diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 062adf4..dac21f4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,7 +28,7 @@ jobs:
         mkdir -p $BUILD_DIR
 
         ARTIFACT_ID="sax"
-        VERSION="0.9.5-SNAPSHOT"
+        VERSION="1.0.0-SNAPSHOT"
         CLASSIFIER="bundle"
         JAR="$ARTIFACT_ID-$VERSION-$CLASSIFIER.jar"
 
diff --git a/examples/array.jsdx b/examples/array.jsdx
index b5214a9..3c281e0 100644
--- a/examples/array.jsdx
+++ b/examples/array.jsdx
@@ -15,9 +15,9 @@
   program. If not, see <http://opensource.org/licenses/MIT/>.
 -->
 <schema
-  xmlns="http://www.jsonx.org/schema-0.4.xsd"
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://www.jsonx.org/schema-0.4.xsd http://www.jsonx.org/schema.xsd"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd http://www.jsonx.org/schema.xsd"
   targetNamespace="http://www.jsonx.org/examples/array.jsdx">
   <array name="bar-rootArray1">
     <reference type="rootBoolean" minOccurs="5" maxOccurs="6"/>
diff --git a/examples/complete.jsdx b/examples/complete.jsdx
index 4298714..23dfc71 100644
--- a/examples/complete.jsdx
+++ b/examples/complete.jsdx
@@ -15,9 +15,9 @@
   program. If not, see <http://opensource.org/licenses/MIT/>.
 -->
 <schema
-  xmlns="http://www.jsonx.org/schema-0.4.xsd"
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://www.jsonx.org/schema-0.4.xsd http://www.jsonx.org/schema.xsd"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd http://www.jsonx.org/schema.xsd"
   targetNamespace="http://www.jsonx.org/examples/complete.jsdx"
   doc="Schema intended to provide a complete set of variations of declarations">
   <array name="rootArrayBool" doc="Root array boolean">
diff --git a/examples/datatype.jsdx b/examples/datatype.jsdx
index 94e09ea..717d9b7 100644
--- a/examples/datatype.jsdx
+++ b/examples/datatype.jsdx
@@ -15,9 +15,9 @@
   program. If not, see <http://opensource.org/licenses/MIT/>.
 -->
 <schema
-  xmlns="http://www.jsonx.org/schema-0.4.xsd"
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://www.jsonx.org/schema-0.4.xsd http://www.jsonx.org/schema.xsd"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd http://www.jsonx.org/schema.xsd"
   targetNamespace="http://www.jsonx.org/examples/datatype.jsdx"
   doc="Schema intended to express full variability of type declarations">
   <array name="arrayArr" doc="Array of arrays">
diff --git a/examples/reference.jsdx b/examples/reference.jsdx
index 8276161..d4fda32 100644
--- a/examples/reference.jsdx
+++ b/examples/reference.jsdx
@@ -15,9 +15,9 @@
   program. If not, see <http://opensource.org/licenses/MIT/>.
 -->
 <schema
-  xmlns="http://www.jsonx.org/schema-0.4.xsd"
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://www.jsonx.org/schema-0.4.xsd http://www.jsonx.org/schema.xsd"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd http://www.jsonx.org/schema.xsd"
   targetNamespace="http://www.jsonx.org/examples/reference.jsdx"
   doc="Schema focusing on references">
   <array name="arrayObj">
diff --git a/examples/reserved.jsdx b/examples/reserved.jsdx
index 111512f..aba8798 100644
--- a/examples/reserved.jsdx
+++ b/examples/reserved.jsdx
@@ -15,9 +15,9 @@
   program. If not, see <http://opensource.org/licenses/MIT/>.
 -->
 <schema
-  xmlns="http://www.jsonx.org/schema-0.4.xsd"
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://www.jsonx.org/schema-0.4.xsd http://www.jsonx.org/schema.xsd"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd http://www.jsonx.org/schema.xsd"
   targetNamespace="http://www.jsonx.org/examples/reserved.jsdx"
   doc="Schema with names that overlap with Java's reserved words">
   <array name="break" maxIterate="2">
diff --git a/examples/structure.jsdx b/examples/structure.jsdx
index 7333401..4c6fc25 100644
--- a/examples/structure.jsdx
+++ b/examples/structure.jsdx
@@ -15,9 +15,9 @@
   program. If not, see <http://opensource.org/licenses/MIT/>.
 -->
 <schema
-  xmlns="http://www.jsonx.org/schema-0.4.xsd"
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://www.jsonx.org/schema-0.4.xsd http://www.jsonx.org/schema.xsd"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd http://www.jsonx.org/schema.xsd"
   targetNamespace="http://www.jsonx.org/examples/structure.jsdx"
   doc="Schema expressing complex nested structures">
   <array name="array">
diff --git a/examples/template.jsdx b/examples/template.jsdx
index cc73aa4..dd3b2a1 100644
--- a/examples/template.jsdx
+++ b/examples/template.jsdx
@@ -15,9 +15,9 @@
   program. If not, see <http://opensource.org/licenses/MIT/>.
 -->
 <schema
-  xmlns="http://www.jsonx.org/schema-0.4.xsd"
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://www.jsonx.org/schema-0.4.xsd http://www.jsonx.org/schema.xsd"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd http://www.jsonx.org/schema.xsd"
   targetNamespace="http://www.jsonx.org/examples/template.jsdx"
   doc="Schema expressing the variations of templates">
   <array name="arrayDepthFour" minIterate="4" maxIterate="4" doc="Array template">
diff --git a/schema-0.4/schema-0.4.jsd b/schema-0.4/schema-0.4.jsd
index a5e6d64..da64ab5 100644
--- a/schema-0.4/schema-0.4.jsd
+++ b/schema-0.4/schema-0.4.jsd
@@ -1,7 +1,7 @@
 {
-  "jx:ns": "http://www.jsonx.org/schema-0.4.jsd",
-  "jx:schemaLocation": "http://www.jsonx.org/schema-0.4.jsd http://www.jsonx.org/schema-0.4.jsd",
-  "jx:targetNamespace": "http://www.jsonx.org/schema-0.4.jsd",
+  "jx:ns": "http://www.jsonx.org/schema-0.5.jsd",
+  "jx:schemaLocation": "http://www.jsonx.org/schema-0.5.jsd http://www.jsonx.org/schema-0.5.jsd",
+  "jx:targetNamespace": "http://www.jsonx.org/schema-0.5.jsd",
   "min": {
     "jx:type": "string",
     "pattern": "\\d+"
@@ -39,12 +39,12 @@
     "properties": {
       "jx:ns": {
         "jx:type": "string",
-        "pattern": "http://www.jsonx.org/schema-0.4.jsd",
+        "pattern": "http://www.jsonx.org/schema-0.5.jsd",
         "nullable": false
       },
       "jx:schemaLocation": {
         "jx:type": "string",
-        "pattern": "http://www.jsonx.org/schema-0.4.jsd [^ ]+",
+        "pattern": "http://www.jsonx.org/schema-0.5.jsd [^ ]+",
         "use": "optional",
         "nullable": false
       },
diff --git a/schema-0.5/schema-0.5.jsd b/schema-0.5/schema-0.5.jsd
new file mode 100644
index 0000000..da64ab5
--- /dev/null
+++ b/schema-0.5/schema-0.5.jsd
@@ -0,0 +1,710 @@
+{
+  "jx:ns": "http://www.jsonx.org/schema-0.5.jsd",
+  "jx:schemaLocation": "http://www.jsonx.org/schema-0.5.jsd http://www.jsonx.org/schema-0.5.jsd",
+  "jx:targetNamespace": "http://www.jsonx.org/schema-0.5.jsd",
+  "min": {
+    "jx:type": "string",
+    "pattern": "\\d+"
+  },
+  "max": {
+    "jx:type": "string",
+    "pattern": "\\d+|unbounded"
+  },
+  "use": {
+    "jx:type": "string",
+    "pattern": "required|optional"
+  },
+  "nonEmptyString": {
+    "jx:type": "string",
+    "pattern": "\\S|\\S.*\\S"
+  },
+  "documented": {
+    "jx:type": "object",
+    "abstract": true,
+    "properties": {
+      "doc": {
+        "jx:type": "string",
+        "doc": "Defines text comments. Optional."
+      }
+    }
+  },
+  "member": {
+    "jx:type": "object",
+    "abstract": true,
+    "extends": "documented"
+  },
+  "schema": {
+    "jx:type": "object",
+    "extends": "documented",
+    "properties": {
+      "jx:ns": {
+        "jx:type": "string",
+        "pattern": "http://www.jsonx.org/schema-0.5.jsd",
+        "nullable": false
+      },
+      "jx:schemaLocation": {
+        "jx:type": "string",
+        "pattern": "http://www.jsonx.org/schema-0.5.jsd [^ ]+",
+        "use": "optional",
+        "nullable": false
+      },
+      "jx:targetNamespace": {
+        "jx:type": "reference",
+        "type": "nonEmptyString",
+        "use": "optional",
+        "nullable": false
+      },
+      "[a-zA-Z_][-a-zA-Z\\d_]*": {
+        "jx:type": "any",
+        "types": "array boolean number objectType string",
+        "nullable": false,
+        "bindings": [{
+            "lang": "java",
+            "field": "declarations"
+          }]
+      }
+    }
+  },
+  "typeIdentifier": {
+    "jx:type": "string",
+    "pattern": "(([a-zA-Z_$][a-zA-Z\\d_$]*)\\.)*[a-zA-Z_$][a-zA-Z\\d_$]*(\\[\\])?"
+  },
+  "methodIdentifier": {
+    "jx:type": "string",
+    "pattern": "(([a-zA-Z_$][a-zA-Z\\d_$]*)\\.)*[a-zA-Z_$][a-zA-Z\\d_$]*(\\.<init>)?"
+  },
+  "fieldIdentifier": {
+    "jx:type": "string",
+    "pattern": "[a-zA-Z_$][a-zA-Z\\d_$]*"
+  },
+  "binding": {
+    "jx:type": "object",
+    "abstract": true,
+    "properties": {
+      "lang": {
+        "jx:type": "reference",
+        "type": "nonEmptyString",
+        "nullable": false,
+        "doc": "Specifies the language to which this binding applies."
+      }
+    }
+  },
+  "fieldBinding": {
+    "jx:type": "object",
+    "extends": "binding",
+    "doc": "Specifies language-specific binding.",
+    "properties": {
+      "field": {
+        "jx:type": "reference",
+        "type": "fieldIdentifier",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the \"field\" identifier."
+      }
+    }
+  },
+  "typeBinding": {
+    "jx:type": "object",
+    "extends": "binding",
+    "doc": "Specifies language-specific binding.",
+    "properties": {
+      "type": {
+        "jx:type": "reference",
+        "type": "typeIdentifier",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the \"type\" qualified identifier."
+      },
+      "decode": {
+        "jx:type": "reference",
+        "type": "methodIdentifier",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the \"decode\" qualified function identifier that accepts input as a string, or as the native JSON type of this property, and returns an output of the specified \"type\" (or the default type if \"type\" is unspecified)."
+      },
+      "encode": {
+        "jx:type": "reference",
+        "type": "methodIdentifier",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the \"encode\" qualified function identifier that accepts input of the type specified in \"type\" (or the default type if \"type\" is unspecified), and returns an output as a string, or as the native JSON type of this property."
+      }
+    }
+  },
+  "typeFieldBinding": {
+    "jx:type": "object",
+    "extends": "typeBinding",
+    "doc": "Specifies language-specific binding.",
+    "properties": {
+      "field": {
+        "jx:type": "reference",
+        "type": "fieldIdentifier",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the \"field\" identifier."
+      }
+    }
+  },
+  "fieldBindings": {
+    "jx:type": "array",
+    "doc": "Specifies language-specific bindings.",
+    "elements": [{
+        "jx:type": "reference",
+        "type": "fieldBinding",
+        "nullable": false
+      }]
+  },
+  "typeBindings": {
+    "jx:type": "array",
+    "doc": "Specifies language-specific bindings.",
+    "elements": [{
+        "jx:type": "reference",
+        "type": "typeBinding",
+        "nullable": false
+      }]
+  },
+  "typeFieldBindings": {
+    "jx:type": "array",
+    "doc": "Specifies language-specific bindings.",
+    "elements": [{
+        "jx:type": "reference",
+        "type": "typeFieldBinding",
+        "nullable": false
+      }]
+  },
+  "any": {
+    "jx:type": "object",
+    "abstract": true,
+    "extends": "member",
+    "properties": {
+      "jx:type": {
+        "jx:type": "string",
+        "pattern": "any",
+        "nullable": false
+      },
+      "types": {
+        "jx:type": "reference",
+        "type": "nonEmptyString",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "array": {
+    "jx:type": "object",
+    "extends": "member",
+    "properties": {
+      "jx:type": {
+        "jx:type": "string",
+        "pattern": "array",
+        "nullable": false
+      },
+      "minIterate": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the minimum inclusive number of iterations of child elements. Default: 1."
+      },
+      "maxIterate": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the maximum inclusive number of iterations of child elements. Default: 1."
+      },
+      "elements": {
+        "jx:type": "array",
+        "maxIterate": "unbounded",
+        "nullable": false,
+        "elements": [{
+            "jx:type": "reference",
+            "type": "anyElement",
+            "minOccurs": "0",
+            "nullable": false
+          }, {
+            "jx:type": "reference",
+            "type": "arrayElement",
+            "minOccurs": "0",
+            "nullable": false
+          }, {
+            "jx:type": "reference",
+            "type": "booleanElement",
+            "minOccurs": "0",
+            "nullable": false
+          }, {
+            "jx:type": "reference",
+            "type": "numberElement",
+            "minOccurs": "0",
+            "nullable": false
+          }, {
+            "jx:type": "reference",
+            "type": "referenceElement",
+            "minOccurs": "0",
+            "nullable": false
+          }, {
+            "jx:type": "reference",
+            "type": "stringElement",
+            "minOccurs": "0",
+            "nullable": false
+          }, {
+            "jx:type": "reference",
+            "type": "objectElement",
+            "minOccurs": "0",
+            "nullable": false
+          }]
+      }
+    }
+  },
+  "boolean": {
+    "jx:type": "object",
+    "extends": "member",
+    "properties": {
+      "jx:type": {
+        "jx:type": "string",
+        "pattern": "boolean",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "typeBindings",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "number": {
+    "jx:type": "object",
+    "extends": "member",
+    "properties": {
+      "jx:type": {
+        "jx:type": "string",
+        "pattern": "number",
+        "nullable": false
+      },
+      "range": {
+        "jx:type": "string",
+        "pattern": "[\\(\\[](-?(0|[1-9]\\d*)(\\.\\d+)?([eE][+-]?([1-9]\\d*))?)?,(-?(0|[1-9]\\d*)(\\.\\d+)?([eE][+-]?([1-9]\\d*))?)?[\\)\\]]",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the value range in interval notation:\n       Open (exclusive) interval: (min,max)\n       Closed (inclusive) interval: [min,max]\n       Half-open or half-closed interval: [min,max)\n       Degenerate interval: [val]"
+      },
+      "scale": {
+        "jx:type": "number",
+        "scale": 0,
+        "use": "optional",
+        "nullable": false,
+        "doc": "The number of digits to the right of the decimal point. If a value is not specified, the scale is unbounded."
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "typeBindings",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "object": {
+    "jx:type": "object",
+    "abstract": true,
+    "extends": "member",
+    "properties": {
+      "jx:type": {
+        "jx:type": "string",
+        "pattern": "object",
+        "nullable": false
+      },
+      "extends": {
+        "jx:type": "string",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies the name of the type to extend. Optional."
+      },
+      "properties": {
+        "jx:type": "object",
+        "use": "optional",
+        "nullable": false,
+        "properties": {
+          ".*": {
+            "jx:type": "any",
+            "types": "anyProperty arrayProperty booleanProperty numberProperty objectProperty referenceProperty stringProperty",
+            "nullable": false,
+            "bindings": [{
+                "lang": "java",
+                "field": "properties"
+              }]
+          }
+        }
+      }
+    }
+  },
+  "objectType": {
+    "jx:type": "object",
+    "extends": "object",
+    "properties": {
+      "abstract": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false,
+        "doc": "Specifies whether the object is abstract. Default: false."
+      }
+    }
+  },
+  "reference": {
+    "jx:type": "object",
+    "abstract": true,
+    "extends": "member",
+    "properties": {
+      "jx:type": {
+        "jx:type": "string",
+        "pattern": "reference",
+        "nullable": false
+      },
+      "type": {
+        "jx:type": "reference",
+        "type": "nonEmptyString",
+        "nullable": false,
+        "doc": "Specifies the name of the referenced type. Required."
+      }
+    }
+  },
+  "string": {
+    "jx:type": "object",
+    "extends": "member",
+    "properties": {
+      "jx:type": {
+        "jx:type": "string",
+        "pattern": "string",
+        "nullable": false
+      },
+      "pattern": {
+        "jx:type": "reference",
+        "type": "nonEmptyString",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "typeBindings",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "anyProperty": {
+    "jx:type": "object",
+    "extends": "any",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "use": {
+        "jx:type": "reference",
+        "type": "use",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "fieldBindings",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "arrayProperty": {
+    "jx:type": "object",
+    "extends": "array",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "use": {
+        "jx:type": "reference",
+        "type": "use",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "fieldBindings",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "booleanProperty": {
+    "jx:type": "object",
+    "extends": "boolean",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "use": {
+        "jx:type": "reference",
+        "type": "use",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "typeFieldBindings"
+      }
+    }
+  },
+  "numberProperty": {
+    "jx:type": "object",
+    "extends": "number",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "use": {
+        "jx:type": "reference",
+        "type": "use",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "typeFieldBindings"
+      }
+    }
+  },
+  "objectProperty": {
+    "jx:type": "object",
+    "extends": "object",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "use": {
+        "jx:type": "reference",
+        "type": "use",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "fieldBindings",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "referenceProperty": {
+    "jx:type": "object",
+    "extends": "reference",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "use": {
+        "jx:type": "reference",
+        "type": "use",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "fieldBindings",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "stringProperty": {
+    "jx:type": "object",
+    "extends": "string",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "use": {
+        "jx:type": "reference",
+        "type": "use",
+        "use": "optional",
+        "nullable": false
+      },
+      "bindings": {
+        "jx:type": "reference",
+        "type": "typeFieldBindings"
+      }
+    }
+  },
+  "anyElement": {
+    "jx:type": "object",
+    "extends": "any",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "minOccurs": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false
+      },
+      "maxOccurs": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "arrayElement": {
+    "jx:type": "object",
+    "extends": "array",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "minOccurs": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false
+      },
+      "maxOccurs": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "booleanElement": {
+    "jx:type": "object",
+    "extends": "boolean",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "minOccurs": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false
+      },
+      "maxOccurs": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "numberElement": {
+    "jx:type": "object",
+    "extends": "number",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "minOccurs": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false
+      },
+      "maxOccurs": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "objectElement": {
+    "jx:type": "object",
+    "extends": "object",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "minOccurs": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false
+      },
+      "maxOccurs": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "referenceElement": {
+    "jx:type": "object",
+    "extends": "reference",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "minOccurs": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false
+      },
+      "maxOccurs": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  },
+  "stringElement": {
+    "jx:type": "object",
+    "extends": "string",
+    "properties": {
+      "nullable": {
+        "jx:type": "boolean",
+        "use": "optional",
+        "nullable": false
+      },
+      "minOccurs": {
+        "jx:type": "reference",
+        "type": "min",
+        "use": "optional",
+        "nullable": false
+      },
+      "maxOccurs": {
+        "jx:type": "reference",
+        "type": "max",
+        "use": "optional",
+        "nullable": false
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/schema-0.5/schema-0.5.jsdx b/schema-0.5/schema-0.5.jsdx
new file mode 100644
index 0000000..45a846a
--- /dev/null
+++ b/schema-0.5/schema-0.5.jsdx
@@ -0,0 +1,204 @@
+<!--
+  Copyright (c) 2019 JSONx
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  You should have received a copy of The MIT License (MIT) along with this
+  program. If not, see <http://opensource.org/licenses/MIT/>.
+-->
+<schema
+  xmlns="http://www.jsonx.org/schema-0.5.xsd"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://www.jsonx.org/schema-0.5.xsd schema-0.5.xsd"
+  targetNamespace="http://www.jsonx.org/schema-0.5.jsdx">
+
+  <string name="min" pattern="\d+"/>
+  <string name="max" pattern="\d+|unbounded"/>
+  <string name="use" pattern="required|optional"/>
+  <string name="nonEmptyString" pattern="\S|\S.*\S"/>
+
+  <object name="documented" abstract="true">
+    <property name="doc" xsi:type="string" doc="Defines text comments. Optional."/>
+  </object>
+
+  <object name="member" abstract="true" extends="documented"/>
+
+  <object name="schema" extends="documented">
+    <property name="jx:ns" xsi:type="string" pattern="http://www.jsonx.org/schema-0.5.jsd" nullable="false"/>
+    <property name="jx:schemaLocation" xsi:type="string" pattern="http://www.jsonx.org/schema-0.5.jsd [^ ]+" use="optional" nullable="false"/>
+    <property name="jx:targetNamespace" xsi:type="reference" type="nonEmptyString" nullable="false" use="optional"/>
+    <property names="[a-zA-Z_][-a-zA-Z\d_]*" xsi:type="any" types="array boolean number objectType string" nullable="false">
+      <binding lang="java" field="declarations"/>
+    </property>
+  </object>
+
+  <string name="typeIdentifier" pattern="(([a-zA-Z_$][a-zA-Z\d_$]*)\.)*[a-zA-Z_$][a-zA-Z\d_$]*(\[\])?"/>
+  <string name="methodIdentifier" pattern="(([a-zA-Z_$][a-zA-Z\d_$]*)\.)*[a-zA-Z_$][a-zA-Z\d_$]*(\.&lt;init&gt;)?"/>
+  <string name="fieldIdentifier" pattern="[a-zA-Z_$][a-zA-Z\d_$]*"/>
+  
+  <object name="binding" abstract="true">
+    <property name="lang" xsi:type="reference" type="nonEmptyString" nullable="false" doc="Specifies the language to which this binding applies."/>
+  </object>
+  
+  <object name="fieldBinding" extends="binding" doc="Specifies language-specific binding.">
+    <property name="field" xsi:type="reference" type="fieldIdentifier" use="optional" nullable="false" doc="Specifies the &quot;field&quot; identifier."/>
+  </object>
+  
+  <object name="typeBinding" extends="binding" doc="Specifies language-specific binding.">
+    <property name="type" xsi:type="reference" type="typeIdentifier" use="optional" nullable="false" doc="Specifies the &quot;type&quot; qualified identifier."/>
+    <property name="decode" xsi:type="reference" type="methodIdentifier" use="optional" nullable="false" doc="Specifies the &quot;decode&quot; qualified function identifier that accepts input as a string, or as the native JSON type of this property, and returns an output of the specified &quot;type&quot; (or the default type if &quot;type&quot; is unspecified)."/>
+    <property name="encode" xsi:type="reference" type="methodIdentifier" use="optional" nullable="false" doc="Specifies the &quot;encode&quot; qualified function identifier that accepts input of the type specified in &quot;type&quot; (or the default type if &quot;type&quot; is unspecified), and returns an output as a string, or as the native JSON type of this property."/>
+  </object>
+  
+  <object name="typeFieldBinding" extends="typeBinding" doc="Specifies language-specific binding.">
+    <property name="field" xsi:type="reference" type="fieldIdentifier" use="optional" nullable="false" doc="Specifies the &quot;field&quot; identifier."/>
+  </object>
+  
+  <array name="fieldBindings" doc="Specifies language-specific bindings.">
+    <reference type="fieldBinding" nullable="false"/>
+  </array>
+  
+  <array name="typeBindings" doc="Specifies language-specific bindings.">
+    <reference type="typeBinding" nullable="false"/>
+  </array>
+  
+  <array name="typeFieldBindings" doc="Specifies language-specific bindings.">
+    <reference type="typeFieldBinding" nullable="false"/>
+  </array>
+  
+  <object name="any" extends="member" abstract="true">
+    <property name="jx:type" xsi:type="string" pattern="any" nullable="false"/>
+    <property name="types" xsi:type="reference" type="nonEmptyString" use="optional" nullable="false"/>
+  </object>
+  <object name="array" extends="member">
+    <property name="jx:type" xsi:type="string" pattern="array" nullable="false"/>
+    <property name="minIterate" xsi:type="reference" type="min" use="optional" nullable="false" doc="Specifies the minimum inclusive number of iterations of child elements. Default: 1."/>
+    <property name="maxIterate" xsi:type="reference" type="max" use="optional" nullable="false" doc="Specifies the maximum inclusive number of iterations of child elements. Default: 1."/>
+    <property name="elements" xsi:type="array" nullable="false" maxIterate="unbounded">
+      <reference type="anyElement" minOccurs="0" nullable="false"/>
+      <reference type="arrayElement" minOccurs="0" nullable="false"/>
+      <reference type="booleanElement" minOccurs="0" nullable="false"/>
+      <reference type="numberElement" minOccurs="0" nullable="false"/>
+      <reference type="referenceElement" minOccurs="0" nullable="false"/>
+      <reference type="stringElement" minOccurs="0" nullable="false"/>
+      <reference type="objectElement" minOccurs="0" nullable="false"/>
+    </property>
+  </object>
+  <object name="boolean" extends="member">
+    <property name="jx:type" xsi:type="string" pattern="boolean" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="typeBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="number" extends="member">
+    <property name="jx:type" xsi:type="string" pattern="number" nullable="false"/>
+    <property name="range" xsi:type="string" pattern="[\(\[](-?(0|[1-9]\d*)(\.\d+)?([eE][+-]?([1-9]\d*))?)?,(-?(0|[1-9]\d*)(\.\d+)?([eE][+-]?([1-9]\d*))?)?[\)\]]" use="optional" nullable="false" doc="
+      Specifies the value range in interval notation:&#010;
+      Open (exclusive) interval: (min,max)&#010;
+      Closed (inclusive) interval: [min,max]&#010;
+      Half-open or half-closed interval: [min,max)&#010;
+      Degenerate interval: [val]"/>
+    <property name="scale" xsi:type="number" scale="0" use="optional" nullable="false" doc="The number of digits to the right of the decimal point. If a value is not specified, the scale is unbounded."/>
+    <property name="bindings" xsi:type="reference" type="typeBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="object" abstract="true" extends="member">
+    <property name="jx:type" xsi:type="string" pattern="object" nullable="false"/>
+    <property name="extends" xsi:type="string" use="optional" nullable="false" doc="Specifies the name of the type to extend. Optional."/>
+    <property name="properties" xsi:type="object" use="optional" nullable="false">
+      <property names=".*" xsi:type="any" types="anyProperty arrayProperty booleanProperty numberProperty objectProperty referenceProperty stringProperty" nullable="false">
+        <binding lang="java" field="properties"/>
+      </property>
+    </property>
+  </object>
+  <object name="objectType" extends="object">
+    <property xsi:type="boolean" name="abstract" use="optional" nullable="false" doc="Specifies whether the object is abstract. Default: false."/>
+  </object>
+  <object name="reference" abstract="true" extends="member">
+    <property name="jx:type" xsi:type="string" pattern="reference" nullable="false"/>
+    <property name="type" xsi:type="reference" type="nonEmptyString" nullable="false" doc="Specifies the name of the referenced type. Required."/>
+  </object>
+  <object name="string" extends="member">
+    <property name="jx:type" xsi:type="string" pattern="string" nullable="false"/>
+    <property name="pattern" xsi:type="reference" type="nonEmptyString" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="typeBindings" use="optional" nullable="false"/>
+  </object>
+
+  <object name="anyProperty" extends="any">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="use" xsi:type="reference" type="use" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="fieldBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="arrayProperty" extends="array">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="use" xsi:type="reference" type="use" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="fieldBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="booleanProperty" extends="boolean">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="use" xsi:type="reference" type="use" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="typeFieldBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="numberProperty" extends="number">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="use" xsi:type="reference" type="use" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="typeFieldBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="objectProperty" extends="object">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="use" xsi:type="reference" type="use" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="fieldBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="referenceProperty" extends="reference">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="use" xsi:type="reference" type="use" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="fieldBindings" use="optional" nullable="false"/>
+  </object>
+  <object name="stringProperty" extends="string">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="use" xsi:type="reference" type="use" use="optional" nullable="false"/>
+    <property name="bindings" xsi:type="reference" type="typeFieldBindings" use="optional" nullable="false"/>
+  </object>
+
+  <object name="anyElement" extends="any">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="minOccurs" xsi:type="reference" type="min" use="optional" nullable="false"/>
+    <property name="maxOccurs" xsi:type="reference" type="max" use="optional" nullable="false"/>
+  </object>
+  <object name="arrayElement" extends="array">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="minOccurs" xsi:type="reference" type="min" use="optional" nullable="false"/>
+    <property name="maxOccurs" xsi:type="reference" type="max" use="optional" nullable="false"/>
+  </object>
+  <object name="booleanElement" extends="boolean">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="minOccurs" xsi:type="reference" type="min" use="optional" nullable="false"/>
+    <property name="maxOccurs" xsi:type="reference" type="max" use="optional" nullable="false"/>
+  </object>
+  <object name="numberElement" extends="number">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="minOccurs" xsi:type="reference" type="min" use="optional" nullable="false"/>
+    <property name="maxOccurs" xsi:type="reference" type="max" use="optional" nullable="false"/>
+  </object>
+  <object name="objectElement" extends="object">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="minOccurs" xsi:type="reference" type="min" use="optional" nullable="false"/>
+    <property name="maxOccurs" xsi:type="reference" type="max" use="optional" nullable="false"/>
+  </object>
+  <object name="referenceElement" extends="reference">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="minOccurs" xsi:type="reference" type="min" use="optional" nullable="false"/>
+    <property name="maxOccurs" xsi:type="reference" type="max" use="optional" nullable="false"/>
+  </object>
+  <object name="stringElement" extends="string">
+    <property name="nullable" xsi:type="boolean" use="optional" nullable="false"/>
+    <property name="minOccurs" xsi:type="reference" type="min" use="optional" nullable="false"/>
+    <property name="maxOccurs" xsi:type="reference" type="max" use="optional" nullable="false"/>
+  </object>
+  
+</schema>
\ No newline at end of file
diff --git a/schema-0.5/schema-0.5.xsd b/schema-0.5/schema-0.5.xsd
new file mode 100644
index 0000000..3aa5efe
--- /dev/null
+++ b/schema-0.5/schema-0.5.xsd
@@ -0,0 +1,655 @@
+<!--
+  Copyright (c) 2015 JSONx
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  You should have received a copy of The MIT License (MIT) along with this
+  program. If not, see <http://opensource.org/licenses/MIT/>.
+-->
+<xs:schema
+  elementFormDefault="qualified"
+  targetNamespace="http://www.jsonx.org/schema-0.5.xsd"
+  xmlns:jx="http://www.jsonx.org/schema-0.5.xsd"
+  xmlns:dt="http://www.openjax.org/xml/datatypes-0.9.xsd"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema">
+
+  <xs:import namespace="http://www.openjax.org/xml/datatypes-0.9.xsd" schemaLocation="http://www.openjax.org/xml/datatypes-0.9.xsd"/>
+
+  <xs:complexType name="documented" abstract="true">
+    <xs:attribute name="doc" type="xs:string">
+      <xs:annotation>
+        <xs:documentation>
+          Defines text comments. Optional.
+        </xs:documentation>
+      </xs:annotation>
+    </xs:attribute>
+  </xs:complexType>
+
+  <xs:complexType name="member" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:documented"/>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:attributeGroup name="annullable">
+    <xs:attribute name="nullable" type="xs:boolean" default="true">
+      <xs:annotation>
+        <xs:documentation>Specifies whether the element can be null. Default: true.</xs:documentation>
+      </xs:annotation>
+    </xs:attribute>
+  </xs:attributeGroup>
+
+  <xs:attributeGroup name="nameable">
+    <xs:attribute name="name" type="xs:string" use="required">
+      <xs:annotation>
+        <xs:documentation>Specifies the name. Required.</xs:documentation>
+      </xs:annotation>
+    </xs:attribute>
+  </xs:attributeGroup>
+
+  <xs:attributeGroup name="use">
+    <xs:attribute name="use" default="required">
+      <xs:annotation>
+        <xs:documentation>Specifies the property use &lt;required|optional&gt;. Default: required.</xs:documentation>
+      </xs:annotation>
+      <xs:simpleType>
+        <xs:restriction base="xs:string">
+          <xs:enumeration value="required"/>
+          <xs:enumeration value="optional"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+  </xs:attributeGroup>
+
+  <xs:simpleType name="typeRef">
+    <xs:annotation>
+      <xs:documentation>Identifier pattern that must start with either a capital letter, or must include a '$' followed by a capital letter.</xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:IDREF"/>
+  </xs:simpleType>
+
+  <xs:attributeGroup name="id">
+    <xs:attribute name="name" use="required">
+      <xs:annotation>
+        <xs:documentation>Specifies the name. Required.</xs:documentation>
+      </xs:annotation>
+      <xs:simpleType>
+        <xs:restriction base="xs:ID">
+          <xs:pattern value="([a-zA-Z]+\d*)+([.-]?[a-zA-Z]+\d*)*"/>
+        </xs:restriction>
+      </xs:simpleType>
+    </xs:attribute>
+  </xs:attributeGroup>
+
+  <xs:complexType name="referenceMember" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:member">
+        <xs:attribute name="type" type="jx:typeRef" use="required">
+          <xs:annotation>
+            <xs:documentation>Specifies the name of the referenced type. Required.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:simpleType name="methodIdentifier">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="(([a-zA-Z_$][a-zA-Z\d_$]*)\.)*[a-zA-Z_$][a-zA-Z\d_$]*(\.&lt;init&gt;)?"/>
+    </xs:restriction>
+  </xs:simpleType>
+  
+  <xs:simpleType name="typeIdentifier">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="(([a-zA-Z_$][a-zA-Z\d_$]*)\.)*[a-zA-Z_$][a-zA-Z\d_$]*(\[\])?"/>
+    </xs:restriction>
+  </xs:simpleType>
+  
+  <xs:simpleType name="fieldIdentifier">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="[a-zA-Z_$][a-zA-Z\d_$]*"/>
+    </xs:restriction>
+  </xs:simpleType>
+  
+  <xs:complexType name="binding">
+    <xs:attribute name="lang" type="dt:NCNameNonEmpty" use="required">
+      <xs:annotation>
+        <xs:documentation>Specifies the language to which this binding applies.</xs:documentation>
+      </xs:annotation>
+    </xs:attribute>
+  </xs:complexType>
+  
+  <xs:complexType name="fieldBinding">
+    <xs:complexContent>
+      <xs:extension base="jx:binding">
+        <xs:attribute name="field" type="jx:fieldIdentifier">
+          <xs:annotation>
+            <xs:documentation>Specifies the "field" identifier.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  
+  <xs:complexType name="typeBinding">
+    <xs:complexContent>
+      <xs:extension base="jx:binding">
+        <xs:attribute name="type" type="jx:typeIdentifier">
+          <xs:annotation>
+            <xs:documentation>Specifies the "type" qualified identifier.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+        <xs:attribute name="decode" type="jx:methodIdentifier">
+          <xs:annotation>
+            <xs:documentation>Specifies the "decode" qualified function identifier that accepts input as a string, or as the native JSON type of this property, and returns an output of the specified "type" (or the default type if "type" is unspecified).</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+        <xs:attribute name="encode" type="jx:methodIdentifier">
+          <xs:annotation>
+            <xs:documentation>Specifies the "encode" qualified function identifier that accepts input of the type specified in "type" (or the default type if "type" is unspecified), and returns an output as a string, or as the native JSON type of this property.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  
+  <xs:complexType name="typeFieldBinding">
+    <xs:complexContent>
+      <xs:extension base="jx:typeBinding">
+        <xs:attribute name="field" type="jx:fieldIdentifier">
+          <xs:annotation>
+            <xs:documentation>Specifies the "field" identifier.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+  
+  <xs:complexType name="reference">
+    <xs:complexContent>
+      <xs:extension base="jx:referenceMember">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="binding" type="jx:fieldBinding">
+            <xs:annotation>
+              <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+            </xs:annotation>
+          </xs:element>
+        </xs:sequence>
+        <xs:attributeGroup ref="jx:nameable"/>
+        <xs:attributeGroup ref="jx:annullable"/>
+        <xs:attributeGroup ref="jx:use"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="anyMember" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:member">
+        <xs:attribute name="types" type="xs:IDREFS">
+          <xs:annotation>
+            <xs:documentation>Specifies a list of type names. Optional.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+        <xs:attributeGroup ref="jx:annullable"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="any">
+    <xs:complexContent>
+      <xs:extension base="jx:anyMember">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="binding" type="jx:fieldBinding">
+            <xs:annotation>
+              <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+            </xs:annotation>
+          </xs:element>
+        </xs:sequence>
+        <xs:attributeGroup ref="jx:use"/>
+        <xs:attribute name="names" type="dt:stringNonEmpty" use="required">
+          <xs:annotation>
+            <xs:documentation>Specifies the regex pattern of property names. Required.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="booleanMember" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:member"/>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="boolean">
+    <xs:complexContent>
+      <xs:extension base="jx:booleanMember">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="binding" type="jx:typeFieldBinding">
+            <xs:annotation>
+              <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+            </xs:annotation>
+          </xs:element>
+        </xs:sequence>
+        <xs:attributeGroup ref="jx:nameable"/>
+        <xs:attributeGroup ref="jx:annullable"/>
+        <xs:attributeGroup ref="jx:use"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="numberMember" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:member">
+        <xs:attribute name="range">
+          <xs:annotation>
+            <xs:documentation>
+              Specifies the value range in interval notation:
+              Open (exclusive) interval: (min,max)
+              Closed (inclusive) interval: [min,max]
+              Half-open or half-closed interval: [min,max)
+            </xs:documentation>
+          </xs:annotation>
+          <xs:simpleType>
+            <xs:restriction base="xs:string">
+              <xs:pattern value="[(\[](-?(0|[1-9]\d*)(\.\d+)?([eE][+-]?([1-9]\d*))?)?,(-?(0|[1-9]\d*)(\.\d+)?([eE][+-]?([1-9]\d*))?)?[)\]]"/>
+            </xs:restriction>
+          </xs:simpleType>
+        </xs:attribute>
+        <xs:attribute name="scale" type="xs:long">
+          <xs:annotation>
+            <xs:documentation>
+              The number of digits to the right of the decimal point. If a value is not specified, the scale is unbounded.
+            </xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+        <xs:assert test="not(@range) or (some $range in replace(@range, '[\[\(\]\)]', ''), $min in substring-before($range, ','), $max in substring-after($range, ',') satisfies not($min) or not($max) or number($max) >= number($min))"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="number">
+    <xs:complexContent>
+      <xs:extension base="jx:numberMember">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="binding" type="jx:typeFieldBinding">
+            <xs:annotation>
+              <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+            </xs:annotation>
+          </xs:element>
+        </xs:sequence>
+        <xs:attributeGroup ref="jx:nameable"/>
+        <xs:attributeGroup ref="jx:annullable"/>
+        <xs:attributeGroup ref="jx:use"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="stringMember" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:member">
+        <xs:attribute name="pattern" type="dt:stringNonEmpty">
+          <xs:annotation>
+            <xs:documentation>Specifies the regex pattern.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="string">
+    <xs:complexContent>
+      <xs:extension base="jx:stringMember">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="binding" type="jx:typeFieldBinding">
+            <xs:annotation>
+              <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+            </xs:annotation>
+          </xs:element>          
+        </xs:sequence>
+        <xs:attributeGroup ref="jx:nameable"/>
+        <xs:attributeGroup ref="jx:annullable"/>
+        <xs:attributeGroup ref="jx:use"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:simpleType name="maxOccurs">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="([1-9]\d*)|(unbounded)"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:attributeGroup name="recurrable">
+    <xs:attribute name="minOccurs" type="xs:nonNegativeInteger" default="1">
+      <xs:annotation>
+        <xs:documentation>Specifies the minimum inclusive number of occurrence of this element. Default: 1.</xs:documentation>
+      </xs:annotation>
+    </xs:attribute>
+    <xs:attribute name="maxOccurs" type="jx:maxOccurs" default="unbounded">
+      <xs:annotation>
+        <xs:documentation>Specifies the maximum inclusive number of occurrence of this element. Default: unbounded.</xs:documentation>
+      </xs:annotation>
+    </xs:attribute>
+  </xs:attributeGroup>
+
+  <xs:complexType name="arrayMember" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:member">
+        <xs:choice minOccurs="1" maxOccurs="unbounded">
+          <xs:element name="any">
+            <xs:complexType>
+              <xs:complexContent>
+                <xs:extension base="jx:anyMember">
+                  <xs:attributeGroup ref="jx:recurrable"/>
+                </xs:extension>
+              </xs:complexContent>
+            </xs:complexType>
+          </xs:element>
+          <xs:element name="array">
+            <xs:complexType>
+              <xs:complexContent>
+                <xs:extension base="jx:arrayMember">
+                  <xs:attributeGroup ref="jx:annullable"/>
+                  <xs:attributeGroup ref="jx:recurrable"/>
+                </xs:extension>
+              </xs:complexContent>
+            </xs:complexType>
+          </xs:element>
+          <xs:element name="boolean">
+            <xs:complexType>
+              <xs:complexContent>
+                <xs:extension base="jx:booleanMember">
+                  <xs:sequence minOccurs="0" maxOccurs="unbounded">
+                    <xs:element name="binding" type="jx:typeBinding">
+                      <xs:annotation>
+                        <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+                      </xs:annotation>
+                    </xs:element>
+                  </xs:sequence>
+                  <xs:attributeGroup ref="jx:annullable"/>
+                  <xs:attributeGroup ref="jx:recurrable"/>
+                </xs:extension>
+              </xs:complexContent>
+            </xs:complexType>
+            <xs:unique name="uniqueArrayBooleanBindingLang">
+              <xs:selector xpath="./jx:binding"/>
+              <xs:field xpath="@lang"/>
+            </xs:unique>
+          </xs:element>
+          <xs:element name="number">
+            <xs:complexType>
+              <xs:complexContent>
+                <xs:extension base="jx:numberMember">
+                  <xs:sequence minOccurs="0" maxOccurs="unbounded">
+                    <xs:element name="binding" type="jx:typeBinding">
+                      <xs:annotation>
+                        <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+                      </xs:annotation>
+                    </xs:element>
+                  </xs:sequence>
+                  <xs:attributeGroup ref="jx:annullable"/>
+                  <xs:attributeGroup ref="jx:recurrable"/>
+                </xs:extension>
+              </xs:complexContent>
+            </xs:complexType>
+            <xs:unique name="uniqueArrayNumberBindingLang">
+              <xs:selector xpath="./jx:binding"/>
+              <xs:field xpath="@lang"/>
+            </xs:unique>
+          </xs:element>
+          <xs:element name="string">
+            <xs:complexType>
+              <xs:complexContent>
+                <xs:extension base="jx:stringMember">
+                  <xs:sequence minOccurs="0" maxOccurs="unbounded">
+                    <xs:element name="binding" type="jx:typeBinding">
+                      <xs:annotation>
+                        <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+                      </xs:annotation>
+                    </xs:element>
+                  </xs:sequence>
+                  <xs:attributeGroup ref="jx:annullable"/>
+                  <xs:attributeGroup ref="jx:recurrable"/>
+                </xs:extension>
+              </xs:complexContent>
+            </xs:complexType>
+            <xs:unique name="uniqueArrayStringBindingLang">
+              <xs:selector xpath="./jx:binding"/>
+              <xs:field xpath="@lang"/>
+            </xs:unique>
+          </xs:element>
+          <xs:element name="reference">
+            <xs:complexType>
+              <xs:complexContent>
+                <xs:extension base="jx:referenceMember">
+                  <xs:attributeGroup ref="jx:annullable"/>
+                  <xs:attributeGroup ref="jx:recurrable"/>
+                </xs:extension>
+              </xs:complexContent>
+            </xs:complexType>
+          </xs:element>
+        </xs:choice>
+        <xs:attribute name="minIterate" type="xs:nonNegativeInteger" default="1">
+          <xs:annotation>
+            <xs:documentation>Specifies the minimum inclusive number of iterations of child elements. Default: 1.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+        <xs:attribute name="maxIterate" type="jx:maxOccurs" default="1">
+          <xs:annotation>
+            <xs:documentation>Specifies the maximum inclusive number of iterations of child elements. Default: 1.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="array">
+    <xs:complexContent>
+      <xs:extension base="jx:arrayMember">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="binding" type="jx:fieldBinding">
+            <xs:annotation>
+              <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+            </xs:annotation>
+          </xs:element>
+        </xs:sequence>
+        <xs:attributeGroup ref="jx:nameable"/>
+        <xs:attributeGroup ref="jx:annullable"/>
+        <xs:attributeGroup ref="jx:use"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="objectMember" abstract="true">
+    <xs:complexContent>
+      <xs:extension base="jx:member">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="property" type="jx:member">
+            <xs:unique name="uniqueMemberObjectPropertyName">
+              <xs:selector xpath="./jx:property"/>
+              <xs:field xpath="@name"/>
+            </xs:unique>
+            <xs:unique name="uniqueObjectBindingLang">
+              <xs:selector xpath="./jx:binding"/>
+              <xs:field xpath="@lang"/>
+            </xs:unique>
+            <xs:unique name="uniqueObjectBindingField">
+              <xs:selector xpath="./jx:binding"/>
+              <xs:field xpath="@lang"/>
+              <xs:field xpath="@field"/>
+            </xs:unique>
+            <xs:unique name="uniqueMemberObjectBindingField">
+              <xs:selector xpath="./jx:property/jx:binding"/>
+              <xs:field xpath="@lang"/>
+              <xs:field xpath="@field"/>
+            </xs:unique>
+            <xs:unique name="uniqueMemberObjectBindingField2">
+              <xs:selector xpath="."/>
+              <xs:field xpath="@name"/>
+              <xs:field xpath="@extends"/>
+            </xs:unique>
+          </xs:element>
+        </xs:sequence>
+        <xs:attribute name="extends" type="jx:typeRef">
+          <xs:annotation>
+            <xs:documentation>Specifies the name of the type to extend. Optional.</xs:documentation>
+          </xs:annotation>
+        </xs:attribute>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:complexType name="object">
+    <xs:complexContent>
+      <xs:extension base="jx:objectMember">
+        <xs:sequence minOccurs="0" maxOccurs="unbounded">
+          <xs:element name="binding" type="jx:fieldBinding">
+            <xs:annotation>
+              <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+            </xs:annotation>
+          </xs:element>
+        </xs:sequence>
+        <xs:attributeGroup ref="jx:nameable"/>
+        <xs:attributeGroup ref="jx:annullable"/>
+        <xs:attributeGroup ref="jx:use"/>
+      </xs:extension>
+    </xs:complexContent>
+  </xs:complexType>
+
+  <xs:element name="schema">
+    <xs:complexType>
+      <xs:complexContent>
+        <xs:extension base="jx:documented">
+          <xs:sequence>
+            <xs:choice minOccurs="0" maxOccurs="unbounded">
+              <xs:element name="boolean">
+                <xs:complexType>
+                  <xs:complexContent>
+                    <xs:extension base="jx:booleanMember">
+                      <xs:sequence minOccurs="0" maxOccurs="unbounded">
+                        <xs:element name="binding" type="jx:typeBinding">
+                          <xs:annotation>
+                            <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+                          </xs:annotation>
+                        </xs:element>
+                      </xs:sequence>
+                      <xs:attributeGroup ref="jx:id"/>
+                    </xs:extension>
+                  </xs:complexContent>
+                </xs:complexType>
+                <xs:unique name="uniqueBooleanBindingLang">
+                  <xs:selector xpath="./jx:binding"/>
+                  <xs:field xpath="@lang"/>
+                </xs:unique>
+              </xs:element>
+              <xs:element name="number">
+                <xs:complexType>
+                  <xs:complexContent>
+                    <xs:extension base="jx:numberMember">
+                      <xs:sequence minOccurs="0" maxOccurs="unbounded">
+                        <xs:element name="binding" type="jx:typeBinding">
+                          <xs:annotation>
+                            <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+                          </xs:annotation>
+                        </xs:element>
+                      </xs:sequence>
+                      <xs:attributeGroup ref="jx:id"/>
+                    </xs:extension>
+                  </xs:complexContent>
+                </xs:complexType>
+                <xs:unique name="uniqueNumberBindingLang">
+                  <xs:selector xpath="./jx:binding"/>
+                  <xs:field xpath="@lang"/>
+                </xs:unique>
+              </xs:element>
+              <xs:element name="string">
+                <xs:complexType>
+                  <xs:complexContent>
+                    <xs:extension base="jx:stringMember">
+                      <xs:sequence minOccurs="0" maxOccurs="unbounded">
+                        <xs:element name="binding" type="jx:typeBinding">
+                          <xs:annotation>
+                            <xs:documentation>Specifies language-specific bindings.</xs:documentation>
+                          </xs:annotation>
+                        </xs:element>
+                      </xs:sequence>
+                      <xs:attributeGroup ref="jx:id"/>
+                    </xs:extension>
+                  </xs:complexContent>
+                </xs:complexType>
+                <xs:unique name="uniqueStringBindingLang">
+                  <xs:selector xpath="./jx:binding"/>
+                  <xs:field xpath="@lang"/>
+                </xs:unique>
+              </xs:element>
+              <xs:element name="array">
+                <xs:complexType>
+                  <xs:complexContent>
+                    <xs:extension base="jx:arrayMember">
+                      <xs:attributeGroup ref="jx:id"/>
+                    </xs:extension>
+                  </xs:complexContent>
+                </xs:complexType>
+              </xs:element>
+              <xs:element name="object">
+                <xs:complexType>
+                  <xs:complexContent>
+                    <xs:extension base="jx:objectMember">
+                      <xs:attribute name="abstract" type="xs:boolean" default="false">
+                        <xs:annotation>
+                          <xs:documentation>Specifies whether the object is abstract. Default: false.</xs:documentation>
+                        </xs:annotation>
+                      </xs:attribute>
+                      <xs:attributeGroup ref="jx:id"/>
+                      <xs:assert test="count(distinct-values(@name | @extends)) = count(@name | @extends)">
+                        <xs:annotation>
+                          <xs:documentation>
+                            Object cannot extend itself.
+                          </xs:documentation>
+                        </xs:annotation>
+                      </xs:assert>
+                    </xs:extension>
+                  </xs:complexContent>
+                </xs:complexType>
+                <xs:unique name="uniqueRootObjectPropertyName">
+                  <xs:selector xpath="./jx:property"/>
+                  <xs:field xpath="@name | @names"/>
+                </xs:unique>
+                <xs:unique name="uniqueRootObjectBindingField">
+                  <xs:selector xpath="./jx:property/jx:binding"/>
+                  <xs:field xpath="@lang"/>
+                  <xs:field xpath="@field"/>
+                </xs:unique>
+              </xs:element>
+            </xs:choice>
+          </xs:sequence>
+          <xs:attribute name="targetNamespace">
+            <xs:simpleType>
+              <xs:restriction base="xs:string">
+                <xs:pattern value="(\S)|(\S.*\S)"/>
+              </xs:restriction>
+            </xs:simpleType>
+          </xs:attribute>
+        </xs:extension>
+      </xs:complexContent>
+    </xs:complexType>
+    <xs:key name="object_name">
+      <xs:selector xpath="./jx:object"/>
+      <xs:field xpath="@name"/>
+    </xs:key>
+    <xs:keyref name="extends_must_match_object_name" refer="jx:object_name">
+      <xs:selector xpath=".//jx:object"/>
+      <xs:field xpath="@extends"/>
+    </xs:keyref>
+  </xs:element>
+
+</xs:schema>
\ No newline at end of file
diff --git a/schema.jsd b/schema.jsd
index b58b728..96c4332 120000
--- a/schema.jsd
+++ b/schema.jsd
@@ -1 +1 @@
-schema-0.4/schema-0.4.jsd
\ No newline at end of file
+schema-0.5/schema-0.5.jsd
\ No newline at end of file
diff --git a/schema.jsdx b/schema.jsdx
index d5d7612..0241ad3 120000
--- a/schema.jsdx
+++ b/schema.jsdx
@@ -1 +1 @@
-schema-0.4/schema-0.4.jsdx
\ No newline at end of file
+schema-0.5/schema-0.5.jsdx
\ No newline at end of file
diff --git a/schema.xsd b/schema.xsd
index a496f60..353cda6 120000
--- a/schema.xsd
+++ b/schema.xsd
@@ -1 +1 @@
-schema-0.4/schema-0.4.xsd
\ No newline at end of file
+schema-0.5/schema-0.5.xsd
\ No newline at end of file