CSCI_4600_2_4_2019.md

Elaboration - Requirements Due this Friday at 11:00 50 points

Software stuff

You may think your elaboration is good enough, but you can always explain yourself better

Process

Requirements elicitation and analysis: getting tasks from user
- Requirements specification
  - Requirements validation
    - Requirements documents
  - User and system requirements
- system descriptions

Software specification

The process of establishing what services are required a the constraints on the system's operation and development
Requirements
- Requirements elicitation and analysis
  - What do the system stakeholders require
- Req specification
- What should the brakes on a car do as opposed to the accelerator?

General model of the design process

Personal data is heavily protected
Timing
Security
ERD = entitiy relation diagram
Design
- input
- activity
- output

System Implementation

The software is implemented either by dev a program or programs or by configuring an application system
Design and implementation are interleaved activities for most types of software system
Programming is an individual activity

Software Validation

Verification and validation (V & V) is to check if the product meets requirements
review by system testing
System testing involves executing the system with test data design after all user applications
Tsting is most common in V&V activity

Stages of Testing

Component Testing
System testing
acceptance testing

NOTE: Can go back to step 1.

System evolution

Define system requirements
Assess existing systems
- Existing systems
Purpose system changes
Modify systems
- New System

Coding with change

Change anticipation, where the software is prepared to be changes
Change tolerance, how much can software change before needing a rework

Coping with changing reqs

Prototype the thing
- Bob would test with his/her responses
Incremental delivery
- update
- AGILE DEV (NOT WATERFALL)