Conclusion

Chapter 1

Types of Software Products

• Generic Products
• Customized Products

Software Process Activities

• Software Specification
• Software Development
• Software Validation
• Software Evolution

General Issues that Affect Software

• Heterogeneity
• Business and Social Change
• Security and Trust
• Scale

Evolution Processes

1. Change Identification Process
2. Change Proposals
3. Software Evolution Process
4. New System

Chapter 2

Types of Software Processes

• Plan-driven Process
• Agile Process

Development Models

Waterfall Model

Process

1. Requirements Analysis and Definition
2. System and Software Design
3. Implementation and Unit Testing
4. Integration and System Testing
5. Operation and Maintenance

Problems

• Difficult to make change.
• Inflexible partition of the project.
• Usually used for large systems.

Incremental Model

Process

1. Outline Description
2. Specification, Development and Validation.

Benefits

• The cost of accommodating changing customer requirements is reduced.
• Easy to get customer feedback.
• More rapid delivery and development.

Problems

• Invisible Process
• System structure will degrade as new increments are added.

Prototyping

Process

1. Prototyping Plan
2. Outline Definition
3. Executable Prototype
4. Evaluation Report

Benefits

• Improved system usability.
• A closer match to users' real needs.
• Improved design quality.
• Improved maintainability.
• Reduced development effort.

Problems

• The prototype may not be used in the same way as he final system.
• The tester of the prototype may not be typical system users.
• Extra training time.

Spiral Model

Phases

• Planning
• Risk Analysis
• Engineering

Rational Unified Process

Workflow

• Business Modelling
• Requirements
• Analysis and Design
• Implementation
• Testing
• Deployment
• Configuration and Change Management
• Project Management
• Environment

Plan-driven VS Agile Development

Process of Change Requirements of Plan-driven

Process of Change Requirements of Agile Development

Principles of Agile Methods

• Customer Involvement
• Incremental Delivery
• People not Process
• Embrace Change
• Maintain Simplicity

Extreme Programming (XP)

• XP Planning
• XP Design
• XP Coding
• XP Testing

SCRUM Process Flow

• Holding short meetings.
• Deliver demos to customers and gain feedback.