Software Development Life Cycle

Software Development Life Cycle

1. Waterfall Life Cycle Model

   • Advantages
     • Easy to use
     • Specific purpose
     • Small development projects
   • Disadvantages
     • Usefulness is limited
     • Developing object-oriented
     • Requirements are unknow

2. Spiral Life Cycle Model

   • Advantages
     • Risk Avoidance
     • Time
   • Disavantages
     • Cost
     • Highly specific expertise
   • Four Phases
     • Planning
     • Risk Analysis
     • Engineering
     • Evaluation
   • Evaluation
     • Production
     • Progress

3. Incremental Life Cycle Model

   • Advantages
     • Prototype Early
     • Flexible
     • Effective Tool
   • Disavantages
     • Rigidity
     • Errors
     • Longterm Projects

4. V-Shaped Life Cycle Model

   • Advantages
     • Specific goals
     • Preparing test plans
     • Small development projects
   • Disavantages
     • Add changes requirements later
     • Complex projects
     • Development occurs a single phase

5. Software Development Life Cycle Model

   • Requirements-gathering
     • Needs
     • Functions
     • Goals
   • Design
     • Focus
     • Ideas
     • Criteria
   • Implementation
     • Program Code
     • Design Tools
     • Central Goal
   • Testing
     • Unit Tests
     • System Tests
     • Integration

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