Software Development Life Cycle

WATERFALL LIFE CYCLE MODEL
1. Advantages of the Waterfall model
  1. simple and easy to use
  2. easy to implement
  3. is appropriate for small development projects
  4. Easy to manage
2. Disadvantages of the Waterfall model
  1. usefulness is limited
  2. inappropriate for complex projects
  3. not be used for developing object-oriented
Software Development Life Cycle Model
1. Requirements-gathering
  1. the needs of the company are outlined
  2. “wish-lists”
  3. Questions About the system
  4. list of functions
2. Design
  1. the designers attempt to turn the dreams of the managers and users into reality.
3. Implementation
  1. goal to fulfill the requirements of the company
  2. to meet the design outlined in the design phase.
  3. automate code generation
4. Testing
  1. plan is created to describe the unit tests
    1. individual software components
V-Shaped Life Cycle Model
1. Advantages of the V-Shaped model
  1. simple and easy to use.
  2. higher chance for success
  3. appropriate for small development projects
  4. well understood.
2. Disadvantages of the V-Shaped model
  1. inappropriate for most projects.
Incremental Life Cycle Model.
1. Advantages of the Incremental model
  1. prototype early
  2. easier to test and debug
2. Disadvantages of the Incremental model
  1. inappropriate for large, longterm projects
Spiral Life Cycle Model
1. Advantages of the Spiral model
  1. ideal for large-scale and missioncritical
  2. software code is developed early
  3. software code is developed early
2. Disadvantages of the Spiral model
  1. The Spiral model is inappropriate for use in small and medium-scale projects that are not mission-critical.
  2. Hard to implement
  3. requires highly specific expertise

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Software Development Life Cycle

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