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Alternative Approaches (Describe the main features of different approaches…

- - - - Business Modelling: Here a complete analysis of the business is carried out to determine the flow of information
      - Data Modelling: Here data objects are identified and defined and the relations between the data objects are established
      - Process Modelling: Process descriptions for making any kind of addition or modification to a data object or the retrieval of a data object are identified at this stage
      - Application Generation: The actual system is developed using automated tools to generate code for the final application.
      - Testing and Turnover: Prototypes are tested at each iteration so the overall testing time is reduced in RAD however the application interface and the data flow between the components must be tested thoroughly
- - - - Reduction in development time
      - Components reviewed at an early stage
      - Client feedback encouraged
      - Components can be reused
    - - Not suited to all systems
      - Expensive approach due to use of automated code generation and modelling tools
  - - - Increased customer satisfaction due to fast delivery of software solution
      - System is adapted regularly to meet change in User Requirements
      - All parties work closely on development
    - - Limited documentation which may mean future maintenance or review could be difficult
      - Project can easily lose focus if customer unclear of own requirements
      - Only experienced programmers suited to this type of development
  - - - Rigid model with specific outcomes expected at end of each phase. Makes it easy to understand and apply.
      - Works well for small projects where requirements are clear.
      - No overlapping of phases so easy to implement.
    - - No software produced until late in the development process so high level of risk involved
      - Once testing begins amendments to system requirements cannot be made easily