1- Planning
2- Analysis
3- Design - Logical vs physical
4- Implementation
5- Maintenance
Advantages:
- Fits large projects
- Sequential
- Non-linear
- Focus on goals
- Tools, CASE, Models
Disadvantages:
- End user is not envolved in this prroach
- Costly
- Takes time
- Failure to meet budget
- Failure to meet expectations
1- Identify problem
2-Initiatial requirments
3-Developing a prototype
4- Testing
- User accepts -> finish
- User reject -> Re-developing the prototype with more requirments
Advantages:
- The user is involved in this approach
- Improved user communications
- Takes less time
- Less cost
- Non-linear
- Sequential
- less complex
- Fast development
- Verifying user needs
- Low risk
Disadvantages:
- Stand alone development
- Poor performance
- Difficult to manage process
- Creates unrealistics expectations
- Documentation is difficult