What is Incremental Model ?Its Strengths,Weaknesses and when to use it?
The incremental model prioritizes requirements of the system and then implements them in groups.Each subsequent release of the system adds function to the previous release, until all designed functionality has been implemented.
Incremental Model Strengths:
Develop high-risk or major functions first
Each release delivers an operational
Customer can respond to each build
Uses “divide and conquer” breakdown of tasks
Lowers initial delivery cost
Initial product delivery is faster
Customers get important functionality early
Risk of changing requirements is reduced
Incremental Model Weaknesses:
- Requires good planning and design
- Requires early definition of a complete and fully functional system to allow for the definition of increments
- Well-defined module interfaces are required (some will be developed long before others)
- Total cost of the complete system is not lower
When to use the Incremental Model:
- Risk, funding, schedule, program complexity, or need for early realization of .
- Most of the requirements are known up-front but are expected to evolve over time
- A need to get basic functionality to the market early
- On projects which have lengthy development schedules
- On a project with new technology
- What is Rapid Application Development(RAD) Model? Its Strengths, Weaknesses and When to use RAD?
- What is Spiral Model ? Its Strengths, Weaknesses and when to use it?
- SDLC (Software Development Life Cycle) Models
- What to do if there isn’t enough time for thorough testing?
- What is Waterfall Model ? What are Waterfall Strengths and Deficiencies? when to use it?