Question

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1. Explain the factors to consider when selecting a software process model for a project (Waterfall vs. incremental delivery).

Answer 1

Factors to be considered when selecting software model for business

• Business requirements:

If you clearly know the requirements then waterfall model is good
If your not completely sure about requirements , it's better to go with incremental delivery

In waterfall model once an application is in the testing stage, it is very difficult to go back and change something that was not well-thought out in the concept stage/ once the design phase completes and coding is going on , it's not easy to change design phase again.

• Complexity and lifetime of project:

If the lifetime is short and project is simple then waterfall is better,On other hand lifetime of project is long and complexity level is difficult incremental delivery is good

• Delivery time:

In waterfall model project is to be delivered once all the modules are completed whereas in incremental delivery it depends on client needs,first they deliver much needed module which increases business or module by module,No need to wait for entire project to complete.

• Progress of project:

In waterfall model it's difficult to measure progress of the project in the middle of the project whereas in incremental delivery progress of the project can be easily measured since working features are delivered frequently.