What are the phases of the waterfall life-cycle model and what percentage of their total effort do you think typical software teams spend on each phase?
Compare and contrast the following traditional life-cycle models.
- Waterfall
- Prototyping
- Spiral
What percentage of software projects are successful, challenged or failed?
Speculate on the following statistics regarding the instability of project requirements:
- the percentage of a project’s requirements change during the life of a project
- the percentage of a project’s requirements whose implementations actually get used
This instability is commonly known as requirements churn.