1. What are the diﬀerences between a software life cycle model and a process model?
A software life cycle (SLC) model shows the major phases and the major deliverables, while a process model depicts the low-level tasks, the artifacts needed and produced, and the actors responsible for each low-level task.
2. What is the diﬀerence between a descriptive process model and a prescriptive process model?
A descriptive process model describes what has happened in a software development. It is often developed as the result of a postmortem analysis. A prescriptive model describes what should be done during software development, including responses to error situations.