There are books that define it. RUP includes reviews. Even if some projects using RUP operate at CMM level 4, some do not. List a risk in project planning and a risk in analysis that could easily be encountered on a software development project. For each risk, state whether or not XP addresses this risk, and if so, explain how it is able to minimize the effects of the risk.
Every pet belongs to somebody.
Some people have no pet. People may share pets. Most, but not all, pets have a veterinatian. Model relationships in this system by an ER diagram, indicating cardinality and modality of all relations. You are designing a system to control a single robot in a car manufacturing assembly line.