CM includes: the type of development software (eg JBuilder), Bug track software(eg Rational ClearQuest), source control (eg. Rational ClearCase and CVS), and also test suite that QA uses. PM 包括管理用户需求,包括需求的改变.制定开发时间表,开发顺序.管理人员工作.And keeping a project on track. A PM also has to coordinate the efforts