当这些实践就位时，就可以根据为项目编制好的计划来执行并管理这些项目了。
When these practices are in place, projects are performed and managed according to their documented plans.
测试经理负责指南集中的系统测试的执行，并管理不同的测试角色（谁，做什么，以及什么时间）。
The test manager is responsible for the execution of system tests within the set of guidelines and manages the various test roles (who, what, and when).
为了处理、计划并执行项目组合管理实践的实现，您必须了解工作的类型和环境。
The type and context of the effort must be understood in order to approach, plan, and execute the implementation of portfolio management practices.
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