单项选择题 （） are individuals and organizations that are actively involved in the project, or whose interests may be affected as a result of project execution or project completion; they may also exert influence over the project and its results.

单项选择题 （） is a measurable, verifiable work product such as specification. feasibility study report, detail document, or working prototype

单项选择题 The（）technique involves using project characteristics in a mathematical model to predict total project cost. Models can be simple or complex.