● (66) from one phase are usually reviewed for completeness and accuracyand approved before work starts on the next phase.

● Organizations perform. work to achieve a set of objectives. Generally,work can be categorized as either projects or operations, although the twosometimes are (67) .

● In the project management context, (68) includes characteristics of unification, consolidation, articulation, and integrative actions that are crucial to project completion, successfully meeting customer and other stakeholder requirements, and managing expectations.

● Project (69) Management includes the processes required to ensure thatthe project includes all the work required, and only the work required, tocomplete the project successfully.

● On some projects, especially ones of smaller scope, activity sequencing, activity resource estimating, activity duration estimating, and (70) are so tightly linked that they are viewed as a single process that can be performed by a person over a relatively short period of time.

● In approximating costs, the estimator considers the possible causes ovariation of the cost estimates, including（71） 。