Chapter 6 Managing Process Improvement Projects

| November 9, 2018

21. The optimistic time is the amount of time the project
will take under the worst-case scenario.

22. Using CPM, when activity times are not known with
certainty, we still can determine how long it will actually take to complete
the project.

23. Three phenomena that tend to bias the expected
completion time of projects are inflated time estimates, activity time
variability with path interdependencies, and resource dependence.

24. The amount of safety time needed to protect a particular
path in a project is less than the sum of the safety times required to protect
the individual activities making up the path.

25. The objective of feeding buffers is to ensure that
non-critical chains are completed so that they do not delay tasks on the
critical chain.

26. Favorable variances do not require corrective action or
further investigation; only unfavorable variances in performance.

Short Answer

27. Both PERT and CPM are based on variations of the
__________ chart?

28. The amount of _____ _____ needed to protect a particular
path in a project is less than the sum of the _____ _____ required to protect
the individual activities making up the path.

29. When a project cost, schedule, or time variance is significant,
the project manager must identify (or at least try to do so) an __________
cause for the variance so that the proper remedy can be used to keep it from
recurring.

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