Pert uses a _________ _________ for activity durations. three times
are required. - ANSWERS-probability distribution
optimistic time
pessimistic time
most likely time
CPM assumes ______ ______ _______ per activity - ANSWERS-
fixed duration estimate
Project variance is computed by - ANSWERS-summing the variances
of activities on the critical path;
used to calculate the project standard deviation
Requirements of project crashing - ANSWERS--Able to crash activity
-Need to crash activity
-Total cost of crashing is as small as possible
Steps of project crashing - ANSWERS-1. Compute crash cost per
period
2. Identify current critical path activities
3. Select activity that is able to be crashed and has the lowest crash
cost per period
4. Update all activity times and evaluate against target date
, Pros of PERT and CPM - ANSWERS--Useful for large projects
-Relatively easy to use
-Graphical networks highlight relationships among activities
-Critical path identifies activities to be closely monitored
-Responsibility
Cons of PERT and CPM - ANSWERS--Activities have to be clearly
defined
-Precedence relationships established
-Time estimates can be subjective
-Too much focus on critical path
What is the main difference between CPM and PERT techniques? -
ANSWERS-CPM only has one activity duration, whereas PERT has
three (optimistic, pessimistic, and realistic).
What is the main difference between using a Gantt chart versus using
the CPM/PERT techniques? - ANSWERS-Gantt charts do not show
how activities relate to one another, but CPM/PERT do.
What types of ethical issues could arise for a project manager? -
ANSWERS-Bribery for contracts, cover-ups, falsified reports,
pressure to loosen up on quality standards, etc.