Being a regular user of PERT/CPM,

Describe the betwork diagrams that Mr Perty will find invaluable

Read the case study below and answer the questions that follow. Reliable Constuction Company The RELIABLE CONSTRUCTION COMPANY has just made the winning bid of $5.4 million to construct a new plant for a major manufacturet. The manulacturer needs the plant to go into operation within a year. Therefore, the contract indudes the following provisions: - A penally of $300,000 if Reiable has not compleled consiruction by the deadline 47 weeks from now. - To provide additional incentive for speedy construction, a bonus of $150,000 will be paid to Reliable if the plant is compleled within 40 weeks Relable is assigning its best consiruction maneget, David Perty, lo this project to help en ure that it stays on schedule. He looks forward to the chalenge of bringing the project in on schedule, and perhaps even finishing early. However. since he is doubiful that it wil be leas ble to finish with 40 weeks without incurring excessive costs, he has decided to focus his initial planning on meeting the deadline of 47 weeks. Mr. Perty will need to arrange for a number of crews to perform the various construction activities at different times Table 22.1 shows his list of the various activities. The third column provides important additional information for coordinating the scheduling of the crews For any given aclivty, its immed ile predecessors (as given in the third column of Table 22.1) are those aclivties that must be completed by no later than the starting time of the given activity. (Similarly, the given activity is called an immediate successor of each of its immedlate predecessors.) When a given activity has more than one immediate predecessor, all must be finished before the activity can begin, In order to schedule the activites