Refer to the network in Number 19 in “Review Questions and Problems” for Chapter 6.

a. Indicate the critical chain on the diagram.

b. Which one of the two resources is the constraint?

c. Construct Gantt charts for this example based on the following heuristics: the shortest task time rule, the least slack rule, and the TOC heuristic.

d. Assume that the schedule indicates durations from which contingency reserve has been removed. Insert a project buffer and feeding buffers as required.