The R&D; department is planning to bid on a large project for the development of

Question

The R&D; department is planning to bid on a large project for the development of a new communication system for commercial planes. The accompanying table shows the activities, times, and sequences required: b. What is the critical path? A-C-F-G-I A-B-E-I A-D-F-G-I c. Suppose you want to shorten the completion time as much as possible, and you have the option of shortening any or all of B. C, D. and G each one week. Which would you shorten? CD C D G d-1. What is the new critical path? A-C-F-G-l A-D-H-l A-B-E-l A-D-F-G-l d-2. What is the earliest completion time for the new critical path?

Explanation / Answer

Answer b : By drawing network diagram, we can find critical path. Here there are two critical paths, A-C-F-G-I and A-D-F-G-I . Critical path duration = 18 weeks.

Answer c : since critical paths carries activities C,D, and G , each of three activities reduced by 1 week.

Answer d-1 : When C,D and G activities are reduced by 1 week, new critical paths are A-C-F-G-I and A-D-F-G-I.

Answer d-2 : earliest completion time for new critical path = 16 weeks

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