Draw the project management network

Question

Task: CPM/PERT

Problem 1:

                                                             Immediate          Duration

Activity                                                 Predecessors         (days)

a. organize layout team                                   -                       5

b. organize modification team                           -                       3

c. design personnel jobs                                  a                       2

d. set machinery in place                                 b                       3

e. connect utilities                                           c,d                     7

f. modify conveyor system                                e                      4

g. train personnel                                             e                      3

h. finishing touches                                           f                       5

i. run test lot                                                    g                      2

 

a. Draw the project management network.
b. Determine the project completion time.
c. What is the critical path?

Problem 2. A manufacturing company is planning to use PERT to setup a project for a new production line. For this project, they have established the following activities, precedence relationships, and time estimates in days:

                                                                        Most

                                      Immediate     Optimistic       Likely   Pessimistic

            Activity           Predecessors             t_o                   t_m             t_p

                 a                        --                     8                   10           12

                 b                        --                     6                    7              9

                 c                        b                     3                    3              3

                 d                        a                   10                  15            20

                 e                        d                     6                   7               8

                 f                         c                     9                  10            11

                 g                        d                     5                   7             10

                 h                        e,f                 14                  15            16

a. Draw the project management network.

b. Determine the project completion time.

c. What is the critical path?