Question

The project information for the custom order project of the Air Control Company is presented here. Draw a project network for this project. Compute the early and late activity times and the slack times. identify the critical pathID Activity Predecessor TimeA Order review None 2B Order standard parts A 15C Produce standard parts A 10D Design custom parts A 13E Software development A 18F Manufacture custom hardware C, D 15G Assemble B, F 10H Test E, G 5

Answer 1

Find project information, the diagram and table attached

Answer and Explanation:

Given the project information(attached) for the Air Control Company, we first draw our network diagram paying attention to the predecessors, example-activity A should come before every other activity .

In the table,

ES is early start time

EF is earliest finish time

LS is latest start time

LF is latest finish time

S is slack time

EF = ES + activity duration

LS = LF - duration

S= LF-EF

To calculate our critical path:

We follow all paths(add up their activity durations) from the network diagram down to the last activity

ABGH= 2+15+10+5

...

We select the path with the highest value which is:

ADFGH=2+13+15+10+5= 45