I want to define the critical path of my project by using a PERT diagram. Let's take a trivial example to show you my problem.
I have 4 tasks defined like this:
- Task A with a duration of 1 day without any antecedent ;
- Task B with a duration of 2 days without any antecedent ;
- Task C with a duration of 2 days with tasks A and B as antecedents ;
- Task D with a duration of 2 days with task C as antecedent.
I get this critical path: B -> C -> D. The problem is: what if the tasks A and B need more than all my resources? The task B will fall behind whatever it happens so the task A have to be present in the critical path, right?
How can I handle it?