From the course: Learning Gantt Charts

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Drawing double-critcal paths, overlap, lead, and lag

Drawing double-critcal paths, overlap, lead, and lag

From the course: Learning Gantt Charts

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Drawing double-critcal paths, overlap, lead, and lag

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- Next, I want to explain a few minor complications that can happen when you're finding and drawing your critical path. For a start, what if there are two critical paths? This happens when you have two equal longest paths through your network diagram. Two tasks, or rows of tasks, that take the same time. And the answer is, it's easy. You just draw them one above the other, like this. Next, what if you have tasks that you want to overlap a little in order to save time? Overlap can be just shown as it is. In my example here, I'm modifying my buildings while still waiting for the last furniture quotations to come in. You just show the rectangles overlapping. But often a better way to show overlap is to granulate the task, which means cut them up into smaller parts. The reason for this is that when you overlap things, you need to know exactly when the second one can start. At what point, halfway through the first task, can…

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