On a related note, PERT charts aren’t very flexible – it’s not the easiest thing in the world to make modifications to a complex PERT chart once you’ve set out an initial order of events.

Step 2: Make an Excel Bar Chart To start to visualize your data, you’ll first create an Excel stacked bar chart from the spreadsheet. Select the “Start date” column, so it’s highlighted.

In addition, those who create PERT charts can now zoom in one them, display subtasks, change the color and shape of objects and create new objects by command-dragging.