Critical path (example): Start → (1) → A → (2) → C → (3) → E → End
PERT charts are ideal when:
She pointed to the UI track. "The UI team has been twiddling their thumbs waiting for the back-end. But according to this chart, they don't need to wait. They can start immediately. And because the UI track is shorter than the Back-end track, they have 'slack'—they can afford a delay. The Back-end cannot." pert chart template