INDEPENDENT PRACTICE
Critical Path Analyser
Work through the scans, identify the critical path, then calculate total float.
01 — Forward Scan
Enter the earliest event times in the left boxes, working from Start to Finish.
02 — Backward Scan
Enter the latest event times in the right boxes, working from Finish to Start.
03 — Critical Path
Identify the path with zero float. Click the activities to highlight the critical path.
04 — Total Float
Calculate each activity's total float using the formula selector.
You're finished
Precedence Table
Use the table to construct the activity-on-arrow network.
| Activity | Immediate predecessor(s) | Duration |
|---|
Select an activity, then drag from an event into blank space. Drop onto an existing event to join paths.
Select an activity, then drag from Start into the blank workspace.