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Lesson 100

Network/critical path analysis - part 3

Hugo Newman

Taught by Hugo Newman · AI tutor support included

You'll learn how to identify the critical path in a project network and calculate activity float using a precise formula. The critical path is the longest sequence of activities that cannot be delayed without extending the total project time—and understanding which activities have zero float is essential for effective

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In this lesson

  1. 0:00 Understanding the critical path concept
  2. 0:56 Why activities have slack or float
  3. 2:09 Calculating float using the formula
  4. 4:19 Float calculations for all activities
  5. 5:38 Using float to identify the critical path
  6. 6:42 Dummy activities and network rules
  7. 8:28 Benefits and applications of critical path analysis

About this lesson

project planning. In this video, you'll work through a step-by-step calculation of float for each activity using the formula: LST of subsequent node minus activity duration minus earliest starting time of previous node. You'll also discover how to use critical path analysis to prioritise resources, manage project timelines, and recognise when dummy activities are needed in your network diagram. This technique is directly relevant to Performance Management and Strategic Business Leader case studies, where project planning and resource allocation are core assessment areas.

Duration: 9m

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