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FM Backward Scanning

7.2 Forward and Backward Scanning

Note: if you cannot remember how to construct and analyse an activity network, revise notes for 7.1 Activity Networks.

Scheduling Problem

  • It is a problem of determining the minimum completion time for a project given its events.

Earliest Start Time (EST)

  • The earliest possible time that an activity can start.
  • The earliest finishing time of an activity = EST of an activity + Duration of an activity

Forward Scanning

  • Forward scanning is a methodical process for finding the earliest start time (EST) for each activity in an activity diagram. The process works as follows:
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