PMP - Time Management

• 1. Mandatory / hard logic
• 2. Discretionary / preferred, preferential or soft logic
• 3. External

Total Float - the amount of time an activity can be delayed without affecting the project finish date

Free Float - the amount of time an activity can be delayed without delaying the early start of any immediate successor activities

• 1. Finish to start
• 2. Finish to Finish
• 3. Start to Start
• 4. Start to Finish

• CPM = Critical Path Method
• - uses a single duration estimate
• - focus is on calculating float to determine schedule flexibility

• PERT = Program Evaluation and Review Technique
• - uses three time estimates to calculate a weighted average duration estimate
• - allows calculation of variance so that it is possible to assess schedule risk
• - uses a calculated expected value v. a single most likely estimate