Critical Path Analysis Flashcards
What does CPA stand for?
Critical Path Analysis
What do you have to do to be able to undertake CPA?
- Break project down into constituents parts
- Define interdependencies between each activity
What does CPA entail?
- Creating a network
- Calculating/ estimating each activity duration
- Calculating total duration
- Finding the critical path
Which process calculates the timeframe in which activity takes place?
Time analysis
What are the five steps of time analysis?
- Create a network
- Estimate each activity duration
- Forward pass
- Backward pass
- Identify critical path
How do you carry out forward pass? (Calc)
Forward pass = (ES +duration) -1
How do you carry out backward pass? (Calc)
Backward pass = (LF - duration) + 1
How do you work out each activities’ free float during time analysis? (Calc)
Free float = (LF - EF) + (LS - ES)
What’s lead?
Negative lag
Why are constraints not good planning practice?
Because activities should ideally be linked through logic
What are the four key stages of managing project interfaces?
- Identification
- Coding
- Integration and impact analysis
- Impact resolution
What structures help identify project interfaces? (3)
- PBS
2.WBS - RACI
Who must be identified during project interface management?
Key stakeholders who are likely to impact the critical path
What are the two primary methods for integration and impact analysis?
- Internal integration
- External integration
What falls under internal integration?
- Interfaces in the same project schedule
- Usually within separate WBS node and or grouped by their activity codes
- Logically linked to corresponding predecessor/ successor
- Forcast dates driven by the other party
