WJEC A-Level Business 601-5238-2
Enterprise and Starting a Business
Markets and Market Research
Marketing
People in Business
Operations Management
Business Finance and Accounts
Business Analysis and Decision-Making
Strategy and Implementation
Managing Change and Risk
The External Environment
Business Analysis and Decision-Making
Critical path analysis
- 2 things to know
- A2 Unit 3
Overview
Critical path analysis, earliest start time of an activity and how earliest start times are calculated.
What you need to know
Answer each one before you reveal it.
What is meant by the earliest start time of an activity?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is critical path analysis?
Model answer
Critical path analysis is a technique for planning a project by identifying the order of its activities and the shortest time in which the whole project can be completed.
- 2
State two things critical path analysis tells a project manager.
Model answer
The minimum duration of the whole project, and which activities cannot be delayed without delaying the project.
- 3
Define the critical path.
Model answer
The critical path is the sequence of activities with no spare time, so that any delay to one of them delays the entire project.
- 4
What is meant by the earliest start time of an activity?
Model answer
The earliest start time is the soonest an activity can begin, once every activity that must precede it has been completed.
- 5
Explain how earliest start times are calculated.
Model answer
They are worked out forwards from the start of the network, and where several activities lead into a node the highest finishing time is taken.
- 6
What is meant by the latest finish time of an activity?
Model answer
The latest finish time is the latest an activity can be completed without delaying the whole project.
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