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Total slack and free slack manual#
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PRINCE2 2009 PRINCE2 2009 updates PRINCE2 2005 and covers the principles, the themes - business case, organisation, quality, plans, risk, change and progress.In addition there is a subtle difference between ‘float’ and ‘slack’. By definition any further delays will extend the end date of the project. If a task has a ‘total slack’ of 3 weeks it means that if the task is delayed by 3 weeks it will become part of the critical path. MS (Microsoft) project defines the above as ‘free slack’, with ‘total slack’ being the period for which delay will cause the project end date to change. There is always a limited supply of float. Hence, if it is available it will almost certainly be used. Note: Float is shared across the project. If Task ‘A’ is held up for three weeks then Task ‘B’ will be delayed by one week. In its simplest form for a finish-to-start relationship, there may be two weeks after the completion of Task ‘A’ and the start of Task ‘B’, and Task ‘B’ requires Task ‘A’ to finish. The float between two Tasks ‘A’ and ‘B’ is the amount of time Task ‘A’ can be delayed before it has a detrimental effect on the start or end point of Task ‘B’. It was used as part of the development of the Polaris submarine project. PERT ( Programme Evaluation and Review Technique) was developed around 1958 as one statistical means for estimating durations based upon optimistic, realistic and pessimistic values. Critical path part 4 reducing durations.PERT part 3 Cumulative Probability graph.Initial estimation high level plan second review.Initial estimation high level plan first review.The Project Management Knowledge Areas part 5.
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The Project Management Knowledge Areas part 4.The Project Management Knowledge Areas part 3.The Project Management Knowledge Areas part 2.Task flow charts Activity-on-Arrow networks arrow diagrams float v slack.Task flow charts Activity-on-Arrow networks arrow diagrams.Task flow charts Activity-on-Arrow networks.Task flow charts Activity-on-Node networks bubble diagrams.Project organisation The Project Office.
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What does a project management system consist of?.
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