What tme constraints is the project likely to encounter Historical Development

What tme constraints is the project likely to

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- What tme constraints is the project likely to encounter? Historical Development of Project Schedules In the 1950s 2 project scheduling methods were developed - The Critcal Path Method(CPM) - A technique used to determine the amount of scheduling fexibility(foat) on various network paths in the project schedule network and to determine the minimum total project duraton - Program Evaluaton and Review Technique(PERT) - PERT enabled project managers to estmate the most likely amount of tme needed to complete a project - Precedence Diagramming Method(PDM) is a technique in which the scheduled actvites Downloaded by Shaun Mlangeni ([email protected]) lOMoARcPSD|3347332
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are represented by nodes and are graphically linked by one or more logical relatonships to show the sequence in which the actvites are performed How Project Schedules are Limited and Created 5 factors may limit how fast a project can be completed 1. Logical order The logical order in which actvites need to be completed 2. Actvity duraton How long each individual actvity will take to complete 3. Resource availability How many key resources are available at specifc tmes in the project 4. Imposed dates 5. Cash fow Projects may not start untl the budget is approved Defne Actvites - As teams defne actvites they need to be careful not to omit any work elements - In additon to the actvity list the project milestones should also be listed - A milestone is an important point in a project schedule that the project sponsor and manager want to use as a checkpoint Sequence Actvites - Determining the logical order in which actvites must be accomplished - Entails determining the predecessor and successor relatonships among the project actvites - Routnely performed for traditonal projects and performed for each iteraton of agile projects - Predecessor actvites and successor actvites are identfed and the facilitator places the SA afer the PA and draws an arrow to show the relatonship - Dependencies can be either mandatory or discretonary - Mandatory dependency – Logical relatonship between actvites that must happen - Discretonary dependency – Logical relatonship between actvites that is considered desirable, usually based upon experience or best practce Leads and Lags - Lead is a modifcaton of a logical relatonship that allows an acceleraton of the successor actvity - Lag is a modifcaton of a logical relatonship that directs a delay in the successor actvity Alternatve Dependencies - Finish-to-fnish(FF) – The logical relatonship where completon of work of the successor actvity cannot fnish untl the completon work of the predecessor actvity - Start-to-start(SS) – A logical relatonship where initaton of the work of the successor schedule actvity depends upon the initaton of the work of the predecessor schedule actvity Downloaded by Shaun Mlangeni ([email protected]) lOMoARcPSD|3347332
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- Start-to-fnish(SF) – The logical relatonship where completon of the successor schedule actvity is dependent upon the initaton of the predecessor schedule actvity
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