Network Diagrams and Schedule Analysis

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Network Diagrams and schedule analysis NETWORK DIAGRAMS ARE SCHEMATIC DISPLAYS OF PROJECT SCHEDULE ACTIVITIES AND THE INTERDEPENDENCIES BETWEEN THESE ACTIVITIES. WHEN DEVELOPED PROPERLY, THIS GRAPHICAL VIEW OF A PROJECT’S ACTIVITIES CONVEYS CRITICAL SCHEDULE CHARACTERISTICS REQUIRED TO EFFECTIVELY ANALYZE AND ADJUST SCHEDULES – THUS RESULTING IN ACCURATE AND FEASIBLE SCHEDULES. THIS DOCUMENT ADDRESSES WHAT SHOULD BE CONSIDERED IN THE DEVELOPMENT OF A NETWORK DIAGRAM, HOW NETWORK DIAGRAMS ARE CREATED, AND HOW THEY MAY BE ANALYZED TO IDENTIFY NECESSARY CORRECTIVE ACTIONS AND ENSURE OPTIMAL SCHEDULE DEFINITION. Network Diagram Creation Network diagrams can be created manually but are also available as project views in project…show more content…
For more detail regarding analytical techniques, which provide valuable information necessary for effective schedule definition, see PMBOK, fourth edition, Section 6.5.2. Most scheduling tools include features that allow utilization of these techniques with minimal effort. • Critical Path Method – The critical path method calculates the longest path of planned activities to the end of the project – the “critical path” – and the earliest and latest date that each activity can start and finish without extending the project. Any activity delay on the critical path impacts the planned project completion date. A network diagram visually conveys the critical path. This visibility into the critical path allows project managers to prioritize activities and take appropriate corrective actions to meet schedule deadlines. An understanding of the critical path also allows project managers visibility as to which schedule activities are flexible – that is, those activities that are not on the critical path. By looking at a network diagram, project managers can determine when they have float or slack, which is the amount of time that any given schedule activity can be delayed without causing a delay to the start date of subsequent