FinalIE Study Guide

FinalIE Study Guide - Types of scheduling techniques and...

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Types of scheduling techniques and their respective advantages and disadvantages . Network Diagrams Elements Event Activity Span Time Network diagrams can be drawn in two formats: Activity on the arrow Activity in the box. Interpretation: Rule 1: After someone finishes an activity or reaches an event, he/she can proceed to the next activity as indicated by the arrows. Rule 2: To be able to start an activity or reach an event, someone must complete all activities and reach all events from which arrows entering that activity or event emanate. Network diagrams help project managers determine the following information and figure out what schedules are possible: Critical path Noncritical path Slack time Earliest start date Precedence diagram – another term for activity-in-the-box CPM charts – stands for critical path methods, uses estimates to allow time/cost trade-offs to be used. Gantt chart – used for illustrating schedules Dependency Diagram – another term for network diagram PERT chart a network diagram following activity-on-the-arrow. In addition, both CPM and PERT use slightly different ways of drawing the network of activities. Project managers can complete a first draft of a project schedule by using the following steps: Describe the objectives Detail the activities Identify immediate predecessors Estimate span times Identify intermediate and final dates that must be met. Project managers need to be aware of developing schedules by backing in. Backing in is the process of starting at the end of a project and working back toward the beginning, identifying activities and estimating durations that eventually will add up to the amount of time the project has been given. Meeting Time Constraints If a project must be completed in less time than the initial schedule, then: Recheck the original span time estimates. Consider using more experienced personnel. Consider different strategies for performing them. Fast tracking. Estimating Activity Duration: A span time estimate indicates how long it will actually take to perform an activity. A project manager may need additional resources. Like equipment, personnel and raw materials. A project manager may need fudge time, which is the time to make necessary adjustments to a project. Key-events report- A table that lists events and the dates on which you plan to reach them. Activities report- A table that lists activities and the dates on which you plan to start and end them. Gantt chart- A graph illustrating on a timeline when each activity will start, be performed, and end. Combined Milestone chart & Gantt chart - A graph illustrating on a timeline when activities will start, be performed, and end, as well as when selected events will be achieved Difference between activity-on-arrow and activity-on-node networks. The activity-on-the-go uses distinct symbols to describe each of the elements of the diagram
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FinalIE Study Guide - Types of scheduling techniques and...

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