| Term | Definition |
|---|
| PERT | is a network analysis technique used to estimate project duration when there is a high degree of uncertainty about the individual activity duration estimates |
| PERT | uses probabilistic time estimates based on using optimistic, most likely, and pessimistic estimates of activity durations |
| Program Evaluation and Review Technique | What is PERT? |
| Project schedules | grow out of the basic document that initiate a project |
| Project charter | includes start and end dates and budget information |
| Scope statement and work break down | help define what will be done |
| Activity Definition | involves developing a more detailed WBS and supporting explanations to understand all the work to be done so you can develop realistic duration estimates |
| When - Activity Sequencing | Involves reviewing activities and determining dependencies |
| Mandatory dependencies | inherent in the nature of the work; hard logic |
| Discretionary dependencies | defined by the project team; soft logic |
| External dependencies | involve relationships between project and non-project activities |
| Dependencies | You must determine ___________in order to use critical path analysis |
| Arrow Diagramming Method (ADM) | Also called activity-on-arrow (AOA) project network diagrams • Activities are represented by arrows • Nodes or circles are the starting and ending points of activities • Can only show finish-to-start dependencies |
| Precedence Diagramming Method (PDM) | Activities are represented by boxes • Arrows show relationships between activities • More popular than ADM method and used by project management software • Better at showing different types of dependencies |
| Gantt charts | provide way to displayproject schedule information by 1) listing project activities and their corresponding 2) start and 3) finish dates in a 4) calendar format Symbols include: 1. A black diamond: milestones or significant events on a project with zero duration 2. Thick black bars: summary tasks 3. Lighter horizontal bars: tasks 4. Arrows: dependencies between tasks |
| CPM | is a project network analysis technique used to predict total project duration |
| A critical path for a project | is the series of activities that determines the earliest time by which the project can be completed,is the longest path through the network diagram and has the least amount of slack or float |
| Finding the Critical Path | 1. First develop a good project network diagram 2. Add the durations for all activities on each path through the project network diagram 3. The longest path is the critical path |
| Importance of the Critical Path | If one or more activities on the critical path takes longer than planned, the whole project schedule will slip unless corrective action is taken • Misconceptions: – The critical path is not the one with all the critical activities; it only accounts for time. – There can be more than one critical path if the lengths of two or more paths are the same – The critical path can change as the project progresses |
| Knowing the critical path | helps you make schedule trade-offs |
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