Precedence Diagram Method
Encyclopedia
The precedence diagram method is a tool for scheduling
activities in a project plan
. It is a method of constructing a project schedule network diagram that uses boxes, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.
Key elements include determining predecessors and defining attributes such as
Scheduling (production processes)
Scheduling is an important tool for manufacturing and engineering, where it can have a major impact on the productivity of a process. In manufacturing, the purpose of scheduling is to minimize the production time and costs, by telling a production facility when to make, with which staff, and on...
activities in a project plan
Project plan
A project plan, according to the Project Management Body of Knowledge, isPRINCE2 defines:In some industries, particularly information technology, the term "project plan" can refer to a Gantt chart or other document that shows project activities along a timeline. While common, this use is inaccurate...
. It is a method of constructing a project schedule network diagram that uses boxes, referred to as nodes, to represent activities and connects them with arrows that show the dependencies.
- Critical tasks, noncritical tasks, and slack time
- Shows the relationship of the tasks to each other
- Allows for what-if, worst-case, best-case and most likely scenario
Key elements include determining predecessors and defining attributes such as
- early start date
- late start date
- early finish date
- late finish date
- duration
- WBS reference
See also
- Arrow diagramming methodArrow Diagramming MethodAn arrow diagramming method is a network diagramming technique in which activities are represented by arrows.It is used for scheduling activities in a project plan....
- Project networkProject networkA project network is a graph depicting the sequence in which a project's terminal elements are to be completed by showing terminal elements and their dependencies....
- Critical-path method
- Gantt chartGantt chartA Gantt chart is a type of bar chart that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements comprise the work breakdown structure of the project. Some Gantt charts...
- Program evaluation and review techniqueProgram Evaluation and Review TechniqueThe Program ' Evaluation and Review Technique, commonly abbreviated PERT, is a statistical tool, used in project management, that is designed to analyze and represent the tasks involved in completing a given project...
External links
- Precedence Diagram Method at Better Projects