Project network
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A project network diagram, also known an activity network diagram (AND) is a graph that displays the order in which a project’s activities are to be completed. Derived from the work breakdown structure, the terminal elements of a project are organized sequentially based on the relationship among them. It is typically drawn from left to right to reflect project chronology.[1]
Techniques
[edit | edit source]Activity-on-Node
[edit | edit source]The Activity-on-Node (AON) technique uses nodes to represent individual project activities and path arrows to designate the sequence of activity completion.[2] Nodes are labelled using information pertaining to the activity. According to Project Management, nodes should at least display the following information:[3]
- Identifier
- Descriptive label
- Activity duration
- Early start time
- Early finish time
- Late start time
- Late finish time
- Activity float (slack)
Start and finish times are used to determine the critical path of a project. Activity float, or slack, time is used in project crashing.
Other techniques
[edit | edit source]The condition for a valid project network is that it doesn't contain any circular references.
Project dependencies can also be depicted by a predecessor table. Although such a form is very inconvenient for human analysis, project management software often offers such a view for data entry.
An alternative way of showing and analyzing the sequence of project work is the design structure matrix or dependency structure matrix.
See also
[edit | edit source]References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Kramer, S. W. & Jenkins, J. L. (2006). Understanding the basics of CPM calculations: what is scheduling software really telling you? Paper presented at PMI® Global Congress 2006—North America, Seattle, WA. Newtown Square, PA: Project Management Institute.
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]- Critical Path Mapping with Activity Network Diagrams
- Understand how scheduling tools works-Draw network diagram yourself
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