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A project network diagram is a
Start and finish times are used to determine the critical path of a project. Activity float, or slack, time is used in project crashing.
Critical Path Mapping with Activity Network Diagrams
Understand how scheduling tools works-Draw network diagram yourself
Charts Project management techniques Schedule (project management) {{business-stub
graph
Graph may refer to:
Mathematics
*Graph (discrete mathematics), a structure made of vertices and edges
**Graph theory, the study of such graphs and their properties
*Graph (topology), a topological space resembling a graph in the sense of discre ...
that displays the order in which a project’s activities are to be completed. Derived from the work breakdown structure
A work-breakdown structure (WBS) in project management and systems engineering is a deliverable-oriented breakdown of a project into smaller components. A work breakdown structure is a key project deliverable that organizes the team's work into ...
, 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.
Techniques
Activity-on-Node
The Activity-on-Node (AON) technique uses nodes to represent individual project activities and path arrows to designate the sequence of activity completion. Nodes are labelled using information pertaining to the activity. According to Project Management, nodes should at least display the following information: * 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
The condition for a valid project network is that it doesn't contain anycircular reference
A circular reference is a series of references where the last object references the first, resulting in a closed loop.
In language
A circular reference is not to be confused with the logical fallacy of a circular argument. Although a circular ...
s.
Project dependencies can also be depicted by a predecessor table. Although such a form is very inconvenient for human analysis, project management software
Project management software (PMS) has the capacity to help plan, organize, and manage resource tools and develop resource estimates. Depending on the sophistication of the software, it can manage estimation and planning, scheduling, cost control an ...
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
*Bar chart
A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A vertical bar chart is ...
* Float (project management)
In project management, float or slack is the amount of time that a task in a project network can be delayed without causing a delay to:
* subsequent tasks ("''free float''")
* project completion date ("''total float''").
''Total float'' is assoc ...
* Gantt chart
A Gantt chart is a type of bar chart that illustrates a project schedule, named after its popularizer, Henry Gantt (1861–1919), who designed such a chart around the years 1910–1915. Modern Gantt charts also show the dependency relationshi ...
* Project management
Project management is the process of leading the work of a team to achieve all project goals within the given constraints. This information is usually described in project documentation, created at the beginning of the development process. Th ...
* Project planning
Project planning is part of project management, which relates to the use of schedules such as Gantt charts to plan and subsequently report progress within the project environment. Project planning can be done manually or by the use of project m ...
* Program evaluation and review technique
The program evaluation and review technique (PERT) is a statistical tool used in project management, which was designed to analyze and represent the tasks involved in completing a given project.
First developed by the United States Navy in ...
References
External links
Critical Path Mapping with Activity Network Diagrams
Understand how scheduling tools works-Draw network diagram yourself
Charts Project management techniques Schedule (project management) {{business-stub