Quality Glossary Definition: Arrow diagram Show Also called: activity on arrow diagram, activity network diagram, network diagram, activity chart, node diagram, CPM (critical path method) chart Variation: PERT (program evaluation and review technique) chart An arrow diagram is defined as a process diagramming tool used to determine optimal sequence of events, and their interconnectivity. It is used for scheduling and to determine the critical path through nodes. The arrow diagramming method shows the required order of tasks in a project or process, the best schedule for the entire project, and potential scheduling and resource problems and their solutions. The arrow diagram lets you calculate the "critical path" of the project—the flow of critical steps where delays can affect the timing of the entire project and where addition of resources can speed up the project. When to Use an Arrow Diagram
Arrow Diagram ProcedureMaterials needed: Sticky notes or cards, marking pens, and large writing surface (newsprint or flipchart pages). Drawing the Network
Scheduling: Critical Path Method (CPM)
Figure 5: Completed Arrow Diagram Example Adapted from The Quality Toolbox, Second Edition, ASQ Quality Press. What is burst activity and merge activity?Merge event – When more than one activity comes and joins an event such an event is known as merge event. 2. Burst event – When more than one activity leaves an event such an event is known as burst event.
What is merge activity?The Merge activity is used in conjunction with the Branch activity, which allows two users to act on different areas of the work item in parallel. After the users have completed their work, the Merge activity synchronizes the incoming branches.
Which activities must immediately follow this activity?Activities that must be completed immediately before an activity are called predecessor activities. 2. Activities that must follow immediately after an activity are called successor activities.
What are burst activities?– Burst Activity: an activity that has more than one activity immediately following it (more than one dependency arrow flowing from it).
|