Final answer:
To construct a project activity network using AOA, list all activities, identify precedences, draw and label nodes and arrows, and include dummy activities as needed to maintain logical relationships. This helps in visualizing dependencies and identifying the critical path.
Step-by-step explanation:
Constructing a Project Activity Network
To construct a project activity network using the Activity-on-Arrow (AOA) methodology, you'll need to follow these steps:
- List all the activities involved in the project.
- Identify the precedence relationships between these activities (which activities must precede others).
- Draw circles (nodes) to represent the start and end points of activities. Label these appropriately with letters or numbers.
- Draw arrows (activities) from the start node to the end node of each activity. The direction of the arrow indicates the sequence of the activity.
- If two or more activities originate from a single node but must not start simultaneously due to dependency on a common preceding event, introduce dummy activities to maintain the proper logical relationships. Dummy activities are represented by dotted arrows and have no duration.
The AOA network helps in visualizing the project's activities and their dependencies, enabling the identification of the critical path, the sequence of project activities that directly affect the project's completion time.