Construction Management Practice Exam 2025 - Free Construction Management Practice Questions and Study Guide

Activity on arrow (AoA) and activity on node (AoN) are both representations used in network diagramming, which is a method of scheduling that focuses on the logical relationships among project activities. In network scheduling, each activity is represented as a node or an arrow, indicating the sequence and dependencies between tasks.

The network method allows project managers to visualize the entire project as a series of interrelated tasks, enabling them to identify the critical path, which is the longest sequence of dependent activities and determines the shortest time in which the project can be completed. This method is particularly useful for complex projects where understanding the relationships between tasks is essential for effective planning and execution.

Other methods like bar charts focus more on the timeline and the duration of tasks rather than the relationships and dependencies, matrix methods organize tasks based on different criteria, and linear balance focuses on scheduling in contexts that require certain work to be completed at a steady pace. Therefore, the correct choice reflects the interconnected and systematic nature of activity on arrow and activity on node approaches within network scheduling.