The exhibit shows a project schedule network diagram created using the Precedence Diagramming Method (PDM). In PDM, also known as Activity-on-Node (AON), activities are represented by boxes (nodes), and the arrows illustrate the logical dependencies between them. This method is a primary tool used in the Sequence Activities process to visualize the workflow and dependencies. The diagram clearly places activities like 'A', 'B', and 'C' inside the nodes, which is the defining characteristic of PDM.

1. Project Management Institute. (2017). A Guide to the Project Management Body of Knowledge (PMBOK® Guide) (6th ed.). Section 6.3.2.1

Precedence Diagramming Method

p. 188. The guide states

"The precedence diagramming method (PDM) is a technique used for constructing a schedule model in which activities are represented by nodes and are graphically linked by one or more logical relationships to show the sequence in which the activities are to be performed."

2. Project Management Institute. (2023). Process Groups: A Practice Guide. Section 4.3.2

Sequence Activities: Tools and Techniques

p. 58. This guide reinforces that PDM is the most common method used for creating project schedule network diagrams.

3. Vanhoucke

M. (2010). Measuring Time: Improving Project Performance Using Earned Value Management. Springer Science & Business Media. Chapter 2

Project Network Analysis

pp. 11-12. This academic text describes the Activity-on-Node (AON) or Precedence Diagramming Method (PDM) where nodes represent activities and arcs represent precedence relations

matching the exhibit. (DOI: 10.1007/978-1-4419-6942-1)