Which notation is particularly useful in defining the order of activities and decision points in a process?

The flow chart is particularly valuable for defining the order of activities and decision points in a process because it visually represents a sequence of steps, making it easy for stakeholders to understand the flow of activities. Each shape in a flow chart has a specific meaning—ovals indicate start and end points, rectangles represent activities or tasks, diamonds signify decision points, and arrows demonstrate the flow from one step to another.

This kind of visual representation is crucial in process modeling as it allows for clear communication of how processes operate from beginning to end. It helps identify bottlenecks, redundancies, and areas for improvement by providing a straightforward overview of the workflow, which makes it easier to analyze the sequence and interrelations of various steps.

While the other notations, such as EPC (Event-driven Process Chain), UML (Unified Modeling Language), and Entity Relationship Diagram, serve specific purposes in process modeling or data structure representation, they do not focus primarily on the sequential flow of activities and decision points in the same intuitive manner that flow charts do. Consequently, the flow chart stands out specifically for its effectiveness in illustrating the order of operations within a process.