Which model notation is known for representing workflow along with roles and interactions?

The correct choice is Event-driven process chain (EPC). This model notation is specifically designed to illustrate business processes, with a focus on detailing the workflow while incorporating roles, interactions, and events. EPC diagrams provide a visual representation that clearly show how different elements within a process interact with each other, including the assignment of specific roles to tasks. This is particularly useful for organizations looking to optimize their business processes and improve efficiency.

EPC is known for its dual focus on both the flow of activities and the events that trigger them, making it a robust choice for process modeling in complex environments. It allows practitioners to capture not just what tasks need to be done, but also the context in which they are performed, enhancing understanding of roles and responsibilities within the process. This characteristic sets EPC apart, as it not only maps the steps but emphasizes the dynamic aspects of business processes.

In contrast, the other model notations serve different purposes. Unified Modeling Language (UML) is primarily used for software modeling and may not specifically capture workflow alongside roles and interactions in the way EPC does. Integrated DEFinition Methods (IDEF) also document processes but can be more focused on data flow or functions without the explicit emphasis on workflow. Flow charts provide a visual representation of processes