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

Event-driven process chain (EPC) is recognized for its ability to represent workflow alongside the roles and interactions within a business process. EPC diagrams effectively depict the sequence of events and activities while simultaneously capturing the various roles involved, making it clear who is responsible for each step in the process.

This notation visually integrates various elements such as events, functions, and organizational roles, allowing for a holistic view of how processes operate across different departments and stakeholders. The structured approach of EPC ensures that both the workflow and the relationships among participants are well defined, which is crucial for understanding and optimizing processes within an organization.

Other models, like UML, while useful for various types of modeling, do not focus specifically on the representation of workflows and roles in a business context. Integrated DEFinition Methods (IDEF) and flow charts also serve important roles in process mapping and analysis but lack the same level of emphasis on capturing dynamic interactions and roles in a workflow. Therefore, EPC stands out as the most suitable notation for representing these critical aspects of business processes.