Which process model notation is designed to identify hand-offs in a process?

The swim lane diagram is specifically designed to illustrate the flow of a process while clearly defining the roles and responsibilities of various actors involved in that process. Each "lane" in the diagram represents a different entity, such as a department or individual, and shows how tasks and activities are handed off between these entities. This visual representation makes it easy to identify where transitions or hand-offs occur, which is crucial for understanding the interaction between different parts of a process.

In contrast, other process model notations, such as event-driven process chains and flow charts, may not distinctly separate roles and responsibilities in the same way. Event-driven process chains focus more on events and functions rather than the roles involved. Flow charts provide a more general view of the steps in a process but do not inherently show ownership or responsibility for those steps, making it harder to pinpoint hand-offs. Integrated DEFinition Methods (IDEF) are more structured and focused on data modeling rather than the clear visual representation of responsibilities, which is another key difference. Therefore, swim lane diagrams stand out as the most appropriate choice when the goal is to identify hand-offs in a process visually.