What type of event marks the beginning of a process in BPMN?

The type of event that marks the beginning of a process in BPMN (Business Process Model and Notation) is referred to as a Start Event. This is a fundamental concept in BPMN, as it defines the point at which a process initiates and can trigger the execution of the defined tasks and flows within that process.

The Start Event serves as an entry point for the process, allowing process participants and stakeholders to understand where the activity begins. It can be represented in various ways, such as a simple circle, and can be accompanied by various triggers or conditions that specify how the process starts, such as a message received, a timer reaching a specific duration, or a specific signal.

Understanding this concept is crucial for properly designing and interpreting BPMN diagrams, especially for analysts and project managers who need to communicate workflows effectively. The other options represent process stages or different types of events that play their respective roles at distinct points in the process lifecycle but do not signify the initiation of a process.