Which type of diagram is primarily used for process representation in SAP Signavio?

BPMN (Business Process Model and Notation) diagrams are the primary type of diagram used for process representation in SAP Signavio. This is due to BPMN's structured format that allows for clear and standardized visual representation of business processes. It provides a comprehensive set of symbols and notations that enable users to depict complex processes with various flow elements, decision points, and interactions in a way that is easily understandable across different stakeholders.

BPMN is widely adopted for process modeling due to its ability to communicate processes effectively between business analysts, technical developers, and business stakeholders, fostering a common understanding of workflow activities and system interactions. This capability makes it an ideal choice for process management solutions like SAP Signavio, which aim to improve organizational processes through clear visualization and communication.