How many operands can a par operator contain?

In modeling terms, a par operator—often used in UML and SysML—represents a parallel construct that can execute multiple operations simultaneously. The par operator is designed to support concurrency, meaning it allows for actions or processes to occur at the same time. As such, it can encompass two or more operands, indicating that you can have multiple parallel actions or components represented within this construct.

When you think about the nature of parallel execution, it is inherently intended to involve multiple elements working independently but concurrently, thus reinforcing the need for a structure that can accommodate more than one operand. Additionally, the flexibility of having multiple operands allows for greater expressivity when modeling complex systems, mirroring the real-world behavior of concurrent processes.

Hence, the assertion that a par operator can contain two or more operands accurately captures its functionality and purpose in system modeling, allowing practitioners to depict complex relationships and interactions effectively.