Which process model notation is maintained by the Object Management Group?

The correct answer is Unified Modeling Language (UML), which is maintained by the Object Management Group (OMG). UML serves as a standardized modeling language that provides a set of graphic notation techniques to create visual models of object-oriented software systems. It offers a way to visualize the design of a system, helping to represent different aspects such as structure, behavior, and interactions in software engineering. This formal specification and maintenance by OMG ensures that UML remains a widely recognized and utilized tool in the software development industry.

On the other hand, Business Process Model and Notation (BPMN) is specifically tailored for business process modeling and is also maintained by OMG, but it is distinct from UML in its purpose and application. Event-driven process chains (EPC) serve a different modeling perspective primarily in the context of business processes, and Value Stream Mapping (VSM) is generally used to visualize production processes to optimize efficiency. Each of these alternatives serves unique functions in various fields but does not fall under the same comprehensive umbrella of object-oriented software modeling.