What is an example of a model type used for requirements?

A Business Process Model serves as an example of a model type used for requirements because it visually represents the processes within a business, including how activities are performed, who is responsible for each task, and how different components interact. This model helps to clarify the workflows and ensures that all necessary requirements are captured and understood by stakeholders. By illustrating the sequence of operations and decision points, the business process model aids in identifying gaps, redundancies, or inefficiencies, allowing for the clear specification of requirements related to process improvements or system functionalities.

The other options, while relevant in various contexts, do not function primarily as models for defining or capturing requirements. A Timeline Chart is typically used for tracking progress or scheduling rather than delineating requirements. A Marketing Plan focuses on strategies and tactics for achieving business goals in the market, which is distinct from requirement gathering. A Stakeholder Matrix is useful for analyzing stakeholder influence and interests, but it does not model processes or system functionalities as effectively as a Business Process Model does.