Which capabilities are needed in a modeling tool for creating traceable models in RE?

For creating traceable models in Requirements Engineering (RE), having the capability for model elements to be stored under version control is crucial. Version control allows teams to maintain a history of changes made to the models, facilitating collaboration and ensuring that all modifications are well-documented. This historical tracking is essential for traceability, as it helps to link requirements to their statuses, changes, and related components over time.

In the context of traceability, this capability supports the ability to revert to previous versions if needed, track who made changes, and understand the evolution of requirements and their implementation. Such control is vital in environments where requirements often change, as it ensures that all stakeholders can trace back through the modifications and understand the current state of requirements based on their development over time.

Other options, such as checking conformity with UML definitions, exporting in XML format, and requiring each model element to have an ID, while valuable for ensuring consistency and facilitating exchanges, do not directly address the need for tracking changes and maintaining a complete record of modifications, which is central to traceability.