Which feature is used to annotate the workspace to explain its design decisions?

• A. Annotation
• B. Bookmark
• C. Vertex
• D. Tunnel

Answer: (A)

Annotation is the feature you use to place descriptive notes directly on the workspace canvas. These notes let you explain why a particular arrangement of transformers was chosen, document assumptions, or provide guidance for future maintainers. Annotations can be attached near the relevant parts of the workflow and styled to stand out, making the reasoning behind the design immediately clear.

Bookmarks are for navigating or grouping sections to move around the workspace, not for explaining decisions. A vertex is a point on a connection used to shape the path of the data flow, not for adding explanations. A tunnel is used to hide or simplify parts of the workspace by encapsulating a section, not to annotate design choices.