Team's Response

Hi! Here is our rationale for our design of the class diagram in response to your issue.

Firstly, the font weight ("boldness") of the area you have circled (the *a and *f) is consistent with the font weight of the rest of multiplicity (for e.g., the 1s beside arrows).
Secondly, we kept all class names in red boxes un-bolded, and kept all multiplicities at the same font weight. Hence, we have maintained a consistent format for each element of the UML diagram.
Thirdly, since we have maintained consistency, there is no problem with the UML diagram. It is not wrong to have different font weights within the same diagram, as different font weights can help emphasise different aspects of the diagram as long as there is consistency in its usage.
Finally, the different font weights do not confuse the reader in any way due to our consistency in usage. In fact, using different font weights for different parts of the diagram can aid the reader by providing a visual differentiation between different parts of the diagram (e.g. it is easier for the reader to tell that something is a multiplicity, and not a class name).

Items for the Tester to Verify

Team chose [response.Rejected]

Reason for disagreement: [replace this with your explanation]