Rule 15.0 - Required or Adviosry?

[jbezem]

IMHO, specifying the preamble text as rule "15.0" is somewhat confusing. I would suggest to change its wording to clearly identify the preamble to be a rule.
At the same time, the wording is clear: "... the syntax for switch statements as defined by MISRA-C and is normative". To me this means that 15.0 is required, possibly even stronger than normal 'required' rules. In my own responsibility, I would not allow deviations from rule 15.0, not even when commented heavily or using a genarlly accepted deviation procedure.
If such a deviation seems necessary, other contsructs (like chained if ... else if ... else) might be better suited for the occasion.

Best regards,

Johan