This critic is discussed under an earlier design issues category (see Section 14.4.3, “Change Names or Signatures in an Artifact” ).

Suggestion that a class that inherits or defines abstract operations must be marked abstract.

Suggestion that the specified class has no operations defined. This is required for the class to be useful in a design.

Suggestion that the artifact (class or interface) has too many operations for a good design, and is at risk of becoming a design bottleneck.