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| Rule: Unnamed | Category: Completeness |
| Severity: 1-high | Applies to: all areas |
Operation has no name.
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| Rule: Capitalized | Category: Naming |
| Severity: 3-low | Applies to: all areas |
| Operation names should start with a lower case letter. This is a recommended style guideline in the UML standards [OMG03], [OMG05]. In many programming languages, constructors have the same name as their class, thus starting with upper case letters. Therefore, operations with the same name as their class are not reported. | |
| Rule: Keyword | Category: Naming |
| Severity: 2-med | Applies to: design |
| Operation name is a Java or C++ keyword. Using programming language keywords as operation names will cause problems during code generation. Find another name for the operation.
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| Rule: AbstractOp | Category: Correctness |
| Severity: 1-high | Applies to: all areas |
| Operation is abstract, but its owner class is not abstract. In many programming languages, a class is abstract if at least one of its operations is abstract. Either make the owner class abstract, or provide an implementation for the operation. | |
| Rule: LongParList | Category: Style |
| Severity: 2-med | Applies to: all areas |
| The operation has a long parameter list with five or more parameters. Long parameter lists are difficult to use, and likely to change more frequently. Change the design to pass one or more objects to the operation that encapsulate the required parameters. Note: the rule only considers in, out, and inout parameters; the return parameter (if any) is not counted.
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| Rule: MulReturn | Category: Correctness |
| Severity: 1-high | Applies to: all areas |
| The operation has more than one return parameter. Many programming languages only support one return parameter per operation. Change some return parameters to out or inout parameters, or return one object that encapsulates all return parameters.
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| Rule: DupName | Category: Naming |
| Severity: 1-high | Applies to: all areas |
| The operation has two or more parameters with identical names. Parameters must have unique names to distinguish them. This is a WFR of the UML.
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| Rule: Query | Category: Style |
| Severity: 2-med | Applies to: all areas |
| The operation name indicates a query, but it is not marked as a query. The operation name suggests this is a getter (see Getters). Mark the operation as query to indicate that it does not change the owner's state. | |
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| Appendix C.4 "Property Rules" | Contents | Appendix C.6 "Parameter Rules" |