Each operation follows a certain syntax which is built up using the following structure:
- Visibility: see Attribute Syntax (UML Class)
- Name: see Attribute Syntax (UML Class)
- Parameter: similar notation to attributes:
In addition, a direction may be specified:
in: input parameter When the operation is used, a value is expected from this parameter.out: output parameter After the execution of the operation, the parameter has adopted a new value.inout: combined input / output parameter
- Type: type of the return value