Issue 17904: Location: 9.6.3 Operations p 127 Undefined ? (uml25-ftf) Source: Soluta.net (Dr. Adriano Comai, acomai(at)soluta.net) Nature: Clarification Severity: Minor Summary: this sounds peculiar. Intentionally undefined by the modeler, or by the authors of the specification. In think this should say The behavior of an invocation of an Operation when a precondition is not satisfied is not defined in UML Resolution: Revised Text: Actions taken: September 26, 2012: received issue Discussion: End of Annotations:===== s is issue # 17904 Problem 9.038 Severity: Minor Type: Clarifications Location: 9.6.3 Operations p 127 Title: Undefined ? Summary: this sounds peculiar. Intentionally undefined by the modeler, or by the authors of the specification. In think this should say The behavior of an invocation of an Operation when a precondition is not satisfied is not defined in UML Source: Adriano Comai