Issue 18228: UML2.5 issue : missing constraints on aggregation / composition (uml25-ftf) Source: Microsoft (Mr. Steve Cook, stcook(at)microsoft.com) Nature: Uncategorized Issue Severity: Summary: As far as I know, a Property may only be marked as an aggregation or composition if either (a) it is not an association end or (b) it is the end of a binary association and the other end is not marked as an aggregation or composition. The spec does not actually say this clearly, and there is no OCL to enforce it. Resolution: Revised Text: Actions taken: October 25, 2012: received issue Discussion: End of Annotations:===== m: Steve Cook To: "issues@omg.org" Subject: UML2.5 issue : missing constraints on aggregation / composition Thread-Topic: UML2.5 issue : missing constraints on aggregation / composition Thread-Index: Ac2y0Dh0j7gieU69QsqqN0QLAnC91g== Date: Thu, 25 Oct 2012 16:47:44 +0000 Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.166.18.103] X-Forefront-Antispam-Report: CIP:131.107.125.37;CTRY:US;IPV:CAL;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(49866001)(53806001)(54356001)(51856001)(16826001)(20776001)(50986001)(54316001)(3846001)(4196001)(1076001)(74662001)(16696001)(74502001)(47976001)(4396001)(47736001)(31966008)(33656001)(16406001)(15202345001)(5343635001)(512954001)(44976002)(8716001)(5343655001)(47446002)(46102001)(316001)(3556001)(3746001);DIR:OUT;LANG:en; X-OriginatorOrg: microsoft.onmicrosoft.com X-Forefront-PRVS: 0645BEB7AA As far as I know, a Property may only be marked as an aggregation or composition if either (a) it is not an association end or (b) it is the end of a binary association and the other end is not marked as an aggregation or composition. The spec does not actually say this clearly, and there is no OCL to enforce it. -- Steve