Issue 8699: UML2-rtf issue: communication diagram (uml2-rtf) Source: TMNA Services (Mr. James A. Schardt, jim.schardt(at)tmnas.com) Nature: Uncategorized Issue Severity: Summary: UML2-rtf issue related to communication diagrams: Section 14.4 describes the sequence expression tied to messages on a communications diagram. However, the abstract syntax does not (as far as I can trace the diagram) model the sequence expression. This leaves the sequence expression semantics wide open. Some tools implement the sequence express but the concept of threads and nesting implicit in the expression syntax are undefined in the meta model. Recommendation: Add a SequenceExpresion element into the model associate it with message, and define it explicitly. Describe the semantics of nesting messages. Resolution: Revised Text: Actions taken: April 21, 2005: received issue Discussion: Disposition: Deferred to UML 2.4 RTF End of Annotations:===== m: "Jim Schardt" To: "'OMG Issues'" Subject: UML2-rtf issue: communication diagram Date: Thu, 21 Apr 2005 16:50:36 -0400 X-Mailer: Microsoft Outlook, Build 10.0.2627 X-OriginalArrivalTime: 21 Apr 2005 20:43:19.0210 (UTC) FILETIME=[C02B18A0:01C546B2] UML2-rtf issue related to communication diagrams: Section 14.4 describes the sequence expression tied to messages on a communications diagram. However, the abstract syntax does not (as far as I can trace the diagram) model the sequence expression. This leaves the sequence expression semantics wide open. Some tools implement the sequence express but the concept of threads and nesting implicit in the expression syntax are undefined in the meta model. Recommendation: Add a SequenceExpresion element into the model associate it with message, and define it explicitly. Describe the semantics of nesting messages. Cheers, jas James A. Schardt Chief Technologist Advanced Concepts Center, LLC Co-author: UML 2 for Dummies Phone: +1.770.649.4648 x317 Fax: +1.425.963.0984 Email: jim.schardt@acclearning.com Web: www.acclearning.com