Issue 18657: MARTE issue: Observation does not allow specification of time value (marte-rtf) Source: Simula Research Laboratory (Mr. Bran Selic, selic(at)acm.org) Nature: Uncategorized Issue Severity: Summary: In the current UML metamodel, there is no link from the metaclass Observation to a ValueSpecificaiton that can be used to specify the time value of the Observation. As a result, it is not possible to directly assign time values to TimedInstantObservation or TimedDurationObservation. This means that it is not possible to refer to the time values of such observations in a time expression. One easy solution is to create an association from the TimedObservation stereotype to the UML ValueSpecification metaclass (role name "value"). This could then be used to store the time value associated with either kind of time observation. Resolution: Revised Text: Actions taken: April 12, 2013: received issue Discussion: End of Annotations:===== M-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:mime-version:sender:from:date:x-google-sender-auth :message-id:subject:to:cc:content-type; bh=kv97kxTwzrd4skzclMAkZ6/Ux7aA0WQ8QyeufO0H+Zs=; b=mygJBnoY2kWo4i75pIHTHqBBaWdvdpu1IOWwCqAQJ6jLsl9sG+QI+Bk3FAoJEmjhC2 1gAyLGFl9zkk9dG08RpG7NAJ+SiV8NPboLDuBadPgF2R5bkhlZRZ41iRmrGc4YN5n/3O xtC6wh8hmNzaFWTLazqjLWT69QBzDjbOURnMdDAlhDsv1M/kjTfvwV4WOmO6+1nfrd51 xLnwjrFUPIOzBskerVmtxQYWUNqmQF8undJON9RfkQXZfnN3s6yLZxzSVcsS2GFAQQxm M8JgmqKPOZakE9KeT3Rk8eOEVZbdiFZ+UdcCZh2qwMHIjsYkrrkQxyksTjBNvvDgzFSm HBCw== X-Received: by 10.220.8.75 with SMTP id g11mr7981183vcg.60.1365765227701; Fri, 12 Apr 2013 04:13:47 -0700 (PDT) Sender: bran.selic@gmail.com From: Bran Selic Date: Fri, 12 Apr 2013 07:13:07 -0400 X-Google-Sender-Auth: dL4QPh7SaI3dXmlF0XyKARjC5ic Subject: MARTE issue: Observation does not allow specification of time value To: "issues@omg.org" Cc: "sebastien.gerard" , Frederic Mallet X-Virus-Scanned: amavisd-new at omg.org X-Brightmail-Tracker: AAAAAA== X-Brightmail-Tracker: AAAAAA== In the current UML metamodel, there is no link from the metaclass Observation to a ValueSpecificaiton that can be used to specify the time value of the Observation. As a result, it is not possible to directly assign time values to TimedInstantObservation or TimedDurationObservation. This means that it is not possible to refer to the time values of such observations in a time expression. One easy solution is to create an association from the TimedObservation stereotype to the UML ValueSpecification metaclass (role name "value"). This could then be used to store the time value associated with either kind of time observation.