Issue 18732: The notation for ExtensionPoint provides for an “explanation”, but the metamodel provides nowhere to store it. (uml25-ftf) Source: Microsoft (Mr. Steve Cook, stcook(at)microsoft.com) Nature: Uncategorized Issue Severity: Summary: The notation for ExtensionPoint provides for an “explanation”, but the metamodel provides nowhere to store it. Resolution: Revised Text: Actions taken: May 23, 2013: received issue Discussion: End of Annotations:===== s is issue # 18732From: Steve Cook The notation for ExtensionPoint provides for an .explanation., but the metamodel provides nowhere to store it.