Issue 15988: The fUML subset should include central buffer nodes and data stores (fuml-rtf)
Source: Ivar Jacobson International AB (Mr. Ed Seidewitz, eseidewitz(at)ivarjacobson.com)
Nature: Uncategorized Issue
Severity: 
Summary: Specification: Semantics of a Foundational Subset for Executable UML Models, FTF Beta 3 (ptc/10-03-14)

 

Unlike pins, the tokens in central buffer nodes and data stores (which are kind of central buffer node) are not consumed when they are accessed. This allows a value to be, e.g., stored in a data store and used repeatedly in a loop that is modeled directly using flows rather than using a loop node. It is more common to create loops using flows than structured nodes when drawing graphical activity diagrams, and fUML should provide reasonable execution semantics for such models using central buffer nodes and data stores.


Resolution: The RTF agrees that this is an issue worth considering, but, due to lack of time, decided to defer its resolution to a future RTF working on this specification.
Revised Text: None
Disposition:	Deferred

Revised Text: 
Actions taken:
January 26, 2011: received issue
January 7, 2013: deferred
Discussion: 


End of Annotations:=====
ubject: The fUML subset should include central buffer nodes and data stores
Date: Wed, 26 Jan 2011 12:30:02 -0500
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Thread-Topic: The fUML subset should include central buffer nodes and data stores
thread-index: Acu9fqn84jHW/qSrQDitrqKiCMEvQg==
From: "Ed Seidewitz" <ed-s@modeldriven.com>
To: <issues@omg.org>


Specification: Semantics of a Foundational Subset for Executable UML Models, FTF Beta 3 (ptc/10-03-14)

 

Unlike pins, the tokens in central buffer nodes and data stores (which are kind of central buffer node) are not consumed when they are accessed. This allows a value to be, e.g., stored in a data store and used repeatedly in a loop that is modeled directly using flows rather than using a loop node. It is more common to create loops using flows than structured nodes when drawing graphical activity diagrams, and fUML should provide reasonable execution semantics for such models using central buffer nodes and data stores.