Andrew Grimshaw on 2010-03-20

• Propose requirement with title  'Backwards compatibility (on-the-wire) not a precise requirements, conceptual backward compatibility a must - new portType - new compilation anyway but general concept should be kept.'

Etienne Urbah's position on 2010-04-07

• For clarity, I suggest to change the original title to
  'Execution Service MUST provide conceptual backward compatibility (perhaps requiring recompilation of client), even if it does NOT provide on-the-wire backward compatibility (which would avoid recompilation).  For example, specifications SHOULD NOT overload existing portTypes or operations, but keep them, remove only unused existing ones, and add new portTypes or operations when necessary'
• Anyway, I vote FOR this requirement

Morris, Balazs and Etienne on 2010-04-27

• Spreadsheet ID = 153

Amsterdam meeting on 2010-04-29

• Open  (still unclear)