[gme-users] Why doesn't MetaGME address paradigm version changes automatically?

[Larry Howard]

GME's release notes state:
  "As your first step in the upgrade process, please export all your
  important projects (to XML format). Binary compatibility between
  different GME versions is not guaranteed."
We have recognized and addressed this issue for our GME-based product CAPE.  During installation, we distribute and register all paradigm versions that we currently support, and updaters are provided to address any discontinuities not handled by GME's native upgrading features.  We do this because it is an unreasonable expectation of our users to export all of their GME projects to XME prior to upgrading GME versions, especially when exporting to XME is used to address simply the unavailability of earlier versions of a paradigm.

GME distributes several paradigms as part of its installation.  Most important among these is the MetaGME paradigm that is an essential part of using GME for anything other than projects that use the other distributed paradigms.  It would be relatively straightforward for the MetaGME paradigm to follow the lead of CAPE in supporting migration between paradigm versions, since it is unlikely for this paradigm to incorporate such discontinuties as could not be handled by GME's native upgrading features or simple updaters.

Why not?!!

lph
--
Larry Howard
Sr. Research Scientist
Institute for Software Integrated Systems, Vanderbilt University
howardlp at isis.vanderbilt.edu   voice: (615) 343-7447 fax: (615) 343-7440

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