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

[Peter Volgyesi]

Larry,
 
The main reason we highly recommend the export/import method when upgrading
is the possible incompatibility between the MGA file formats (note: not
because of some paradigm change but the change of the file format itself).
This kind of problem has not be handled by CAPE, and it is far from
straightforward to provide such a migrating tool (this tool would have to
access different MGA versions on the very same computer).
--
peter
 


  _____  

From: gme-users-bounces at list.isis.vanderbilt.edu
[mailto:gme-users-bounces at list.isis.vanderbilt.edu] On Behalf Of Larry
Howard
Sent: Friday, April 09, 2004 4:51 PM
To: gme-users at list.isis.vanderbilt.edu
Subject: [gme-users] Why doesn't MetaGME address paradigm version changes
automatically?


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
 <mailto:howardlp at isis.vanderbilt.edu> howardlp at isis.vanderbilt.edu   voice:
(615) 343-7447 fax: (615) 343-7440

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://list.isis.vanderbilt.edu/pipermail/gme-users/attachments/20040413/5def5888/attachment.htm