Preliminary HDF5 Dimension documents

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Hi all,
    I've tried to condense my design information for extending HDF5 to have
dimension scales into something that is reasonably understandable.

    This document:
describes the concept of shareable objects in HDF5 and is important background
for the dimension scale design, which heavily relies on it.

    This document:
is a very rough description of where I'm at on the dimension scale design at
the moment.  The UML class diagrams describe things as I see them currently
and the large example at the end shows how many of the objects could be
stored in an actual file.

    I've also made available a presentation that I created last year for an
earlier version of the design:
The terms used in the examples diagrams are out of date and I've eliminated
the "tracking dimensions", but they are still useful for generally seeing how
the use cases would be stored in a file.  Also, the derived requirements are
still a good statement of what the dimension scales in HDF5 should support.

    Sorry that this is so late and so rough, I've been torn in several
directions during the last few weeks and haven't had enough time to completely
pull things together. :-/  I'll bring along printouts to share at the
HDF-EOS workshop in case Russ and Ed don't have time to get copies before
flying out.


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