[QUANTITY] Data Model for Quantity v0.5 - analogue absurdium

[David Berry]

Martin,

> As I understand it Quantity is now being defined as an interface (which
> is good), but it is becoming an extremely heavy interface defining so
> many things in such detail that it's really just becoming an
> all-encompassing container class, reintroducing the inheritance problems.


That may be just a perception issue. Admittedly the document makes it
look fairly heavy, and I suspect the models presented by the interface and
the "first cut"  serialisation examples may appear to lean in different
directions (although Brian may not agree!), but non-the-less, all the
quantity model currently covers is how to record meta-data describing the
phenomenon measured by the Quantity, and the coordinate axes used to
locate each sampled value.

Other things, accuracy, quality, etc, are currently "to be decided".

David


----------------------------------------------------------------------
Dr David S. Berry    (dsb at ast.man.ac.uk)

STARLINK project		 |	Centre for Astrophysics
(http://www.starlink.ac.uk/)	 |	University of Central Lancashire
Rutherford Appleton Laboratory	 |	PRESTON
DIDCOT				 |	United Kingdom
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