Cube/ImageDM - Comments on Observation-Dataset Overview diagram

[Arnold Rots]

Then I agree with Pat's approach.
"Dataset" is very misleading if it is to refer to a single file.
That, indeed, is a DataProduct and the name ought to be changed.

That said, though, you may want to consider whether all possible
data products are covered by the derived classes. The parent class
may still be needed to be used as a generic type for unclassified
data products.

  - Arnold

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Arnold H. Rots                                          Chandra X-ray
Science Center
Smithsonian Astrophysical Observatory                   tel:  +1 617 496
7701
60 Garden Street, MS 67                                      fax:  +1 617
495 7356
Cambridge, MA 02138
arots at cfa.harvard.edu
USA
http://hea-www.harvard.edu/~arots/
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On Tue, May 13, 2014 at 10:50 AM, CresitelloDittmar, Mark <
mdittmar at cfa.harvard.edu> wrote:

>
> Arnold,
>
>
> On Tue, May 13, 2014 at 10:03 AM, Arnold Rots <arots at cfa.harvard.edu>wrote:
>
>>
>>
>>
>> Because I don't think ObsDataset is something anyone would instantiate..
>>> It must be some "kind" of dataset to be useful,  an ImageDataset,
>>> SpectralDataset, or even for
>>> the DAL services, the particular QueryResponse.
>>>
>>
>> I'm not so sure. An ObsDataset could be a collection of ImageDataset,
>> SpectralDataset, etc.
>> Close to home: the Chandra data distribution tar files are really
>> ObsDatatsets and contain
>> images, spectra, sparse cubes, etc.
>>
>>   - Arnold
>>
>>
> This is why it will be important to be very specific about what we mean by
> "Dataset".
>  In these diagrams, I am interpreting it as 'a result', a single file if
> you will. The
> 'tar' ball would be a collection of different flavors of <ObsDataset>.
>
> There has been some discussion on this earlier.  I think it was Pat, who
> mentioned that he
> has switched to using the term "DataProduct" for a single 'result' file,
> because it is less
> ambiguous.  However, since Dataset was already in use for these models, I
> kept the names.
>
> Mark
>
>
>
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