Ben Caradoc-Davies ha scritto:
> On 22/09/09 14:29, Andrea Aime wrote:
>> One thing that might raise eyebrowses is that the comparison
>> table in the "complex features" section appears to be
>> identifying complex features with open standards.
>> While the two are often found in combination, a standard could
>> mandate a simple feature schema (in which case one would
>> probably end up using the schema mapping abilities of app-schema,
>> but not the generation of complex features),
>> and a custom application could define a non standardized target
>> schema just because the nature of the data it provides
>> is better served by a complex feature setup.
> 
> Indeed! I had a section on the possible use of application schemas for 
> simple features, but I removed it because I thought it confused the 
> issue. I might have to put it back in if its absence is so obvious. I 
> have tried to avoid any inference that application schemas are all 
> complex, but it is easy to make that assumption.
> 
> If you nest all feature properties by reference, app-schema output 
> begins to look rather a lot like simple features (but not quite) ...
> 
> I prefer to think of GeoServer simple features as being automatic-schema 
> or inferred-schema features, because their schema is (typically) 
> inferred from the database schema. They might be simple, but, in my 
> view, that is not their defining characteristic.

Absolutely. My remark was more on the lines that one does not need
to be publishing a standard schema to benefit from the app-schema
module.
One can have a real need for complex features in an application that
does not need to share a common profile, or in a field where the
standard bodies have not provided any reference, or simply because
for the needs at hand the reference schema is considered too
complex.

Cheers
Andrea

-- 
Andrea Aime
OpenGeo - http://opengeo.org
Expert service straight from the developers.

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