dear all, this is a followup to a chat with Jeroen at the recent gvSIG
user meeting, and i got to ask Max Craglia this question too,
about what advice the INSPIRE (European SDI) project is offering about
common ways of referring to web service protocols with URLs or similar
identifiers.
The short answer is - no guidance yet, more of a request for feedback.
On the one hand, there's a felt need for common identifiers for OGC,
KML, etc web services standards that exist now. On the other, there is
concern about 'futureproofing' an effort designed to extend over the
next 5-10 years. The INSPIRE IRs plan to mandate a service
classification code list created "in collaboration with the
stakeholder community". That includes us!
... more detail on the draft legislative fine print + process ...
I had a look at what the draft INSPIRE IRs now say about sharing
descriptions of web service interfaces (something that will be key to
any "compliance-o-matic" regarding Network Services Implementing Rules.)
This is Annex B.3 from the draft Implementing Rules:
B.3 Classification of spatial data services
The values are based on the geographic services taxonomy of EN ISO
19119 and will be developed further with input of stakeholder
communities. This taxonomy is organized in categories, the
subcategories defining the value domain of the classification of
spatial data services.
The informative document mapping ISO 19915/9 to the INSPIRE metadata
model says this:
2.2.2.2 Classification of spatial data services For classification of
spatial data services, the Implementing Rules mandate the use of the
value domain of Annex B.3. This value domain does not exist within any
existing code list of EN ISO 19115 or EN ISO 19119. The class
SV_ServiceType in 19119 is undefined. Following the requirement from
the Implementing Rules, Annex B.3 of the IRs shall be the basis for a
new code list IR_ServiceClassificationCode that needs to be created in
collaboration with the stakeholder community as indicated in the IRs,
section 2.4. Subsequently, the code list can be used by the EN ISO
19119 metadata element serviceType as described below...
MD_Metadata.identification.SV_ServiceIdentification...
This implies, though does not dictate, that a *numeric classification
code list* should, and does not yet, exist to define types of web service.
Below is section 2.4 of the IRs *in full*, which should tell us how to
get involved in contributing prior art or best practise to this process:
2.4 Guidelines and instructions for implementation
The European Commission shall establish, in collaboration with
stakeholders and relevant standardisation organisations, detailed
guidelines and instructions for implementation to ensure
interoperability of metadata. These will include instructions on how
the European standards EN ISO 19115 and EN ISO 19119 shall be used to
disseminate INSPIRE metadata, should one chose to use these standards.
In short, the INSPIRE process is asking for, rather than requiring,
guidance on the subject of web services descriptions, right now.
The approved route will be through CEN and ISO advisory committees.
cheers,
jo
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