Representing v1.0 and pre-1.0 implementations
One important issue we need to address is how to support the earliest
SSA implementations. These were built well before v1.0 of the SSA
spec was completed; thus, it is unlikely that they would be compliant
at this time. Still, several do exist, and it would be good to
recognize these as serving spectra.
The subsection below gives a proposal for representing the pre-v1.0 services with a special version value on the interface. However, the editor of the SSA spec voiced a preference for labelling pre-v1.0 implementations using a different capability xsi:type , and there were no dissents. Thus, in the new schema above, there is a second capability type (defined identically to the first one) called "ProtoSpectralAccess" (as oppsed to "SimpleSpectralAccess" ).
Previous version proposal
VOResource v1.0 allows one to list in one resource description support
for different versions of a protocol. For SSA, this means that within
the "SimpleSpectralAccess" capability element, multiple interface
elements may be listed, each with a different value for its version
attribute. (If version is not provided, "1.0" is to be assumed.)
I recommend that we encourage the registration of the early SSA services using the "SimpleSpectralAccess" capability but to set the value of the interface element to "proto". That is,
<ri:Resource ...>
...
<capability xsi:type="ssa:SimpleSpectralAccess">
<interface xsi:type="vs:ParamHTTP" version="proto">
<accessURL> ... </accessURL>
</interface>
...
<capability>
...
</ri:Resource>
(If you don't "proto" as a version string, please suggest an
alternative, e.g "0.5".)
-- RayPlante - 24 Sep 2007
<--
-->
META FILEATTACHMENT |
attr="" comment="" date="1190646303" name="SSA-v0.1.xsd" path="SSA-v0.1.xsd" size="20811" user="RayPlante" version="1.1" |
META FILEATTACHMENT |
attr="" comment="" date="1201688922" name="SSA-wd.xsd" path="SSA-wd.xsd" size="28202" user="RayPlante" version="1.2" |
META FILEATTACHMENT |
attr="" comment="" date="1190886038" name="ssavor.xml" path="ssavor.xml" size="7586" user="RayPlante" version="1.1" |
META FILEATTACHMENT |
attr="" comment="" date="1201689436" name="ssa.xml" path="ssa.xml" size="8916" user="RayPlante" version="1.2" |
|