[Requests] SOS 2.0 request: remove/clarify observation in multiple offerings
ilinkuo at usgs.gov
Tue Nov 30 17:27:48 EST 2010
Part A to be completed once. Iterate Part B as needed.
I-Lin Kuo <ilinkuo at usgs.gov>
2. Submission: OGC 10-037 SOS 2.0 Candidate standard
1. Requirement: Incorrect relationship between observation, procedure and
In Section 126.96.36.199,
"The Contents type lists all ObservationOfferings of an SOS
server. An ObservationOffering groups collections of observations produced
by one sensor system . The ObservationOffering lists the basic metadata
for the associated observations including the procedure which made the
observations. An observation may belong to more than one
To summarize: there is a 1:n relationship between procedures and
ObservationOfferings; there is a n:m relationship between observations
created by these procedures and ObservationOfferings."
Note that there is also a restriction that an Offering has at most one
procedure. Note also in Table 18 where "procedure" is defined to be a
sensor system. When these three restrictions are combined, then the only
way an observation can belong to more than one ObservationOffering is if
those two ObservationOfferings come from the same sensor system.
Please either correct this or clarify by providing a use case, because I
cannot in my wildest imagination come up with a situation where this is
true or desirable.
2. Implementation Specification Section number: [General, #]
3. Criticality: [Major, Minor, Editorial, etc.]
4. Comments/justifications for changes: [Comments]
IT Specialist, Center for Data Analytics (CIDA)
USGS WI Water Science Center
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