[SensorML] QualityPropertyType

Robin, Alexandre Alexandre.Robin at spotimage.fr
Tue Jul 15 04:05:12 EDT 2008


Ooops sorry about your name, I meant Jesper :-)

--------------------------------------------------
Alexandre Robin
Spot Image, Web and E-Business
Tel: +33 (0) 5 62 19 43 62
Fax: +33 (0) 5 62 19 43 43
http://www.spotimage.com
Before printing, think about the environment


> -----Message d'origine-----
> De : Robin, Alexandre
> Envoyé : mardi 15 juillet 2008 10:03
> À : 'mike.botts at uah.edu'; 'Jesper Zedlitz';
> sensorml at lists.opengeospatial.org
> Objet : RE: [SensorML] QualityPropertyType
> 
> Hi Jepser, Mike,
> 
> Actually Jesper was doing the right thing too.
> What you did is exactly the intent with the xlink:href on quality.
> 
> It is intended to be used to reference a data component that itself gives
> the quality measure of another a component everything being streamed
> together... (useful for describing GPS streams for instance that include
> the estimated error of the location and velocity measurements themselves)
> 
> So basically you either give a fixed value for the quality if it is
> constant throughout the data stream (Mike's example), or you point to
> another stream component if the quality value is changing (you example).
> 
> Quality can be either a Quantity (for things like relative/absolute
> accuracy), a Category (for qualitative statements like "good", "ok",
> "bad") or a QuantityRange (for things like bidirectional tolerances,
> etc.). It can also be plain Text. You can have several of these quality
> statements (i.e. one numerical + some human readable text for instance) on
> the same data component...
> 
> Hope this helps.
> I will try to do a good job at explaining this in the new specification.
> 
> Cheers,
> 
> --------------------------------------------------
> Alexandre Robin
> Spot Image, Web and E-Business
> Tel: +33 (0) 5 62 19 43 62
> Fax: +33 (0) 5 62 19 43 43
> http://www.spotimage.com
> Before printing, think about the environment
> 
> 
> 
> > -----Message d'origine-----
> > De : sensorml-
> > bounces+alexandre.robin=spotimage.fr at lists.opengeospatial.org
> > [mailto:sensorml-
> > bounces+alexandre.robin=spotimage.fr at lists.opengeospatial.org] De la
> part
> > de Mike Botts
> > Envoyé : lundi 14 juillet 2008 06:35
> > À : 'Jesper Zedlitz'; sensorml at lists.opengeospatial.org
> > Objet : Re: [SensorML] QualityPropertyType
> >
> > Jesper.
> >
> > Sorry I didn't answer this earlier. The "ref" attribute should actually
> be
> > the "definition" attribute, as in the following example from a frame
> > camera
> > model:
> >
> > <swe:field name="k2">
> >   <swe:Quantity definition="urn:ogc:def:property:CSM:DISTOR_RAD2">
> >     <swe:quality>
> >       <swe:Quantity definition="urn:ogc:def:property:OGC:stdError">
> >         <swe:value>2.813e-010</swe:value>
> >       </swe:Quantity>
> >     </swe:quality>
> >     <swe:uom code="mm-2" />
> >     <swe:value>-5.14206e-010</swe:value>
> >   </swe:Quantity>
> > </swe:field>
> >
> > Thanks.
> > Mike Botts
> >
> > ********************************
> > Dr. Mike Botts
> > Principal Research Scientist
> > University of Alabama in Huntsville
> >
> > mike.botts at uah.edu
> > work: +01-256-961-7760
> > cell: +01-256-652-0165
> > ********************************
> >
> >
> > -----Original Message-----
> > From: sensorml-bounces+mike.botts=nsstc.uah.edu at lists.opengeospatial.org
> > [mailto:sensorml-
> > bounces+mike.botts=nsstc.uah.edu at lists.opengeospatial.org]
> > On Behalf Of Jesper Zedlitz
> > Sent: Wednesday, May 14, 2008 8:55 AM
> > To: sensorml at lists.opengeospatial.org
> > Subject: [SensorML] QualityPropertyType
> >
> > The documentation of the QualityPropertyType says: "The use of the 'ref'
> > attribute indicate that the value of accuracy is included itself in the
> > data
> > inside the referred component." However, a "ref" attribute is not
> allowed
> > for that type. Should it read "xlink:href" instead?
> >
> > I want to include quality indicators into the data, like this:
> > <swe:DataRecord>
> >   <swe:field name="pressure">
> >     <swe:Quantity definition="urn:ogc:def:property:Argo:PRES">
> >       <swe:uom code="dbar" />
> >       <swe:quality xlink:href="#PRESSURE_QUALITY"/>
> >     </swe:Quantity>
> >   </swe:field>
> >   <swe:field name="pressure_quality">
> >     <swe:Category gml:id="PRESSURE_QUALITY">
> >         <swe:constraint>
> >           <swe:AllowedTokens>
> >             <swe:valueList>1 2 3 4</swe:valueList>
> >           </swe:AllowedTokens>
> >         </swe:constraint>
> >     </swe:Category>
> >   </swe:field>
> > </swe:DataRecord>
> >
> > Will it work to link from a "quality" element to a "Category" element?
> >
> > Jesper
> >
> > --
> > Dipl.-Inf. Jesper Zedlitz        Dept. for Computer Science, CAU of Kiel
> > Room 1108                        Communication Systems Research Group
> >                                  Phone:    +49-(0)431-880-7279
> > Christian-Albrechts-Platz 4      Fax:      +49-(0)431-880-7615
> > 24098 Kiel - Germany             jze at informatik.uni-kiel.de
> >
> > _______________________________________________
> > SensorML mailing list
> > SensorML at lists.opengeospatial.org
> > https://lists.opengeospatial.org/mailman/listinfo/sensorml



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