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meaning of XML graphics in WCS 1.0

Hello Listers,

in the attempt to dig deeper into the WCS spec I miss some XmlSpy syntax, maybe 
somebody kindly can educate me (couldn't find info on the Altova site):

- in CoverageOfferingBriefType, there is a yellow box with a line outside the 
box labelled CoverageOfferingBriefType, leading to additional elements.
Q: what does this mean?

- in DomainSetType a bent arrow goes from gml:EnvelopeWithTimePeriod to 
gml:Envelope.
Q: what does this mean?

...see the attached diagrams.

Notably these elements are not explained in the WCS XmlSpy intro image (Fig. 2).

TIA,
Peter

--
Dr. Peter Baumann
- Professor of Computer Science, International University Bremen
  www.faculty.iu-bremen.de/pbaumann, mail: p.baumann@xxxxxxxxxxxx
  tel: +49-421-200-3178, fax: +49-421-200-49-3178
- Executive Director, rasdaman GmbH
  www.rasdaman.com, mail: baumann@xxxxxxxxxxxx
  tel: +49-89-67000146, fax: -67000147, mobile: +49-173-5837882
"A brilliant idea is a job halfdone."


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