Re: The last Best Practices requirement

Hi Frans,

this should be covered by the requirement CRS definition
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#CRSDefinition>
in the case of geographic data, as Peter suggested. I don't think that
Linkability
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#Linkability>
and Spatial operators
<http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#SpatialOperators>
requirements cover the definition of proper platial/placial reference
systems. So, I would either adapt the CRS definition requirement to cover
different spatial data reference systems OR create a new requirement for
the type of scenario you describe.

Cheers,
Alejandro

On 30 April 2015 at 08:37, Frans Knibbe <frans.knibbe@geodan.nl> wrote:

> Hi Peter,
>
> Yes the datum does this, but only for geographical data. This working
> group is about spatial data, of which geographical data are a subset. For
> example, there could be data saying "I am in seat 7 of row 3 in auditorium
> 4 of the Luxor Theatre". That is spatial data, but it does not use a
> geographical reference system.
>
> Regards,
> Frans
>
>
> 2015-04-29 17:40 GMT+02:00 Peter Baumann <p.baumann@jacobs-university.de>:
>
>>  Hi Frans,
>>
>> isn't this exactly the definition of a coordinate reference system
>> anyway? The datum does this AFAICS.
>>
>> -Peter
>>
>>
>> On 04/29/15 17:03, Frans Knibbe wrote:
>>
>> Hello Alejandro,
>>
>>  I am now looking at the last requirement on the Best Practices tab of
>> the spreadsheet
>> <https://docs.google.com/spreadsheets/d/1PSnpJYQDgsdgZgPJEfUU0EhVfgFFYGc1WL4xUX9Dunk/edit?usp=sharing>.
>> It says:
>> *"Requires a reference to not just a coordinate reference system but also
>> an global reference to the space or object that data is being positioned
>> within / upon"*
>>
>>  I wonder if this requirement is not already covered by the Linkabilty
>> <http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#Linkability>
>> and Spatial Operators
>> <http://w3c.github.io/sdw/UseCases/SDWUseCasesAndRequirements.html#SpatialOperators> requirements.
>> If that is the case perhaps we won't need this as a separate requirement.
>>
>>  Greetings,
>> Frans
>>
>>  --
>>  Frans Knibbe
>>  Geodan
>> President Kennedylaan 1
>> 1079 MB Amsterdam (NL)
>>
>>  T +31 (0)20 - 5711 347
>> E frans.knibbe@geodan.nl
>> www.geodan.nl
>> disclaimer <http://www.geodan.nl/disclaimer>
>>
>>
>> --
>> Dr. Peter Baumann
>>  - Professor of Computer Science, Jacobs University Bremen
>>    www.faculty.jacobs-university.de/pbaumann
>>    mail: p.baumann@jacobs-university.de
>>    tel: +49-421-200-3178, fax: +49-421-200-493178
>>  - Executive Director, rasdaman GmbH Bremen (HRB 26793)
>>    www.rasdaman.com, mail: baumann@rasdaman.com
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>> "Si forte in alienas manus oberraverit hec peregrina epistola incertis ventis dimissa, sed Deo commendata, precamur ut ei reddatur cui soli destinata, nec preripiat quisquam non sibi parata." (mail disclaimer, AD 1083)
>>
>>
>>
>>
>
>
> --
> Frans Knibbe
> Geodan
> President Kennedylaan 1
> 1079 MB Amsterdam (NL)
>
> T +31 (0)20 - 5711 347
> E frans.knibbe@geodan.nl
> www.geodan.nl
> disclaimer <http://www.geodan.nl/disclaimer>
>
>


-- 
Alejandro Llaves

Ontology Engineering Group (OEG)

Artificial Intelligence Department

Universidad Politécnica de Madrid

Avda. Montepríncipe s/n

Boadilla del Monte, 28660 Madrid, Spain


http://www.oeg-upm.net/index.php/phd/325-allaves


allaves@fi.upm.es