Re: New User Story: Validating and describing linked data portals

Yes. But that "general shape" does not necessarily have to be the same. As
the data portals have been created at different time periods and for
different clients, there may be some properties that differ.

So it is also important in the user story, that once there are several data
portals that evolved from that "general shape", there could appear third
party applications that create other applications aggregating data from
those data portals. It should be possible to at least, compare the shapes
of those dataportals.

For example, all those data portals can say that each observation has only
one floating point value, but some of them can refer the area of an
observation to be a Country, while others could allow any Region. The
aggregators could identify which parts of the shapes are compatible and
which aren't so the aggregators adapt their work accordingly.

Best regards, Jose Labra

On Mon, Feb 2, 2015 at 10:39 AM, Simon Steyskal <simon.steyskal@wu.ac.at>
wrote:

> Hi!
>
> So the main intent of this story is to state that, although observations
> might have different properties they might share the same "general shape"
> (e.g. any observation has only one floating point value)?
>
> cheers, simon
>
> ---
> DDipl.-Ing. Simon Steyskal
> Institute for Information Business, WU Vienna
>
> www: http://www.steyskal.info/  twitter: @simonsteys
>
> Am 2015-02-02 10:26, schrieb Jose Emilio Labra Gayo:
>
>> Following Peter's question in last meeting, I have edited the User
>> story adding a paragraph where I indicate the possible constraints
>> that can be represented in this example.
>>
>> The result is:
>>
>> https://www.w3.org/2014/data-shapes/wiki/User_Stories#S38_
>> Describing_and_Validating_Linked_Data_portals
>> [3]
>>
>>
>> Regards, Jose Labra
>>
>> On Fri, Jan 23, 2015 at 6:40 PM, Jose Emilio Labra Gayo
>> <jelabra@gmail.com> wrote:
>>
>>  Although I know that it is a bit late, I would like to add a new
>>> user story that is based in a real life experience and that I think
>>> is not completely covered by the other user stories.
>>>
>>> The reason that I didn't add it before is that I could not be part
>>> of the WG until two weeks ago.
>>>
>>> The User Story could be:
>>>
>>> Describing and Validating Linked Data portals
>>> by Jose Labra
>>>
>>> A small company is specialized in the development of linked data
>>> portals. The contents of those portals are usually from statistical
>>> data that comes from Excel sheets and can easily be mapped to RDF
>>> Data Cube observations.
>>>
>>> The company needs a way to describe the model of the RDF graphs that
>>> need to be generated from the Excel sheets which will also be
>>> published as an SPARQL endpoint. Notice that those linked data
>>> portals could contain observations which will usually be instances
>>> of qb:Observation but can contain different properties.
>>>
>>> In this context, the company is looking for a solution that can be
>>> easily understood by the team of developers which are familiar work
>>> with OO programming languages, relational databases, XML
>>> technologies and some basic RDF knowledge, but they are not familiar
>>> with other semantic web technologies like SPARQL, OWL, etc.
>>>
>>> The company also wants some solution that can be published and
>>> understood by external semantic web developers so they can easily
>>> know how to query the SPARQL endpoint.
>>>
>>> There is also a need that the solution can be machine processable,
>>> so the contents of the linked data portal can automatically be
>>> validated.
>>>
>>> Finally, the company would like to compare the schemas employed so
>>> they can check which are the differences between the RDF nodes in
>>> those portals and they can even create new applications on top of
>>> the data aggregated by those portals.
>>>
>>> --------- end of User Story
>>>
>>> The user story is based on my own experience in the development of
>>> two real life linked data portals (the WebIndex and the LandPortal).
>>>
>>> In both cases, we employed ShEx documents to describe the RDF
>>> contents that had to be generated to the development team (which
>>> were no semantic web experts). The experience is also described in
>>> [1].
>>>
>>> [1] Validating and Describing Linked Data Portals using RDF Shape
>>> Expressions, Jose Emilio Labra Gayo, Eric Prud'hommeaux, Harold
>>> Solbrig,
>>>
>>> 1st Workshop on Linked Data Quality, Sept. 2014, Leipzig, Germany
>>> PDF: http://labra.github.io/ShExcala/papers/ldq2014.pdf [1]
>>> Slides: http://www.slideshare.net/jelabra/linked-dataquality-2014
>>> [2]
>>>
>>> --
>>>
>>> Best regards, Labra
>>>
>>
>> --
>>
>> Saludos, Labra
>>
>> Links:
>> ------
>> [1] http://labra.github.io/ShExcala/papers/ldq2014.pdf
>> [2] http://www.slideshare.net/jelabra/linked-dataquality-2014
>> [3]
>> https://www.w3.org/2014/data-shapes/wiki/User_Stories#S38_
>> Describing_and_Validating_Linked_Data_portals
>>
>


-- 
Saludos, Labra