New User Story: Validating and describing linked data portals

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
Slides: http://www.slideshare.net/jelabra/linked-dataquality-2014

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Best regards, Labra