OCD - Semantic Representation and Documentation

The Project
The primary goal of the project is to make fully operational the wide information resources of the Chamber of deputies, which have an infinite variety of formats and approaches stratified over the years in digital management.

Therefore, an ontology description in XML / RDF and a specific namespace, OCD (Ontology of the Chamber of Deputies) have been designed; their properties and classes describe the domain of the Chamber during its history.

The ontology used for the creation of these datasets is written in OWL and is the result of a work subjected to improvements, upgrades and expansions. A major goal of the “Ontology Chamber of Deputies” is to be as much as possible modelled on other Open Government Data produced in other states and to follow the guidelines and spread best practices.

In order to share, publish and integrate the resources of the ontology with external subjects and national and international public administrations, particular attention has been taken in the choice of descriptive models and analysis of other open data and guidelines and "good practices" defined and distributed by the Open Knowledge Foundation Open Knowledge Foundation. To facilitate and feed in a way not "mediated" the linked open data, international diffuse ontologies have been used as a FOAF Ontology Friend of a friend and Dublin Core.

Linked-Data
The term Linked Data refers to a series of "best practices" to publish and connect with each other through the web collections of structured data.
In recent years the growing demand from users of services that allow a high degree of interconnection between the data from different sources has led to accession by other providers of this philosophy, with the objective of building a global data space globally accessible: the web of data which is the central part of the so-called semantic web.
In this context, three factors are of the greatest interest: the semantics, the accessibility of data and their free availability to the user.

• Free Availability: Open the data are proposed, or license issued under Attribution-Share and freely usable by users;
• Semantics: the use of descriptors allows the emergence of semantic links between resources, linking them according to their "meaning." RDF provides the opportunity to do so to describe resources using a structured data model and oriented graphs, and is thus the main description model used;
• Usability: within the hypermedia network nodes become resources to be identified by URI and represented in various formats, as needed (for example, RDF can be serialized in XML formats as well as on simple text file, and presented to the user via html pages).
   

File datasets
The data contained within the repository can be used directly within external applications: you can download the serialization of data in various formats (RDF / XML, CSV, turtle ...) for use offline.

Enpoint SPARQL
You can directly query the repository of SPARQL endpoints: for example, it can be used by applications, mash-ups to create links to resources of other data sets.

Browsers
To view and search the data you can use the browsers RDF public and accessible via the web. The browser provides a comprehensive overview of the resource considered making explicit links with all other information (images, pdf documents, etc..). Clicking on the link below you can see the card of Giovanni Giolitti: http://www5.wiwiss.fu-berlin.de/marbles?uri=http://dati.camera.it/ocd/persona.rdf/pr2546 on Marbles or on LodLive https://dati.camera.it/lodlive/?http://dati.camera.it/ocd/persona.rdf/pr2546