A Platform for Object-Action Semantic Web Interaction

Abstract

Semantic Web applications tests show that their usability is seriously compromised. This motivates the exploration of alternative interaction paradigms, different from the "traditional" Web or desktop applications ones. The Rhizomer platform is based on the object-action interaction paradigm, which is better suited for heterogeneous resource spaces such as those common in the Semantic Web. Resources, described by means of RDF metadata, correspond to the objects from the interaction point of view and Rhizomer provides browsing mechanisms for them. Semantic web services, dynamically associated to these objects, correspond to the actions. Rhizomer has been applied in the context of a media house to build an audiovisual content management system. End-users of this system, journalists and archivists, are able to navigate the content repository through semantic metadata describing content pieces and the domain knowledge these pieces are referring to. Those resources constitute the objects to which, when the user selects one of them, semantic web services dynamically associate specialized visualization and interaction views, the actions.

Triplificating and linking XBRL financial data

“…The 3 million triples resulting from the mapping have been published online using the Rhizomer tool [13]. Data can be queried, traversed and edited online 13 through a web user interface for human users.…”

“…hierarchies of elements and complex types that are translated to 11 http://www.rdfabout.com/demo/sec/ 12 http://api.corpwatch.org/ 13 SemanticXBRL, http://rhizomik.net/semanticxbrl property and class hierarchies respectively. Moreover, there is also a query that exploits the fact that some of the Adobe Systems Inc. ontologies have been integrated and returns data from different filings for equivalent facts with different names.…”

Building a Usable and Accessible Semantic Web Interaction Platform

“…If the user is interested in any of them, by clicking on them the fragment for the corresponding identified resource is retrieved and rendered as HTML. More details about semantic metadata browsing with Rhizomer are available from [11].…”

“…This completes the roundtrip for RDF metadata editing from RDF to HTML forms and back to RDF. More details about semantic metadata edition with Rhizomer are available from [11].…”

“…This recommendation is based on the fact that, being the accessibility guidelines expressed using natural language, the results provided by different automatic evaluators can differ. In this particular case, TAW 11 , Evalaccess 12 and TotalValidator 13 were used as automatic accessibility evaluation tools.…”