The Semantic Puzzle

Jana Herwig

RDFS in Knowledge Management: DYONIPOS

The Austrian Ministry of Finance participated in a usecase within the DYONIPOS (DYnamic ONtology, an ontology is a formal representation of knowledge as a set of concepts within a domain, and the relationships between those concepts. It is used to reason about the entities within that domain, and may be used to describe the domain. In theory, an ontology is a "formal, explicit ... based Integrated Process OptimiSation) project – my colleague Tassilo PellegriniTassilo Pellegrini studied International Trade, Communication Science and Political Science. He started his career at the Department of Media Economics at the University of Salzburg and later worked as a project manager at Prognos AG, the European Center for Policy and Economic Research ... spoke to members of the use case project team: Josef Makolm from the Ministry of Finance, Michael Granitzer from KnowCenter GrazGraz is the second-largest city in Austria after Vienna and the capital of the federal state of Styria. It has a population of 291,890 as of 2010 (of which 258.605 have principal residence status). Graz has a long tradition as a student city: its six universities have more than 44,000 students. ..., and Doris Ipsmiller, consulting and development firm m2n. The DYONIPOS specs in short:

  • DYONIPOS uses an ontology based, semantic layer for providing a single-point-of-access to all information sources like e-mails, document repositories, yellow pages etc., thereby disambiguating existing information.
  • Knowledge discovery technologies map unstructured artifacts into the ontology and expand the semantic layer by identifying relevant relationships.
  • DYONIPOS interprets the current task of the user, deduces and delivers the information needed – the user does not have to search explicitly, nor does he have to know in which repository some piece of information may be found.
  • RDFS is used to harmonize the different repositories and integrate all kinds of different information sources for providing one single view on a company’s repository.
  • DYONIPOS uses graphIn mathematics, a graph is an abstract representation of a set of objects where some pairs of the objects are connected by links. The interconnected objects are represented by mathematical abstractions called vertices, and the links that connect some pairs of vertices are called edges. ...-based principles not only for harmonizing data, but also for the definition of workflows and processes: workflows can be modelled using RDFS; there is no need to pre-compile workflows as they are interpreted on the fly and can be changed easily.

The use case project was awarded with the Science Award for the Most Innovative E-Government Application which was part of the 8th e-Government competition under the patronage of the German Ministry of Internal Affairs; a competition that was open to federal, state and local administration in Austria, Germany and Switzerland. Congratulations! Learn more about the project in the interview, or on the project website.