The SIRUP Ontology Query API in Action

摘要

Ontology languages to represent ontologies exist in large numbers, and users who want to access or reuse ontologies can often be confronted with a language they do not know. Therefore, ontology languages are nowadays themselves a source of heterogeneity. In this demo, we present the SIRUP Ontology Query API (SOQA) that has been developed for the SIRUP approach to semantic data integration. SOQA is an ontology language independent Java API for query access to ontological metadata and data that can be represented in a variety of ontology languages. In addition, we demonstrate two applications that are based on SOQA: The SOQA Browser, a tool to graphically inspect all ontology information that can be accessed through SOQA, and SOQA-QL, an SQL-like query language that supports declarative queries against ontological metadata and data.