Abstract: A system for enterprise information integration is described. The system is based on different layers: the data sources, source ontologies corresponding to the data schema of the data sources, an integration ontology integrating the different source ontologies, a level of query input, preferably in the form of a web service. Between the levels, mapping rules are used. For the mapping of document style web services and XML documents to ontologies detailed rules are given, covering i.a. simpleContent and complexContent elements, which are mapped to class properties and relations (object properties), respectively.

Abstract: A system for enterprise information integration is described. The system is based on different layers: the data sources, source ontologies corresponding to the data schema of the data sources, an integration ontology integrating the different source ontologies, a level of query input, preferably in the form of a web service. Between the levels, mapping rules are used. These mapping rules and the entire system are based on predicate logic. The queries are answered with the help of the rules using inference based on predicate logic.

Abstract: An application framework for composing applications involving a plurality of webservices. The application framework comprises: 1) a layout editor adapted to create a graphical user interface of an application comprising a plurality of pages, each page comprising at least one element for interaction with a user to generate or modify a set of data; 2) a control layer editor, adapted to create for each page of the graphical user interface a corresponding code fragment receiving and processing the set of data relating to the respective page; and 3) a generator generating an orchestration sequence from the plurality of code fragments, wherein the processing of the orchestration sequence by an engine involves the invoking of the plurality of webservices.

Abstract: A system for enterprise information integration is described. The system is based on different layers: the data sources, source ontologies corresponding to the data schema of the data sources, an integration ontology integrating the different source ontologies, a level of query input, preferably in the form of a web service. Between the levels, mapping rules are used. For the mapping of document style web services and XML documents to ontologies detailed rules are given, covering i.a. simpleContent and complexContent elements, which are mapped to class properties and relations (object properties), respectively.

Abstract: A system for enterprise information integration is described. The system is based on different layers: the data sources, source ontologies corresponding to the data schema of the data sources, an integration ontology integrating the different source ontologies, a level of query input, preferably in the form of a web service. Between the levels, mapping rules are used. These mapping rules and the entire system are based on predicate logic. The queries are answered with the help of the rules using inference based on predicate logic.

Abstract: The invention relates to a method for searching within elements of a hierarchically structured database (10), wherein each element has one or more hierarchically structured nodes for defining attributes of said element and wherein one or more nodes of the searched element must fulfill one or more search conditions (c0,ci, . . . ) the method comprising the steps of a. selecting a plurality of nodes and assigning a unique identifier (EID) to each of the selected nodes; b. creating a reference index (20), that allows to derive for each unique identifier (EID) of a selected node the corresponding element of the database (10); c. for each of the one or more search conditions (c0,ci, . . . ): retrieving a set (L, Ei) of unique identifiers for ancestor nodes of nodes, which fulfill the respective search condition (c0,ci, . . . ); d. intersecting the sets (L, Ei) to obtain a final set (L) of unique identifiers; and e.