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Data-centric Web services are services whose behavior is determined by their interactions with a repository of stored data. The lack of data specification in current Web service standards potentially leads to erroneous use of these services by their consumers. In this work, we propose using formal data contracts to decrease ambiguity about a service behavior, to fully verify a composition of services,...
We describe an extensible framework for translating data models into ontology models. Initially, the framework addresses two types of source data models: the relational database (RDB) and object-relational database (ORDB) models. The derived ontology model is based on OWL. The framework extracts information about the source data models from the metadata maintained by the DBMS. The extracted metadata...
Maintaining consistency constraints in a complicated development environment is ever an open problem, as different development tools are usually involved which in turn use various files or databases to store their data. To solve this problem, current XML technology was used to build a repository which manages all data of a development effort. XML queries were also presented to state consistency constraints...
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