Abstract. We extend different Description Logics by concrete domains (such as integers and reals) and by aggregation functions over these domains (such as min;max;count;sum), which...
We use computational systems to express a completion with constraints procedure that gives priority to simpliļ¬cations. Computational systems are rewrite theories enriched by stra...
Successfully structuring information in databases, OLAP cubes, and XML is a crucial element in managing data nowadays. However this process brought new challenges to usability. It...
Originally XML was used as a standard protocol for data exchange in computing. The evolution of information technology has opened up new situations in which XML can be used to aut...
Programming technologies have improved continuously during the last decades, but from an Information Systems perspective, some well-known problems associated to the design and impl...