ER
1998
Springer
14 years 4 months ago
1998
Springer
Abstract. While most data analysis and decision support tools use numerical aspects of the data, Conceptual Information Systems focus on their conceptual structure. This paper disc...
EKAW
1999
Springer
14 years 4 months ago
1999
Springer
Abstract. Conceptual Information Systems unfold the conceptual structure of data stored in relational databases. In the design phase of the system, conceptual hierarchies have to b...