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Multi-star conceptual schemas for OLAP systems

Author
Abello, A.; Samos, J.; Saltor, F.
Type of activity
Report
Date
2001-10
Code
LSI-01-45-R
Repository
http://hdl.handle.net/2117/97840 Open in new window
Abstract
OLAP tools divide concepts based on whether they are used as analysis dimensions, or are the fact subject of analysis, which gives rise to star shape schemas. Operations are always provided to navigate inside such star schemas. However, the navigation among different stars use to be forgotten. This paper studies different kinds of conceptual relationships between stars (i.e. Derivability, Generalization/Specialization, Aggregation/Decomposition, or Temporal), and proposes a 3-level schemas archi...
Citation
Abello, A., Samos, J., Saltor, F. "Multi-star conceptual schemas for OLAP systems". 2001.
Keywords
Conceptual modeling, Drill across, Multidimensional schemas, OLAP, Semantics
Group of research
DTIM - Database Technologies and lnformation Management Group
inLab FIB
inSSIDE - integrated Software, Service, Information and Data Engineering

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