Thomsen Diagrams

From Wikipedia, the free encyclopedia

Thomsen Diagrams are the diagrammatic methodology developed by Erik Thomsen in 1997[1] is essentially a metaphor for describing multi-dimensional data spaces in the OLAP system. In effect, it may be thought of as a multi-dimensional domain structure. In the structure, each dimension is represented by a vertical line, and hence each dimension is described independently.

Every member of a dimension is represented by a unit interval on the line. A multi-dimensional model is built by combining the resultant lines for the particular dimensions.

The Thomsen diagrammatical technique is not based on angular defined dimensions, and is thus able to represent any number of dimensions. It may be referred to as a multi-dimensional type structure[2] (MTS). The MTS permits the viewing of information about hierarchies and data flows, both within and between structures, hence enhancing the capabilities of the OLAP system.

References

  1. ↑ Erik Thomsen, 1997, OLAP Solutions: Building Multidimensional Information Systems (1st ed.), John Wiley
  2. ↑ Erik Thomsen, 1997, OLAP Solutions: Building Multidimensional Information Systems (2nd ed.), John Wiley

External links

  • Peter O'Donnell and Nick Draper 2004, An Experimental Evaluation of an Alternative to the Pivot Table for Ad Hoc Access to OLAP Data (PDF, PDF (alternative link)) - Wherein Mr. Thomsen's diagrams are called "Thomsen Diagrams".
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.