Lecture Thursday 24 March 2005

Thursday, 3/24/05: Classification, cont.

* Parsons, J. & Wand, Y. (1997). Choosing classes in conceptual modeling. Communications of the ACM 40(6), 63-69.
* Priss, U. & Jacob, E. (1999). Utilizing faceted structures for information systems design. Proceedings of the 62nd Annual Meeting of the American Society for Information Science, 203-212.

Concern with coding hierarchy: notation, a remnant of pre-computing and early computing systems where memory was a concern

facet: fabric


notation
order in an array--in which order would you like a set of facets (how to order types of fabrics)?
schedule order--in what order are the facets themselves (e.g., chief complaint facets, such as body system, then type of pain, etc.)
citation order
cotton green shirt sounds funny
but green cotton shirt sounds normal




version of ICD-9

how do you order nominal data?