Standards to support development of terminological systems for healthcare telematics.
The Technical Committee on "Medical Informatics" of the European Committee for Standardization (CEN/TC251) is supporting developers of terminological systems in healthcare by a series of standards. The dream of "universal" coding system was abandoned in favor of a coherent family of terminologies, diversified according to tasks; two ideas were introduced: (1) the "categorical structure", i.e. a model of semantic categories and their relations within a subject field and (2) the "cross-thesaurus", i.e. a system of descriptors to build a systematic representation (called here "dissection") for each terminological phrase, coherent across diverse terminologies on a given subject field. The goal is to assure coexistence and interoperability (and reciprocal support for development and maintenance) to three generations of systems: (1) traditional paper-based systems (first generation); (2) compositional systems built according to a categorical structure and a cross-thesaurus (second generation) and (3) formal models (third generation). Various scenarios are presented, on the exploitation of computer-based terminological systems. The idea of "operational meaning" of terminological phrases within administrative and organizational contexts and the idea of "task-oriented details" are also introduced, to justify and exploit design constraints on terminological systems.
Rossi Mori
A
A
Reparto Informatica Medica, Istituto Tecnologie Biomediche, CNR, Roma, Italy. angelo@color.irmkant.rm.cnr.it
Consorti
F
F
Galeazzi
E
E
D005060:Europe; D006801:Humans; D008491:Medical Informatics Applications; D008492:Medical Informatics Computing; D019114:Remote Consultation; D017432:Unified Medical Language System; D018875:Vocabulary, Controlled