Abstract
Despite years of work, no re-usable clinical terminology has yet been demonstrated
in widespread use. This paper puts forward ten reasons why developing such terminologies
is hard. All stem from underestimating the change entailed in using terminology in
software for ‘patient centred’ systems rather than for its traditional functions of
statistical and financial reporting. Firstly, the increase in scale and complexity
are enormous. Secondly, the resulting scale exceeds what can be managed manually with
the rigour required by software, but building appropriate rigorous representations
on the necessary scale is, in itself, a hard problem. Thirdly, ‘clinical pragmatics’
– practical data entry, presentation and retrieval for clinical tasks – must be taken
into account, so that the intrinsic differences between the needs of users and the
needs of software are addressed. This implies that validation of clinical terminologies
must include validation in use as implemented in software.
Keywords
Terminology - Knowledge Representation - Medical Records - Natural Language