The transfer of knowledge between groups of individuals of different levels of expertise and orientation is discussed with reference to the manner in which knowledge is disseminated using the specialist language of a given domain. A prototype system that allows access to knowledge at these different levels, through the automatic construction of keyword indexes, is outlined. The controversial relationship between knowledge and language is the basis of arguments in this paper.

The shared use of specialist terminology amongst the members of a community of practice is explored as evidence for the existence of the concept of terminology is described — this method uses both univariate analysis, specifically frequency distribution of single and compound words, and multivariate statistical analysis, particularly factor analysis. The results show that terminology sharing may act as a metric for knowledge sharing and knowledge diffusion among different (sub‑) communities. The case study chosen to demonstrate the efficacy of the terminology‑sharing method is drawn from breast cancer care, where texts produced for and by the three main components of the community are examined — namely the experts, the professionals and the patients. The shared use of specialist terminology amongst the members of a community of practice is explored as evidence for the existence of the concept of communal lexicon. A computer‑based method of investigating the extent of terminology is described — this method uses both univariate analysis, specifically frequency distribution of single and compound words, and multivariate statistical analysis, particularly factor analysis. The results show that terminology sharing may act as a metric for knowledge sharing and knowledge diffusion among different (sub‑) communities. The case study chosen to demonstrate the efficacy of the terminology‑sharing method is drawn from cancer care — especially breast cancer care, where texts produced for and by the three main components of the community are examined — namely the experts, the professionals and the patients.