EKAW (European Knowledge Acquisition Workshop) started in 1987 as the European analogue to the KAW (Knowledge Acquisition Workshop) series of workshops in North America and the PKAW series in the Asian-Pacific area. Together KAW, EKAW and PKAW defined the key venues for research in Knowledge-Based Systems in the 80s and 90s, in particular for those researchers who were especially interested in the issues associated with the computational representation of conceptual models and human expert behav