There is a growing need for Enterprise Application Integration (EAI) techno
logies, which align the applications of an organisation to its business pro
cesses. Such technologies require an adequate methodological support so tha
t well-structured and easily understandable models can be constructed. In t
his paper, such a methodological support is proposed by introducing princip
les for the design, validation and presentation of process models and assoc
iated data models. By applying these principles, we obtain different views
of the models, and thereby facilitate the use of common models for differen
t stakeholders, e.g. business managers, designers and operators. (C) 2001 P
ublished by Elsevier Science Ltd.