Modelling plays a central role in any process engineering project. Mec
hanistic models are being used increasingly not only for simulation bu
t also for design, operation and control related activities. The integ
ration of these activities is highly desirable as it would not only bu
ild a link between the various activity groups, but would also increas
e the efficiency of project activities. The key to improving efficienc
y is an increased use of common process information and effective exch
ange of data, models and information between the applications.