Complex chemical plants need various custom monitoring, control, simul
ation and diagnostic software codes that necessitate the integration o
f models into the problem-solving process. This paper describes a syst
em and its practical applications that support this process. The work
described here is based on the Multigraph Architecture: a generic fram
ework for building model-based systems. The paper discusses the modeli
ng paradigm and techniques used, how the applications are generated, a
nd some practical, existing applications.