The Integrated Enterprise Modelling Method (IEM) is a holistic methodical basis for modelling relevant business aspects of an enterprise. The IEM models are of high transparency and easy to understand. There is no need for large-scale training to handle the models. IEM uses the object-oriented modelling technique for modelling business processes, related organisational structures, required information systems, etc. It supports the analysis and optimisation of processes and organisational structures of enterprises. In order to evaluate the variety of planning information and description requirements it provides different views on one consistent model.