Business process modelling has long been important both for IS development and organization performance optimization. In addition, as demonstrated by practical experience derived from cooperation with organizations it is necessary to design an approach allowing the translation of business processes modelled in a particular perspective to other perspectives – which is not always possible under the existing modelling approaches. This paper brings together business process modelling perspectives that have found their reflection in various existing enterprise architectures. The existing business process modelling perspectives are grouped based on the underlying semantic meaning and analysed from the following viewpoints – the modelling scale and possible values and interrelation between different business process modelling perspectives.