Enterprise modeling method of calculation-independent model level

Aimed at deficiencies in the development and implementation of Enterprise Service Architecture (ESA)software,an ESA software developing mode based on Model Driven Architecture(MDA) is put forward.This mode includes a calculation-independent model(CIM),a platform-independent model (PIM),a platform-specific model (PSM)and a code level. Based on this mode,the modeling architecture of CIM level is presented. CIM here includes a global model,a process model,an information model and an organization model. The modeling elements of global model, process meta-model, information meta-model and organization meta-model are defined in detail and the relationship between them is described. The reflecting relationship between these models is established as well.