Functional decomposition

A functional decomposition is created for each major function represented in the BCD.

These functional decompositions are shown in the business function model. A top-level function called Enterprise Business Model (EBM) provides an overview of all existing major functions.

A functional decomposition consists of a breakdown of all major functions, with all available main functions attached to the major function acting as children. The ground rule when making this decomposition is that the decomposition is continued until each main function handles only one flow. A flow is a description of what must be accomplished by a process, related to a business function, regarding a particular work object.

The flow object is the entity that flows through the business process, for example, a sales order or a warehouse order. The flow is directly related to the flow object. If the characteristics of a flow object change, the flow case will also change, which indicates the beginning of a new main function, and a new main process.

Because one function can exist in various business typologies, variants have been created on the lowest level of the function model. Business processes are linked to this level (variant).