A procedure (for example V10000) is a pool of output types (for example inquiry outputs, order outputs; an output type is also called a "condition type").

An application determines one procedure from the current document type, which it transfers to message determination. A procedure is therefore a collection of output types from an application perspective.

The procedure is the highest element in the condition component hierarchy. Whenever a procedure is called, all output types (next hierarchy level) are searched for.