Accounting with SAP R/3
The graphic, textual, or other structural conventions used in constructing a model. They govern the shape and configuration of entity and activity boxes, the symbols used to depict relationship cardinality, and the placement and meaning of ICOMs. Refers to the form of a model, rather than its content.
[vgl. www.c3i.osd.mil/bpr/bprcd/mglossry.htm (6.1.2002), URL]