Representations (for example, messages or documents) are the perceptible carriers of information that are related to business objects. If relevant, representations can be classified in various ways; for example, in terms of medium (electronic, paper, audio, etc.) or format (HTML, ASCII, PDF, RTF, etc.). A single business object can have a number of different representations. Also, a single representation can realize one or more specific business objects.
A meaning can be associated with a representation that carries this meaning. The name of a representation is preferably a noun.