DIN EN 62027:2012-08

An object list is primarily used to list and specify the constituent objects (components) of the overall object or system to which the object list applies. It is generally recognized that information on products, installations and systems can be organized on the basis of tree-like, hierarchical structures. The structure represents the way in which an industrial system or a product is divided into sub-systems or components, designated by the general term "constituent objects". In the context of this International Standard, "object" refers to any entity treated in a process of development, implementation, usage and disposal of a plant, installation, system, equipment, etcetera, or part thereof, in accordance with the definition in 3.1.1. In the context of other standards, the term "item" is sometimes used with the same meaning as "object". Depending on the "aspect" different structures can be recognized, for example a "product-oriented structure", a "function-oriented structure" or a "location-oriented structure". A specific constituent object may be of relevance in one structure only, or in more than one. For further information on structures and structuring see IEC 81346-1:2009. An object list is implicitly or explicitly associated with such a structure. The object list concept described in this International Standard is therefore applicable in all structures defined in accordance with IEC 81346-1:2009. Object lists relevant to the manufacturing and assembly of a product, associated with the product-oriented structure, and generally named parts lists, usually cover only one assembly level each, and the main assembly is normally described by a system of single-level parts lists. An example of a system of single-level parts lists is shown in Figure 1. Object lists are often generated as reports from a database containing information on the entire structure. The responsible committee is K 113 "Produktdatenmodelle, Informationsstrukturen, Dokumentation und graphische Symbole" ("Product data models, information structures, documentation and graphical symbols") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.