In [Schmitz et al.(1994)Schmitz, Budin Galinski] a comprehensive synthesis of data categories, (Datenkategorien), i.e. fields in records of a relational terminological database, based on ISO 1087 and ISO 12620.
The categories have been re-grouped and further categorised here in order to provide a more highly-structured basis for defining a data category vector as a database structure for a terminological micromodel. The overall micromodel vector will be presented below as field-specific subvectors, also referred to as micromodels (strictly: submicromodels). In formal and computational linguistic terms, a micromodel can clearly be formalised as an attribute-value structure, and therefore used in the context of current unification-oriented systems on the one hand, or represented with SGML markup on the other (see for example 7.3); further interconnections are not possible within the resources of the project.