Provides a common formal model for the IEC 61360-1 and ISO 13584-42 and facilitates their harmonization. Allows for the implementation of dictionary systems dealing with data delivered according to either of those standards.Provides a formal model for data according to the scope as given in the publications cited above, and thus provides a means for the computer-sensible representation and exchange of such data. This consolidated version consists of the second edition (2002) and its amendment 1 (2003). Therefore, no need to order amendment in addition to this publication.