This part of ISO 13399 defines the principles and methods for creating unambiguous identifications and definitions of the items and their properties relating to cutting tools in computer-sensible dictionaries to be used for reference by the information model defined in ISO 13399-1. It is applicable to: — the specification of data element types, their identifying, semantic and value attributes; — the specification of item classes, their identifying and semantic attributes; — the specification of feature classes, their identifying and semantic attributes. It is not applicable to: — information model for cutting tools; — classifications and definitions of items and data element types relating to cutting tools; — the association between properties and items in a classification. NOTE 1 The information model for cutting tools is defined in ISO 13399-1. NOTE 2 The classification of items relating to cutting tools, the definitions of items and data element types and the association of properties to items are defined in ISO 13399-2, ISO 13399-3, ISO 13399-4, ISO 13399-50 and ISO 13399-60.