ISO/TS 22745-40:2010 is a specialization of ISO/TS 29002-10 thatspecifies a conceptual information model and an exchange fileformat for catalogues. A catalogue is a collection of master datarecords. A master data record is made up of characteristic dataexpressed as property value pairs, where the property is identifiedby reference to a concept in an open technical dictionary. Theconceptual information model is in Unified Modeling Language (UML).The physical file format is specified via an Extensible MarkupLanguage (XML) schema.