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IEC 62656-1:2014 specifies the logical structure for a set of spreadsheets, used as "data parcels", to define, transfer and register product ontologies. The spreadsheet interface structure defined in this part of IEC 62656 contains the following:
- Definition and specification of the logical structure and layout of the spreadsheet interface for definition, transfer, and registering of a reference dictionary;
- Definition and specification of library instance data belonging to a class of a reference dictionary described by a set of spreadsheets conformant to this part of IEC 62656;
- Definition and specification of the meta dictionary that enables the definition and transfer of a reference dictionary as a set of instance data conforming to the meta dictionary;
- Definition and specification of the meta-model as data that enables the definition and transfer of a reference dictionary as a set of instance data conforming to the meta-meta-dictionary;
- Specification of the mapping between the dictionary data expressed in the spreadsheet format and the EXPRESS model specified by IEC 61360-2/ISO 13584-42 (with some elements of ISO 13584-25);
- Description of the basic semantic mapping between the dictionary data expressed in the spreadsheet formats defined in this part of IEC 62656 and that of DIN 4002.