The ECCMA Open Technical Dictionary (eOTD) is an open public registry of terminology from international and national standards, as well as, from industry associations. It resembles any other dictionary with the addition of public domain concept and terminology identifiers.
The eOTD also provides a public registry of localizations. They are not literal translations of a term or a definition, but rather the terms and definitions used to describe the concept in a language as spoken in a specific region. For example, French as spoken in France, or French as spoken in Canada.
Finally, the eOTD provides a public registry of concept mappings. This is very important because it allows different groups to maintain their own terminology while mapping to the terminology used by other groups. For example, mapping between the concept of, “interior diameter” and “bore.” Both terms are used in different industries, but mean the same thing. The eOTD links the two concepts with the permission of the controllers of the two entries in the eOTD. This process is called a public mapping. In practice, eOTD identifiers are used to encode data turning it into unambiguous, language independent, portable data. To decode the identifiers you simply use the eOTD and look up the terminology associated with the identifier.
The eOTD also conforms to ISO 22745, the international standard that defines the structure and administration of an open technical dictionary. The eOTD is available free to the general public through a web services interface. There is not a license required to use the eOTD. The eOTD concept identifiers are in the public domain, they may be used or distributed without license and can be safely embedded in data without the risk of creating a joint copyright.