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  "formatName": "Initial Graphics Exchange Specification (IGES)",
  "version": "5.x",
  "formatDescription": "Initial Graphics Exchange Specification, or IGES, establishes information structures for the digital representation and exchange of product definition data. It supports exchanging this data among Computer-Aided Design and Computer-Aided Manufacturing (CAD and CAM, respectively) systems.  IGES defines file structure and language formats to represent geometric, topographical, and non-geometric product definition data.  These formats are independent of the modeling method used, and they support data exchange using physical media or electronic communication protocols.",
  "releaseDate": "01 Dec 1999",
  "binaryFileFormat": "Text",
  "formatNote": null,
  "lastUpdatedDate": "28 Aug 2012",
  "formatProvenance": "Further information about this file format can be obtained at \r\nhttp://www.wiz-worx.com/iges5x/version5x/version5x.pdf",
  "formatSourceDate": "02 Aug 2005",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Model",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "model/iges",
      "identifierType": "MIME"
    },
    {
      "identifierText": "x-fmt/158",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [
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      "name": "Initial Graphics Exchange Specification",
      "note": "Offset 72 bytes, then section identification character S for Start section; Columns 74-80, section sequence number 1 preceded by leading blanks or zeros; cr/lf or nl;  (Column 73, section identification character S for Start section; Columns 74-80, section sequence number 2 preceded by leading blanks or zeros) or (Column 73, section identification character G for Global section; Columns 74-80, section sequence number 1 preceded by leading blanks or zeros)",
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          "endianness": null,
          "byteSequenceID": 575
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      ],
      "provenance": "Signature identified by Georgia Tech Research Institute. Updated by Digital preservation department. Later updated by Canadian Centre for Architecture September 2018."
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "iges",
      "signatureType": "File extension"
    },
    {
      "externalSignature": "igs",
      "signatureType": "File extension"
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