ISO 17972-1:2015

Overview

ISO 17972-1:2015 - Graphic technology - Colour data exchange format - Part 1: Relationship to CxF3 (CxF/X) defines a standardized, XML-based exchange format for colour data, process control data, and the associated metadata needed for unambiguous interpretation. Built on the publicly available Color Exchange Format (CxF) version 3 (CxF3), this part establishes base requirements for files that conform to CxF/X and enables interoperable data exchange across the graphic arts and adjacent workflows.

Key topics and technical requirements

• Base format: Uses CxF3 (XML) as the core representation; files typically use the “.cxf” extension and must include the CxF3 core namespace.
• FileInformation: A valid CxF/X file must contain Creator, CreationDate, and Description. The Description must include “CxF/X” and the applicable ISO part number. If used to support an ISO standard, the standard number should appear in Comment text.
• Resources (CxF3 Core): Central elements describe color objects (Objects), ColorSpecification, ColorValue, DeviceColorValue, ColorValues, DeviceColorValues, and PhysicalAttributes.
• CustomResources: Extensible area for application-specific metadata so files remain backward compatible with automated readers.
• Validation and schema: CxF/X files shall validate against the specified schema (sA3); CxF3_Core.xsd and supporting schema/diagram files are provided as electronic attachments.
• Mapping from legacy formats: Annex A maps ISO 28178 (ASCII keyword-value) to CxF elements to aid migration; guidance to preserve existing workflows is included.
• Extensibility & XML tooling: Uses standard XML names and metadata tags, enabling standard XML validation, parsing, multilingual support, and web-ready representations.

Applications and users

• Practical uses:
  • Exchange of measured and computed color data for prepress, proofing, and production verification.
  • Spot color characterization, scanner and printer target data exchange (other ISO 17972 parts expand these uses).
  • Automated process control, archival of color measurement manifests, and vendor-neutral data interchange.
• Typical users:
  • Color management engineers, prepress specialists, print service providers.
  • Software developers of RIPs, MIS, color QC tools, and laboratory information systems.
  • Standards bodies and quality assurance teams needing validated, machine-readable color data exchange.

Related standards

• ISO 28178 (legacy ASCII color exchange mapping)
• ISO 12642 and ISO 13655 (workflow and measurement reporting context)
• Other parts of ISO 17972 (Part 4: CxF/X-4 for spot color; Parts 2 & 3 under development for scanner/printer targets)

ISO 17972-1:2015 streamlines accurate, extensible color data exchange using CxF3 and XML, promoting interoperability and automated color quality control across graphic technology workflows.