Exchange Job Definition Format
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XJDF (Exchange Job Definition Format) © 2015 by CIP4 is licensed under CC BY-SA 4.0
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| Developed by | CIP4 |
|---|---|
| Latest release | 2.1 (16 August 2020) |
| Type of format | Digital print |
| Extended from | XML |
| Website | www |
XJDF (Exchange Job Definition Format) is a XML-based technical standard developed by the graphic arts industry to facilitate cross-vendor workflow implementations of the application domain. It is an XML format, providing job ticket, message description, and message interchange. XJDF development is managed by CIP4®[1] The CIP4 organization is a not-for-profit standards association, whose mission is to foster the adoption of process automation in the printing industry.
More than 120 organizations participate in XJDF development and implementations. They include member companies who manufacture equipment & technology for the production printing industry, integration services, and more than a dozen universities. In addition there are relationships with a number of adjacent standards organizations. [2][3] [4]
Why XJDF?. . . to enable workflow automation and interoperability in the commercial printing industry. Automated communication between pre-press, printing, finishing devices, and customers can substantially reduce setup times on equipment, waiting times between processes, and costs. While sourcing all equipment in a facility from a single manufacturer would simplify interoperability, it's uncommon, and in many instances impractical. The solution was for manufacturers of printing technology to coalesce around a pair of standards to accomplish that workflow automation: PDF, combined with XJDF. In 1999, four companies (Adobe, Agfa, Heidelberg, and ManRoland) created the CIP3 standards organization, and encouraged all interested manufacturers to participate in creating an XML-based interoperability language, which has evolved to become today's XJDF open-standard from CIP4.[5]
XJDF is an independent open-standard, but is also incorporated in an ISO PDF standard, which describes adding CIP4's XJDF metadata within a PDF file. PDF specifies the page image. Integration of XJDF "Intent" within an ISO-conforming PDF file's document part metadata can additionally specify: media to be printed on, binding method, simplex/duplex, folding, delivery address and more; all in a device independent manner. Within a [PDF/VT] file, XJDF may also specify variable elements.[6]
XJDF relationship to JDF[edit]
Both were developed by CIP4. In 2018, the newer Exchange Job Definition Format (XJDF) and its supporting XJMF messaging format were published. Due to evolving and more-demanding workflow requirements in the printing industry, a comprehensive redesign was required in the structure of JDF Job Definition Format, creating XJDF. However, both formats can be converted into each other and both formats (legacy JDF or modern XJDF) are often successfully deployed in parallel in the graphic arts industry.[7]
New development is primarily focused on XJDF, but continued maintenance of both versions of the specifications by CIP4 provides options to industry stakeholders wishing to implement XJDF, legacy JDF, or both into their product offerings and production environments.
Whereas JDF attempts to provide a model of an entire print production workflow including all interdependencies of processes and resources, XJDF is a pure interface format and the interdependencies are assumed to be tracked in an internal model of a controller or Management information system.
References[edit]
- Stefan Meissner, 2017: XJDF - Exchange Job Definition Format, RiceBean, ISBN-13: 978-3000556043. http://ricebean.net/xjdf-book.
- Thomas Hoffmann-Walbeck & Sebastian Riegel, 2012: JDF Workflow: A Guide to Automation in the Graphic Communications Industry, Printing Industries of America, ISBN-13: 978-0883627181.
- XJDF Whitepaper: Print Automation and Print 4.0 published by the German Printing and Media Industries Federation (bvdm), 3.9MB
- Slide presentation: Process Automation with XJDF, JDF and PDF by Dr. Rainer Prosi, Sr. Software Architect for Heidelberg, and CTO of the CIP4 organization .
External links[edit]
- XJDF v2.1 complete specification, PDF download from CIP4.org, (27.4MB)
This article "Exchange Job Definition Format" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:Exchange Job Definition Format. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.
- ↑ "CIP4.org Home Page"., CIP4's cumbersome legal name: "International Cooperation for the Integration of Processes in Prepress, Press and Postpress organization" is commonly abbreviated to simply CIP4.
- ↑ CIP4 organization members: https://www.cip4.org/who-is-cip4/members.html
- ↑ CIP4 organization as described by Ghent Workgroup (GWG): https://gwg.org/project/cip4/ GWG's 1v4 specification has, for many years, been the de facto standard for exchange of PDF documents in the print and publishing industry.
- ↑ "ISO liaison". CIP4 is a recognized contributor organization that has a liaison agreement with ISO
- ↑ CIP4 creation history, from Prepressure magazine: https://www.prepressure.com/jdf/basics/history
- ↑ "ISO/DIS 21812-1(en) Graphic technology — Digital data exchange — Print product metadata for PDF files — Part 1: Architecture and core requirements for metadata"., see section 7 in table of contents
- ↑ Stefan Meissner, 2017: XJDF - Exchange Job Definition Format, RiceBean, ISBN-13: 978-3000556043
