Editing Job Definition Format (section)

===Considerations on JDF atomic processes===

====ColorSpaceConversion====
In a production workflow with proofing, there must be both the conversion of the input asset color spaces to the press color space and the one of press color space to the proofer color space. So in JDF two different ColorSpaceConversion processes are required and depending on the exact workflow and on the capabilities of the devices, they can be included in the same combined process.

====Interpreting and rendering====
Input data to the proofing combined process usually required both interpreting (with the exception of JDF ByteMap) and rendering. In these cases they will be included in the combined process describing the proofing step.

====Screening====
Two possibilities:
* Proofer can emulate the screening of the press: Screening should be performed once at the ripping combined process and the halftoned data should be sent directly to the proofing combined process.
* Proofer is a "contone proofer": one Screening process for the press and one for the proofer.

====ImageSetting/Digital Printing====
For printing the proof ImageSetting/DigitalPrinting process has to be specified at the end of the proofing combined process in order to define how the proof is actually printed.

====Approval====
Must be executed before the final production printing can be started.