Classification Update File (CUF)


  • UseCase: Automated classification updates
  • NonUseCase: Viewing differences by human

Available for ECLASS Version



The main purpose of the Classification Update File (CUF) is to update classification relations for already classified products, if the classification structure has changed. This can be done by semi-automated update process that uses TUF from a previous ECLASS release to a later ECLASS release (BASIC and ADVANCED versions, XML). CUF contains the results of the changes to the classification by MOVESPLIT and JOIN operations, but it does not contain information about new and deleted classes.

This file is one among several supporting files (RUFTUF, CUF, SDF) which enable a user to update an ECLASS classified and property described material master to a new version. All of these files can be found here.

Files and Format

Figure 1 - CUF Overview (ECLASSXML-1.0)

There are two different XML files:

  • ECLASSXML 1.0 (until Release 7.0) is here.
  • ECLASSXML 2.0 (since Release 8.0 until Release 10.1) is here.
  • ECLASSXML 3.0 (since Release 11.0) is here.


Figure 2: Example MOVE CC

The file contains all structural changes of classes that were done by MOVEJOIN and/or SPLIT function. All predecessors and successors are listed in the file.


Example 1: MOVE (ECLASSXML-2.0)

The SourceClass 27250580 (ECLASS SourceRelease 7.1) was moved to the new TargetClass 19240101 as a sub-class of 19240100 in TargetRelease 8.0:

Figure 3: MOVE XML

This is documented in the CUF as follows:

Figure 4: Example JOIN CC

Example 2: JOIN (ECLASSXML-2.0)

The SourceClasses 27250590 and 27259090 (ECLASS SourceRelease 7.1) were joined into the TargetClass 19170190 in TargetRelease 8.0:

Figure 5: JOIN XML

This is documented in the CUF as follows:

Figure 6: Example SPLIT CC

Example 3: SPLIT (ECLASSXML-2.0)

The SourceClass 32139090 (ECLASS SourceRelease 7.1) was split into the new TargetClasses 32130190 and 32130290 in TargetRelease 8.0:

Figure 7: SPLIT XML

This is documented in the CUF as follows:


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