For manufacturing, assembly or test arrangements as well as for suppliers and external manufacturers, it is very important to be able to quickly and completely record changes to a drawing. For this reason, designers describe the modifications that are made when creating a new version of a drawing. However, these amendments are not always complete or misleading.

This is where our software solution DIFFERENCE VIEWS provides automatic and complete documentation of all changes compared to the previous version. An automatic pixel comparison of the new version with the predecessor version is carried out starting from of the neutral format files (PDF, TIFF) and the changes in a file are recorded in three colors (red, blue, black). These differential views are available to every authorized person at the push of a button.

Functionalities of the standard system

Automatic comparison when a drawing is released

Our software determines the differences between two versions of a drawing on the basis of the neutral format files and maps the differences in different colors. The system starts automatically when a new drawing version is released. The first step is to search for the previous version in the SAP system. From both versions the neutral files are filtered out and passed to our software. There, a raster version is first produced from the neutrals. The framework lines are covered before processing. Then the drawings are compared.

Clear presentation

The differences between the drawings are then visible at a glance:

  • All drawing parts missing in the new version are shown in red.
  • All drawing parts which were not yet available in the old version are displayed in blue.
  • All drawing parts which are available in both versions, are displayed in black.

If desired, the generated difference view can be stamped with the text "Difference view between version n and m" so that even with the output on a monochrome printer no confusion with a normal drawing can occur. In addition, it is clear at a glance which versions were compared.

Integration with SAP

Our software is designed in such a way that it can also be integrated into existing processes outside of SAP. You will receive a results file that contains all information about the resulting difference view and can be processed by another program. The difference views are automatically added to the SAP document data record when the new version is released. This eliminates the complex search for differences and the often incomplete and inadequate written documentation by the designers is largely superfluous.

As a result, workflows in construction, work preparation, production and assembly are considerably accelerated.

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