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AVEVA™ Unified Engineering

Change Highlighting

  • Last UpdatedAug 19, 2025
  • 3 minute read

Change Highlighting defines if and how modified data is highlighted on the isometric since a given Comparison Date.

The Change Highlighting function can be turned ON or OFF.

A Change Highlight colour can be selected and will be used for highlighting all changes.

If highlighting is switched ON, entries in tables and material lists, annotations, labels and dimensions will always be drawn in the selected highlight colour if they have changed since the comparison date.

Change Highlight Rules can be defined to specify which components are to be represented in the selected change highlight colour.

  • If no rules have been defined, then no components will be shown in the highlight colour.

  • If ALL components have been selected, but no conditions defined, then ALL components will be in the highlight colour regardless of whether anything has changed.

Using ELBO as an example:

  • If ELBO components have been selected, but no conditions defined, then all ELBOs will be in the highlight colour regardless of whether anything has changed.

  • If ELBO components have been selected with the MODIFIED() condition, then all ELBOs will be in the highlight colour only if the ELBO has changed.

  • If ELBO components have been selected with the MODIFIED(POS) condition, then all ELBOs will be in the highlight colour only if the Position of the ELBO has changed.

    Note: Any items deleted after the comparison date cannot be identified on the isometric. (They can be queried.)

The user must make sure that the options used on each run are the same. Differing options cannot be controlled by the program.

When labelling grouped components, such as 'F8 L9 G10 B11', in boxed text it will not be possible to isolate the changed item.

The user must look at the material list to see which of the grouped components has changed. This is particularly important for bolts and gaskets as these components are never represented on the isometric other than by label.

Change Highlighting options are set using the Change Highlighting form from the Options Create/Modify functions.

  • Checking the Show Change Highlighting check box sets the Change Highlighting function to ON, unchecking it sets the function to OFF.

  • Clicking Colour brings up the Highlight Colour window. Use this to select the desired highlight colour.

  • Use Create, Delete and Clear to:

  • Create a new Highlight Rule.

  • Delete a selected Highlight Rule.

  • Delete all Highlight Rules.

  • Use the For drop-down list to select a component type to be associated with the selected Highlight Rule. Use Add to make the association. Any number of components can be added as required.

  • If the user wants to remove a component type from the selected Highlight Rule, select the component type using the For drop-down list, then click Remove.

  • Use the With text box to add a qualifier to the component selected in the For drop-down list to make it more specific, for example: MODIFIED (POS) or CREATED().

  • Click Apply to save the current settings to the Option file.

  • Click Dismiss to close without saving any modifications made.

For syntax related to change highlighting refer to CHANGE HIGHLIGHTING.

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