Use Case: Model-based check of Unit Labeling System (ULS) to schema’s

By supplementing a unit labeling system (ULS) to the individual components in the different disciplines, an automatic comparison between models and principle and branch scheme can be carried out. The test is part of the regular continuous planning test of the different disciplines and the building automation in order to increase the quality between models and principle and / or branch schemes.


• Increased planning quality and thus increased planning and execution quality • Reduction of subsequent work around the switchgear assembly on site


• Increasing the quality within the documentation to the building automation planner or contractor • Eliminate contradictions between BIM model and principle / branch scheme


• Client-specific plant design concept • Centralized directories of attachments and naming conventions • Resource lists of the building automation planner


• Automatic assignment of unit labeling system (ULS) attributes to the elements • Completeness of the modeled elements in the model


Project Group

• Ralph Bachofen / ahochn AG • Interested experts with BIM experience can participate in this use case


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The use cases reflect the current best practice do not claim to be complete. Use cases shall be understood in the sense of a generally accepted recommendation or guideline from a legal point of view, but rather to support the client and contractor in the application of the BIM method. The use cases must be adapted to the specific project requirements. The examples listed here are not exhaustive. Information is based on real-world insights and is therefore to be understood as best practice and not universally valid. Since we are in a phase where definitions are only emerging, Bauen digital Schweiz can not guarantee the accuracy of individual content.

  • GUID : 1872F6C6-3B3F-4C2D-B5EA-BE448B4DBFB1
  • Identifier : -
  • Work Stage : SIA 112
  • Revision : Rev 1.0
  • Project Status : Draft
  • Maturity level : Outlook
  • Level 1: In Progress
  • Level 2: In Progress
  • Level 3: In Progress
  • Published on: Oct 17, 2019
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