The following three use cases are currently standard in projects:
Providing as-built models for project planning.
For project planning purposes, the contractor creates the as-built models and makes them available to the entire project team. The contractor uses its own data, data from inventory systems, and other third-party data as the basis for these discipline-specific models.
Providing up-to-date discipline-specific models during planning and construction.
For the planning and building phase, the contractor creates up-to-date discipline-specific models in the appropriate BIM authoring tools. The models must be of the quality specified by SBB and comply with the Exchange Information Requirements (EIR).
Model-based collaboration.
The contractor plans the model-based collaboration and specifies it in the BIM Execution Plan (BEP). This includes the following tasks:
- Coordinating discipline-specific models in project planning and implementation
- Performing issue tracking with object-related comments in BIM Collaboration Format (BCF)
- Aggregating the planning information developed in a single coordination model (federation)
- Making the merged information available to other project participants in the appropriate phase
The BIM service catalogue describes the use cases in more detail, including partial services and results. It also defines who is responsible for which services and in which phase the services are to be performed.
