Manage RealTime data model extensions
- Last UpdatedApr 08, 2026
- 1 minute read
The Krunch Pipeline source examples provided with the installation rely upon the RealTime database (RTDB) model within the OASySDNA.RealTime.Data.Model.dll file.
For information on generating a new RTDB model, refer to the AVEVA Enterprise SCADA RealTime Developer documentation.
When you create extensions to RTDB, by default the system creates the following file for the extended data model:
%DeveloperEnvironment%\RealTime\lib\OASySDNA.RealTime.Data.Model.Extensions.dll
By default, the extended data model uses the same namespace as the baseline data model.
The system might create extensions of the RealTime data model for data types that are accessed within the code for the Krunch Pipeline. If this occurs, AVEVA recommends generating new extension database models with a unique namespace: this enables the system to reference both the baseline database model and the extension database model within both the Krunch Pipeline projects and code without collision. If you follow this recommended practice, you must override any Krunch Pipeline step or data converter that requires the extended data type and explicitly reference the extension namespace within the code and project.