RAM Structural System can import from and export to a Bentley iTwin using the iTwin Services tools. This capability was previously referred to as Integrated Structural Model (ISM). This capability is used to facilitate importing and exporting RAM Structural System models to and from other analytical programs (such as STAAD) and BIM programs (such as Revit and Tekla).

Two significant purposes of an iTwin are:

1. The transfer of structural information between applications.
2. Change management, or the coordination of structural information between applications.

To provide for the first purpose (transferring information), iTwin Services provides a means of defining, storing, reading, and querying an iTwin.

To provide for the second purpose (change management), the iTwin Analytical Synchronizer provides capabilities to detect differences between models and to selectively (based on user selection) update either an iTwin or an application's data to provide a user-controlled level of consistency between the two data sets.

The iTwin is not intended to store all of the information that all of its client applications contain. Rather, it is intended to store and communicate a consensus view of data that is common to two or more of its client applications, such as RAM Structural System.

RAM Structural System continues to hold and maintain its own private copy of project data. Some of the application data will duplicate that of the associated iTwin repository. The application data may even conflict with that in the iTwin repository. RAM Structural System (or the user) may decide that a conflict gives the best data for the different uses in RAM Structural System versus iTwin.