Common Terminology - Intergraph Smart 3D - Administration & Configuration - Hexagon PPM

Intergraph Smart 3D Integration - Project As-Built with HxGN SDx

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Certain terms carry a specific connotation for their usage within the context of Smart 3D and SDx integration. The following terms are used frequently when you are working with As-Built projects.


Describes the digital model intended to accurately represent the physical model as it was built (constructed). Objects in the as-built model contain property values (for example, contractor or industry commodity codes) that associate the model objects to physical objects in the model.


Describes a physical asset (model) that is undergoing a revamp, retrofit, or new construction (after demolition).

Change Action/Project

Defines a design change or set of changes to be performed on an As-Built facility. Typically, a project begins in the design world and then progresses to the physical world when the actual construction is approved. All changes to the As-Built facility are performed within the context of a project under strict change control.

Change Management Model

Serves as a container for As-Built projects and supports the use of of SDx integration commands such as assigning As-Built projects or synchronizing Smart Interop Object data between Smart 3D and SDx.

When you create a new Smart 3D model, you set the Model Purpose to Standard or to Change Management. The default setting is Standard.


Reserves objects to be modified as part of a project.

Digital Twin

Provides a virtual representation of the physical 3D model. The digital twin contains all the essential data (the 3D graphics, drawings, and model data) for operations and maintenance of the Smart 3D physical asset.

As-Built and Digital Twin are used interchangeably in this document.


Describes the design and construction activities at a new location or an addition to an existing facility.


Describes the transfer of engineering data and project documentation captured during the design and build phase of a Smart 3D model to the operations team.


Consolidates changes from a completed and approved project into the As-Built model.

Native Object

Describes an object created in the Smart 3D application. Fit for purpose for design.

Operations and Maintenance (O&M)

Includes the day-to-day activities needed for a facility and its systems and equipment to perform their intended function. Operations implies that the built facility fulfills its intended purpose. Maintenance implies that we service the built facility, or infrastructure, so that it operates consistently and safely.


Serves as the central data repository for the digital asset information associated with As-Built models and projects.


Designates the Smart 3D model database to associate with SDx (Plant). A unique signature is created for each model that is registered with SDx. When you create a new project, the signature that you assign identifies the related model.

Share/Synchronize to SDx

Sends data and graphics to SDx from Smart 3D.

SIO (Smart Interop Object)

Describes an object fit for purpose for Operations and Maintenance. Smart Interop Objects can be generated from native Smart 3D objects, PDS data, and/or PDMS data.

Subscribe/Synchronize from SDx

Sends data and graphics from SDx to Smart 3D.

Work Area

Describes the read-only part of the As-Built model that is synchronized from SDx into a Smart 3D model to provide context for the project.