Structural discipline “parts,” or members are intelligent 3D models of accurately defined items of structural design. Structural discipline is delivered with predefined parts and part families; however, you can define new parts and part families to suit any specific project type you may have. Part/Families data includes the default symbology definitions for Structural physical and analytical members used for both design and drawing environments. Part/Family data also includes Structural data, Structural attributes and user defined structural data used in analytical translation between Structural discipline and external analysis programs.

The DataGroup System is a data schema utility common to all Building Designer applications. In Structural discipline, it manages extended Structural data and attributes as well as Part/Family data. It is integral to various Structural discipline functions including Analytical Translation and Automated Structural Drawings.