How does BIM fundamentally differ from CAD?

BIM fundamentally differs from CAD in that BIM represents objects with named elements, which encapsulate the data and attributes related to those objects, while CAD primarily relies on basic geometric shapes such as points, lines, and polygons to create representations of objects. This distinction is essential, as BIM allows for the integration of various types of data beyond just geometry, such as material properties, cost estimates, and spatial relationships.

With BIM, each element (such as walls, doors, or windows) is part of a rich database that provides detailed information about that element, making it easier to manage and manipulate within a project. In contrast, CAD offers a more straightforward method of drawing that relies heavily on 2D and sometimes 3D representations without the complex data relationships that BIM provides. This makes BIM far more suitable for managing the lifecycle of a project, enhancing collaboration, and improving decision-making compared to traditional CAD methods.