What is BIM


BIM (Building Innovation Modeling) is designing a built project in a computer based environment integrating all the information about the scheme into a 3D model. The model in conjunction with the information is shared with the other parts of the design team and is managed in a structured way. After a project is finished the final BIM model will reflect the as built project. This can be used to monitor the performance of the new building over its life-cycle and for facilities management, thus achieving the goal of forging a connection between capital expenditure and operational costs.


BIM models are digital 3D models to represent a component of a building enriched with information.

This information is like the digital DNA of the 3D object. Initially it will have information about its identity, its cost and its technical specifications. As the project is being designed there will be information specific to a model in a project. This information is eventually updated to reflect what has actually been built. When looking back at the BIM project, it will be possible to trace the history of each of the BIM models and relate this back to its real counter part.

When talking about a BIM model there are two very important differences.

BIM product models

These product models are representations of modular manufactured products such as a table, a lamp or a gas oven. These models are modular in nature, should have a degree of dynamic functionality and should be full of manufacturer’s data at a projects initiation.

BIM project models

These project models represent the elements of the building such as the walls, the ceiling or building’s structure. These models are infinitely changeable and bespoke, should have a considerable amount of complex dynamic functionality and will gather a great deal more information specific to the project.

What is BIM?

The “I” in BIM Concept

Courtesy of GRAPHISOFT®

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