THE I IN BIM

The ‘Information’ incorporated in BIM Models is what sets them apart form the dumb 3Dimensional models developed only for design visualization. BIM Models have the capability to carry all kinds of information that is required in a building through out the building life-cycle. However, this can get overwhelming and complicated without having an organized procedure to manage the information at respective stages.

Dimensions in BIM

BIM Dimensions such as 3D, 4D, 5D etc classify the models based on the intended use for the models. Each BIM use requires a specific set of data set (project information) incorporated into its model elements. Categorizing project models based on its data will help to have a standardized model development and management process during the execution.

Level of Detail (LOD)

Level of Detail/Development is the term used to further categorize the models in various levels of completion. One of the prominently used standards for LOD is defined as 100,200 etc based on the amount of information incorporated in to the model either in 3D or in 2D. It is important to be aware that many LOD standards available in the industry should only be used as guidelines. Each project should have its own LOD Matrix based on the project uses and BIM goals.

One of the main challenges faced during execution is to manage and maintain the integrity of the information incorporated into the models. It is very easy for designers or model authors to get carried away and add 3Dimensional information not relevant for the BIM use. This can be avoided by having standards and templates in place. Quality check procedures should established to ensure that the models are following the right standards.