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A multi-dimensional tool, Building Information Modelling (BIM) involves generating a visual model of the building which also manages data about it, at the design stage, throughout the construction phase and during its working life. Typically BIM uses real-time, dynamic building modelling software working in3D,4D (workflow) and, increasingly,5D (quantity surveying) to increase productivity and efficiency, save costs in the design and construction stages, and to reduce running costs, after construction
Building Information Modelling (BIM) covers geometry, spatial relationships, light analysis, geographic information, quantities and properties of building components, project management and post-construction facilities management. BIM data can be used to illustrate the entire building life-cycle, from cradle to cradle, from inception and design to demolition and materials reuse; quantities and properties of materials, which can be easily extracted from the model; and the scope of works, including management of project targets and facilities management throughout the building's life. Furthermore, systems, components, assemblies and sequences can be shown in relative scale to each other and, in turn, relative to the entire project.
