BIM or Building Information Modeling is the most discussed development in the area of 3D Architectural Computer Aided Design (CAD) today. BIM provides complete digital representation of building designs allowing all parties to share data and construction information with much ease and efficiency.
Previous developers of 3D CAD programs for construction did not succeed as the industry continued with low cost 2D, drawing-based working methodologies. The potential competency of an author and shared digital model was broadly understood, but visualized in theory not in practice. Once BIM software made available by industry leaders (such as Tekla, Revit, etc) with much user-friendly tools, it found wide acceptance for better information management in building construction projects.
Building Information Modeling or BIM takes 3D CAD systems to the next level. Usually a CAD program deals with 2D / 3D geometric units where the BIM deals with building entities and controls the relationships between them. The BIM approach quietly resembles a manufacturing supply chain where teams of various divisions together seamlessly together, with no wasted inventory cost, effort and time.
Benefits of Building Information Modeling or BIM Process:
# Improved client communications
# Speedy client approvals
# Better collaboration within design team
# Increased efficiency of the architects involved
# Design modifications can trigger automatic updates or detect need for revisions
# Reduced time on generating drawing and future revisions
# Architects and other engineering disciples can work simultaneously on a single model, allowing early detection of loopholes and less errors
# Improved construction efficiency
With BIM in use, projects can realize significant cost and time savings. This results from reduced costs of coordination and communication as the building goes through every stage of the construction lifecycle. Beside, the capability of BIM to incorporate data related to lighting, fixtures, access, migration, ventilation and so on means increased opportunity to utilize the model for strategic analysis and reproduction, offering better information for structural and architectural design optimization decisions.