10) Building Information Modeling (BIM)

Benefits of BIM

-improved quality of construction drawings -reduced time to prepare the initial and final construction drawings -quantities and shared properties of materials are easily extracted for cost estimating

Challenges of BIM

-limited availability of trained designers -consultants that use BIM -availability of ready-to-use BIM libraries from vendors and suppliers

Problems in the construction industry

-projects do not meet original program or budget -designer drawings are not typically sufficient for construction -materials used in construction become waste -cost caused by change orders

2D-3D CAD

Equivalent to conventional drafting only performed on a computer

Interoperability

The ability to manage and communicate electronic product and project data between collaborating firms and within individual companies, design, construction, maintenance and business process systems -ISO and IAI attempts at standardization

4D BIM

a 3D BIM that has objects and assemblies that have a schedule dimension (4D = 3D + schedule)

5D BIM

a 4D BIM that has objects and assemblies that have a cost dimension (5D = 4D + cost)

3D BIM

a model that includes 3D shape information

BIM

the process of generating and managing building data during its life cycle uses 3D, real-time, dynamic building modeling software to increase productivity in building design and construction a designer uses intelligent objects (families) to build the model