6D BIM, an acronym for 6D Building Information Modeling and a term widely used in the Construction industry, refers to the intelligent linking of individual 3D CAD components or assemblies with all aspects of project life-cycle management information. It is an innovative construction methodology which helps Contractor to Manage, Optimise, Review and Feedback 3 additional dimensions namely Weight/Material/Resources(4th Dimension), Time/Schedule(5th Dimension) and Estimate/Cost/Expenditure (6th Dimension) of a construction project utilizing a BIM 3D model. This methodology was first introduced by "AceCad Software Limited". http://http://www.acecadsoftware.com/en/construction_management_software. in their software Product "StruMIS". http://http://http://www.acecadsoftware.com/en/steel_fabrication_management_software. The 6D model is usually delivered to the owner, when a construction project is ready to be closed-out. The “As-Built” BIM model is populated with all relevant building component information such as product data and details, maintenance/operation manuals, cut sheet specifications, photos, warranty data, web links to product online sources, manufacturer information and contacts, etc. This information-centric database is made globally accessible to the users/owners through a customized proprietary secure web-based environment. The accuracy of 6D BIM aids facilities managers in the operation and maintenance of the facility throughout its life cycle.