The National Building Information Modeling Standard-United States™ (NBIMS-US™) Project Committee has approved 18 submissions to be included in Version 2 of the standard. Areas addressed include – reference standards, information exchange standards, and best practices.
Approved reference standards:
- Industry Foundation Classes (IFC) 2×3
- World Wide Web Consortium (W3C) XML
- OmniClass Tables 13, 21, 22, 23, 32 and 36
- International Framework Dictionary (IFD) Library Update
Approved information exchange standards:
- Construction Operations Building information exchange (COBie)
- Information Delivery Manual/Model View Definition (IDM/MVD) Design to Spatial Program Validation
- IDM MVD Design to Building Energy Analysis
- IDM MVD Design to Quantity Takeoff
Approved best practices, guidelines and applications:
- BIM Project Execution Planning Guide – V2.1
- BIM Project Execution Plan Content – V2.1
- Minimum BIM
- Mechanical, Electrical and Plumbing (MEP) Coordination Requirements
- Planning, Executing and Managing Information Handovers
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Both…. BIM is a digital technology and a business process for life-cycle facility management, from concept thru disposal.
The below figure represents components of a BIM strategy.
What is a BIM?
The National Building Information Model Standard Project Committee defines BIM as:
Building Information Modeling (BIM) is a digital representation of physical and functional characteristics of a facility. A BIM is a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle; defined as existing from earliest conception to demolition.
A basic premise of BIM is collaboration by different stakeholders at different phases of the life cycle of a facility to insert, extract, update or modify information in the BIM to support and reflect the roles of that stakeholder.
The US National BIM Standard will promote the business requirements that BIM and BIM interchanges are based on:
- a shared digital representation,
- that the information contained in the model be interoperable (i.e.: allow computer to computer exchanges), and
- the exchange be based on open standards,
- the requirements for exchange must be capable of defining in contract language.
As a practical matter, BIM represents many things depending on one’s perspective:
- Applied to a project, BIM represents Information management—data contributed to and shared by all project participants. The right information to the right person at the right time.
- To project participants, BIM represents an interoperable process for project delivery—defining how individual teams work and how many teams work together to conceive, design, build & operate a facility.
- To the design team, BIM represents integrated design—leveraging technology solutions, encouraging creativity, providing more feedback, empowering a team.¹
NBIM standard will incorporate several elements described later in this document but the focus will be on standardized processes which define “business views” of data needed to accomplish a particular set of functions.