Experts say version two of the nation’s first consensus standard for the setup and exchange of building information models advances the use of BIM by providing a road map and common language for model building.

“This is truly a big change,” says Deke Smith, executive director of the buildingSMART alliance of the National Institute of Building Sciences and the standard’s developer. But he also says there is much work to do and obstacles to overcome on the way to a more mature standard. “We have only scratched the surface on these efforts,” he says of the version that came out last month. Work on the standard’s third version starts in August.

The Washington, D.C., alliance is responsible for developing the National Building Information Model Standard-United States Version 2 (NBIMS-US V2). The group’s main goal is to help the practitioner who is attempting to implement BIM. Another goal is to provide information for the next generation of software, after people have changed the way they do business and can take full advantage of BIM, says Smith.

该标准的目的是提供一种组织和分类与设施一生相关的电子对象数据的方法。软件开发人员供应商的部分提供由盟军组织制定的参考标准，以及标准项目委员会编写和投票的交换标准。对于BIM用户，该标准包含最佳实践指南等。

The general consensus is that the standard helps address the needs of facility owners and practitioners looking for BIM guidance. Moreover, the standard will serve as a catalyst for defining data exchanges and advancing BIM best practices in other countries.

许多供应商将发布标准的发布视为向前迈出的重要一步。对于Archicad供应商Graphisoft，它是由联盟成员领导的开放BIM计划的验证。该计划是基于开放参考标准，信息交换标准，最佳实践和工作流程的建筑物的协作设计，实现和运营的普遍方法 - 尤其是基于行业基金会类（IFC）的互操作性。

其他s are more circumspect. “I think, at some point, vendors will incorporate NBIMS or parts of it into their various authoring tools,” says Robert Anderson, vice president for integrated practice for 3D software vendor Nemetchek Vectorworks, which also owns Graphisoft. “So far, they really haven’t,” he adds, explaining that Vectorworks’ big push is toward meeting IFC certification, not NBIMS.

Think of IFC as a brick and NBIMS, based on IFCs, as the building, he says. “It doesn’t make sense to work on NBIMS until IFCs are in working order.”

The parts of NBIMS that software developers can implement are the model view definitions, he explains. MVDs are more tightly defined ways of transferring information using IFCs.

NBIMS发展存在无数的技术和文化障碍。工程软件供应商Bentley Systems Inc.的副总裁Huw Roberts表示，该行业需要更多的所有者参与和验证标准。