If you’re researching as-built capture, you have likely run into a lot of terms that sound more or less the same. You’re not alone: Even professionals with significant industry experience can confuse the meanings of project status terminology as-designed, as-built, as-constructed, and as-is.
From an article by Sean Higgins.
Even though some people will use these terms interchangeably on projects, it’s important that you know the real meaning for each one. This will set you up to communicate clearly with your customers and reduce confusion.
This glossary will help by giving a basic explanation for the different “as” terms. And, since you’re a laser-scanning professional interested in 3D building capture, we’ll cover both the traditional meaning of the terms and what they mean in the context of building information modeling (BIM) methodology.
A necessary, if annoying, note: These terms also have quite specific legal meanings, which might differ in your region. This article is not intended to offer legal advice—if you need help with a contract, please contact an attorney or a regional organization like the American Institute of Architects (AIA).
As-designed
A record of the building design and specifications before construction begins. These are the deliverables of the architects, designers, and engineers.
Traditionally: 2D CAD drawings.
When using BIM: A federated BIM model, or a model that combines individual design models and other information from each design and engineering discipline. Sometimes called the design intent model.
As-built
The record of the building after construction has been completed, including all changes to work scope, materials installed, measurements, and so on. This record shows the geometry and location of all building elements completed under the contract.
It often differs substantially from the as-designed for reasons including rework, unexpected site conditions, and other changes to the original design as construction progresses.
For the complete article on project status terms CLICK HERE.
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