Can someone please shed some light regarding the recommended types of specifications (similarly for cost estimating methods) to be used on each project phase?
Reading through the AHPP, it seems to have conflicting (or at least confusing) information about Outline Specifications. In page 525, it states:
"Outline specifcations are a simple way to define building components at the schematic
level. Generally organized by CSI division, the outline should include material
descriptions and quality level, as well as actual proposed product data whenever
Then on page 694 it states:
"At the schematic design level, communicating basic knowledge and design direction
is important, especially as basic material and system selection develops. One
method often used by architects is a narrative where the basis materials and elements
of the building are communicated.
Another means, growing in popularity, is a specifcation tool known as UniFormat,
developed by the Construction Specif cations Institute (CSI)....These
elements are often referred to as systems or assemblies.
At the design development level, outline specifcations are often the solution to
communicate materials, products, and systems."
On cost estimating, he P&A video from Black Spectacles suggests that the Assemblies (AKA Systems) method should be used at the end of the Design Development phase.
Can anyone please clarify when to used each method?
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