The project management technique of constructibility.(noun)
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Use "buildability" in a sentence
"That thing should be built, regardless of buildability, scientific merit and cost."
"I am hoping that if you download it and build it, you will give me feedback, and help me to inprove the buildability, and correct any errors in the model."
"A VW/MMO with as much flexibility and as many tools and meta-tools and user buildability as the real world would be... uh... the real world."