FFC reported that, historically, 30 to 50 percent of all construction change orders result from errors in the design documents directly related to improper interfaces between design disciplines (civil, structural, architectural, electrical, and mechanical).
60 to 90 percent of all construction change orders result from proper interfaces.
mnli hypothesis: 60 to 90 percent of all construction change orders result from proper interfaces. premise: FFC reported that, historically, 30 to 50 percent of all construction change orders result from errors in the design documents directly related to improper interfaces between design disciplines (civil, structural, architectural, electrical, and mechanical).