Still one element missing.

We said in our previous blogs that  “Only the structured participation of the expectation’s owners can ensure that the failure is noticed and prevented.” That participation includes acceptance testing at all stages of the project. Acceptance requires work, and work must be budgeted, planned, and scheduled. Acceptance testing requires as much work from sellers as it does from buyers. No seller will agree to participate in thorough acceptance testing that they didn’t bid, and they can’t be expected to bid it unless they’re told in advance that they’ll be required to participate in it.