PROTOTYPE TEST BRIEF Project and model revision: The decision this build must support: What is already known: What remains uncertain: Intended use of this prototype: What this prototype will NOT establish: Critical features / interfaces: Proposed process and material, subject to supplier review: Mating parts or reference components provided: Review / test conditions: Evidence to deliver (photos, observations, measurements, report): Acceptance conditions to agree: Who performs the check: Who reviews the evidence: Who approves another revision: Budget and date constraints: Result observed: Next decision and owner: