Accepted service
Quality, context, concurrency, TTFT/throughput, reliability and economics are frozen before the intervention is judged.
Freeze the accepted-service contract, then let PEX find the minimum PASS, reproduce the adjacent FAIL, identify the binding resource and test the highest-value software/runtime or hardware intervention. The Sprint returns a causal baseline-versus-intervention decision—not just a benchmark score.
Machine-for-service and service-for-machine are evaluated together because a software change can alter the required machine and a hardware change can alter the best software configuration.
Quality, context, concurrency, TTFT/throughput, reliability and economics are frozen before the intervention is judged.
Minimum PASS → adjacent FAIL → binding resource. The actual limiter is named rather than inferred from generic utilization.
Test software/runtime choices such as quantization, KV policy, batching, placement, scheduling or compression, or a bounded hardware change when evidence points deeper.
Re-test the same accepted service and return the change in physical requirements, accepted service, energy/cost and the next newly binding resource.
The output is a qualified resource boundary tied to the service actually required.
The exact accepted outcome and acceptance metrics held fixed across baseline and intervention states.
Minimum PASS, adjacent FAIL, binding resource, relevant telemetry and the complete machine state around the boundary.
Measured or otherwise explicitly qualified software/hardware intervention effect with overheads separated from projection or third-party claims.
Deploy, retain current state, expand testing, open Economic Control, or move to a deeper design-in only when the evidence justifies it.