Calculations of product benchmarks for each component for Product Report

AdjU_i

Adjusted number of units for the i^th component

AdjU_i = C_i * BU

If complexity is not used, AdjU_i = ObsU_i

AdjD_i

Adjusted number of defects for the i^th component

If complexity is not used, AdjD_i = ObsD_i

AdjTO_i

Adjusted total number of opportunities for the i^th component

AdjTO_i = AdjU_i * O_i

If complexity is not used, AdjTO_i = ObsU_iO_i

DPO_i

Number of defects per total opportunity for the i^th component

DPU_i

Number of defects per unit for the i^th component

DPMO_i

Defects per million opportunities for the i^th component

DPMO_i = DPO_i * 10⁶

Z ST_i

Benchmark Z (short-term) for the i^th component

Z ST_i = Φ^-1(1 – DPO_i) + Shift_i

YTP_i

Throughput yield for the i^th component

YTP_i = (1 – DPO_i)^O_i

YRT_i

Rolled throughput yield for the i^th component

YRT_i = (YTP_i)^C_i

If complexity is not used, YRT_i = YTP_i

TD

Adjusted total defects

TD = Σ(AdjD_i)

TDPO

Adjusted total defects per opportunity

TDPMO

Total defects per million opportunity

TDPMO = TDPO * 10⁶

TShift

Combined shift factor

Z.Bench

Combined benchmark Z (short-term)

Z.Bench = Φ^-1(1 – TDPO) + TShift

Notation

Term	Description
ObsU_i	Observed number of units for the i^th component
O_i	Number of opportunities per unit for the i^th component
ObsD_i	Observed number of defects for the i^th component
Shift_i	Shift factor for the i^th component
BU	Number of base units
C_i	Complexity for the i^th component