The final lesson states the boundary: this is fixed-order deterministic balancing.

highlighted = computed this step

Fixed order

The packing keeps the fixed task order.

fixed-order deterministic packing\text{fixed-order deterministic packing}
Line efficiencyThe chart shows total work, idle time, and line efficiency.line efficiencycycle time 480 / 120 = 4 min/unitstation 1A 1B 2idle 13station 2C 3idle 13station 3D 2idle 22stationtasksloadidle1A+B312C313D22total work 8; idle 4; efficiency 2/3

Not a global proof

This does not prove a global assembly-line optimum.

not a global optimum proof\text{not a global optimum proof}
Line efficiencyThe chart shows total work, idle time, and line efficiency.line efficiencycycle time 480 / 120 = 4 min/unitstation 1A 1B 2idle 13station 2C 3idle 13station 3D 2idle 22stationtasksloadidle1A+B312C313D22total work 8; idle 4; efficiency 2/3

Not modeled

It does not prove ergonomic feasibility, parallel work, or stochastic task times.

outside scope: ergonomics and uncertainty\text{outside scope: ergonomics and uncertainty}
Line efficiencyThe chart shows total work, idle time, and line efficiency.line efficiencycycle time 480 / 120 = 4 min/unitstation 1A 1B 2idle 13station 2C 3idle 13station 3D 2idle 22stationtasksloadidle1A+B312C313D22total work 8; idle 4; efficiency 2/3

Honesty note

This is fixed-order deterministic line-balancing arithmetic. It is not a proof of ergonomic feasibility, parallel work, stochastic task times, or a global assembly-line optimum.

fixed-order deterministic balancing only\text{fixed-order deterministic balancing only}
Line efficiencyThe chart shows total work, idle time, and line efficiency.line efficiencycycle time 480 / 120 = 4 min/unitstation 1A 1B 2idle 13station 2C 3idle 13station 3D 2idle 22stationtasksloadidle1A+B312C313D22total work 8; idle 4; efficiency 2/3