Table 2.
Process capability index factor.
| F1 (19) | Factor loading | Bottleneck variables |
|---|---|---|
| 14 | -0.635 | Non-conforming material |
| 20 | -0.686 | Energy |
| 22 | -0.832 | Equipment failure |
| 23 | -0.739 | Market demand |
| 34 | -0.577 | Labour insufficiency |
| 37 | -0.781 | Machine breakdown |
| 38 | -0.640 | Machine repair |
| 39 | -0.709 | Tools unavailability |
| 40 | -0.618 | Materials |
| 41 | -0.580 | Multi-stage supply logistics |
| 42 | -0.780 | Operations |
| 43 | -0.637 | Operators skills |
| 45 | -0.765 | Preventive maintenance |
| 62 | -0.651 | Resources shortage |
| 63 | -0.533 | Scheduling policies |
| 66 | -0.769 | Supply constraints |
| 67 | -0.529 | Task time variation |
| 69 | -0.811 | Material unavailability |
| 70 | -0.615 | Unscheduled downtime |