Figure 15.
The figure presents four graphs of material stock status (a, b, c, d) and one graph of cumulative stocking error (e). Graph (a) shows the base run with large fluctuations in stock levels often crossing maximum and minimum thresholds. Graph (b) represents accuracy control, where the fluctuations are smaller and stock levels remain closer to defined limits. Graph (c) shows stock control, with moderate oscillations over time. Graph (d) combines accuracy and stock control, producing greater stability and reducing deviations between thresholds. Graph (e) illustrates cumulative material stocking error, which increases over 100 months. Stock control accumulates the highest error with a steep rise, whereas accuracy control and the combined strategy limit error growth, while the base run maintains the lowest overall error. The comparison highlights that integrated strategies provide better stock stability and reduced error accumulation.Material stock status and stocking error under scenarios
Source: Authors’ own work