Meaning
Quantitative supply chain models used to calculate optimal production allocation ratios between primary and secondary component manufacturers balance risk reduction against lost economies of scale. Parallel second sourcing arithmetic determines precise volume split percentages required to keep a secondary factory operational without inflating piece price unit costs excessively. The methodology applies to dual-sourced manufacturing frameworks, stopping where single-source supplier monopolies or non-split production tooling prevent volume division.
Volume Allocation
Procurement teams use split ratios such as 70-30 or 80-20 to maintain active production lines at both suppliers. Applying parallel second sourcing arithmetic ensures the secondary supplier receives sufficient production volume to maintain tooling readiness and quality standards. Low volume allocations risk line shutdown at the backup facility.
Cost Variance
Secondary suppliers frequently charge higher unit prices due to reduced order volumes. Calculations performed in parallel second sourcing arithmetic weigh incremental unit cost increases against potential losses from primary supplier disruptions. Optimized splits minimize total landed cost variance across global supply networks.
Risk Mitigation
Dual-sourcing protects manufacturing schedules against regional factory shutdowns or sudden quality failures. Under parallel second sourcing arithmetic, buyers maintain immediate capability to shift 100 percent of production volume to the secondary supplier during emergencies.