Batch Yield (BY)
Production efficiency across the synthesis labs. Drives the supply that keeps dose coverage steady.
Formula
Thresholds & Bands
| Band | Range | State |
|---|---|---|
| High | ≥ 92 | ok |
| Low | 80-92 | warn |
| Failing | < 80 | crit |
Why This Metric Matters
Batch Yield is the fundamental production-efficiency metric for the Directorate's synthesis laboratories — the percentage of usable product recovered from each manufacturing batch of compliance compounds, implant biologics, and pharmacological agents. Yield directly determines whether the Directorate can maintain its dose-coverage commitments without increasing raw-material consumption or production-line hours. A declining yield compresses the supply pipeline, forcing either stockpile drawdowns or reduced distribution volumes, both of which surface as degradation in downstream metrics like Dose Coverage and Stockpile Depth. Sustained low yield also signals potential process-control issues — contamination, equipment degradation, or formulation instability — that may compromise product quality as well as quantity.
Threshold Justification
The 92% "High" threshold represents the yield level at which current production scheduling and raw-material procurement are balanced to meet the Directorate's distribution commitments with adequate margin. Below 80%, yield losses consume enough raw material and production capacity that scheduled output can no longer sustain dose-coverage targets without emergency procurement or overtime production — both of which increase cost, operational exposure, and the risk of quality shortcuts. The 80-92% "Low" band triggers a mandatory process-review protocol to identify and correct the yield-loss root cause before it deteriorates further.
Historical Context
BY has been tracked per batch since the synthesis laboratories reached operational capacity in Q3 2024. Early batches of the Compound-7 compliance formulation yielded approximately 85% as process parameters were tuned. A series of process-optimization initiatives through early 2025 — including improved catalyst recycling, tighter temperature-control envelopes, and upgraded filtration systems — progressively raised the rolling average above 92%. The lowest recorded batch yield was 71%, attributed to a contaminated precursor shipment in Q1 2025 that required the entire batch to be reworked.
Collection Method
Yield is calculated per batch by the Manufacturing execution system at the point of final quality release. The system records the mass or unit count of usable product that passes QC inspection, divided by the theoretical maximum output for the batch based on input quantities and the validated process specification. Each batch's yield is logged individually and aggregated into rolling daily and weekly averages published to the Synaptic Data Fabric. Batches that fail QC entirely are recorded as 0% yield and included in the average.
Known Failure Modes
The most common metric distortion occurs when partially usable batches are reworked rather than rejected — reworked product that eventually passes QC is credited to the original batch, artificially inflating the yield figure by obscuring the initial failure. Yield calculations assume consistent input-material quality, but precursor variability between suppliers can produce yield swings that reflect supply-chain issues rather than process-control problems. Additionally, batches of different product types (small-molecule synthesis vs. biologic fermentation) have inherently different baseline yields, and the aggregate metric can mask deterioration in one product line when offset by strong performance in another.