Semantic Model
The engineering layer beneath every metric, link, and recommendation
Entity relationship graph
Site→
Area→
Tool→
Chamber→
Recipe→
RecipeStep→
Signal→
Lot→
Carrier→
Substrate→
MaterialLot→
WorkOrder→
Calibration→
Lockout→
EnvReading→
QualityEvent→
ControlPlan
source_system: Semantic registrycaptured_at: 2026-09-18 09:27:52 ISTwrite_principal: yieldos.ingest
Registry status
1,840
signals1,712
auto-mapped14
relations128
pending reviewSignal registry
| Tag | Asset | Process | KPI | Principal | Source | Method | Confidence |
|---|---|---|---|---|---|---|---|
| WB04::CH1::UPPRESS | WB-04/Chamber 1 | Wire Bond | Tool Availability | kiran.agent | OPC UA · ns=2;i=14 | SLM + pattern | 94% |
Metric definition as code
metric: dpw_pct expression: passed_units / tested_units * 100 grain: lot, shift, site owner: quality.analytics definition: one across all sites
Data lineage
OPC UA / MES→Parse→Semantic transform→dpw_pct→Yield screen
Human review queue 128 pending
WB04::CH1::UPPRESS → WB-04 / Chamber 1 / pressure
SLM + pattern · confidence 0.94