Data Bricklaying Diary

Oct 28, 2026 · Artificial Intelligence

LLM vs Ontology vs Calculation: Who Owns Which Reasoning Step in Procurement?

The article dissects a procurement replenishment discrepancy (100 vs 60 units) by separating reasoning into five steps — question understanding (LLM), semantic mapping (ontology), data querying, rule-based calculation, and explanation — and stresses traceability, not treating missing data as zero, and ensuring generated output matches calculated results.