Multi-Tier BOM Visibility
The ability to see the full supply chain structure below a product's immediate Tier 1 supplier layer — identifying Tier 2 and sub-tier suppliers of critical components, their geographic concentration, and their capacity constraints.
Why it matters
Single-tier visibility creates false confidence in supply chain resilience. The most severe disruptions originate below the first-tier level and are invisible without multi-tier data. PLM must connect to supply chain intelligence platforms to surface this visibility at the BOM level.
External References
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Cite this definition
Finocchiaro, Michael. “Multi-Tier BOM Visibility.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/multi-tier-bom-visibility