Aerospace OEMs usually coordinate quality requirements through flowed-down contractual clauses, controlled specifications, approved supplier processes, first article and change approval workflows, traceability expectations, and structured NCR or CAPA handling. In practice, this depends heavily on data discipline, version control, integration quality, and supplier process maturity across a mixed multi-tier supply base.

Usually no, not by default across suppliers. In most regulated and competitive environments, supplier KPI visibility is segmented so each supplier sees only its own scorecards, required actions, and sometimes benchmark context if anonymized. Whether cross-supplier visibility is possible depends on access controls, data governance, contractual limits, and how the platform is configured and validated.

Tier-1 suppliers usually should share enough sub-tier data to support risk, continuity, traceability, and change control, but not necessarily full commercial transparency. The right scope depends on contract terms, program criticality, export controls, data classification, and the buyer's ability to govern and use the data consistently.

OEMs can improve real-time visibility at critical suppliers by combining well-governed data sharing agreements, minimal but standardized status signals, and lightweight digital connections into supplier MES/ERP or portals. Expect variability by supplier: legacy systems, cybersecurity constraints, and validation needs mean that full real-time transparency is rarely plug-and-play and often must coexist with existing scorecards and manual updates.

Aerospace supply chain resilience improves most when OEMs and tier-1s share a small, well-governed set of demand, configuration, and disruption signals, and suppliers return a focused set of capacity, constraint, and quality data. The key is to standardize and automate a minimal data set, integrate with existing ERP/MES/QMS where possible, and avoid turning suppliers into systems integrators.

Aerospace OEMs should not try to expose detailed execution data across the entire supply base at once. Prioritize high-impact suppliers: complex, special-process, and qualification-heavy parts; single-source and long-lead items; chronic quality or OTD issues; and tier‑1 integrators. Selection must reflect real risk, data readiness, and integration constraints.