OEMs can improve Tier-2 and Tier-3 visibility, but usually not by forcing full-stack replacement across the supply base. In aerospace, practical visibility comes from phased data sharing, supplier portals, milestone reporting, traceability requirements, and targeted integration around critical parts, quality events, and constrained capacity. Results depend on supplier participation, data quality, governance, and validation.

An aerospace supplier scorecard should not be built around on-time delivery alone. It should balance delivery, quality, responsiveness, traceability, and risk signals, with definitions tight enough to survive audit scrutiny and system handoffs. The right KPI set depends on part criticality, process maturity, data quality, and how well ERP, MES, QMS, and supplier workflows are integrated.

There is no single correct review cadence. In aerospace, supplier performance data is usually monitored continuously or weekly for critical signals, reviewed monthly for operational control, and reassessed quarterly for strategic decisions. The right frequency depends on part criticality, supplier risk, volume, lead times, data quality, and how well ERP, MES, QMS, and receiving systems are integrated.

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.

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.

Visibility is harder in aerospace manufacturing because data is fragmented across long‑lived legacy systems, tight regulatory controls slow change, and complex multi-tier supply chains add blind spots. Traceability, configuration control, validation requirements, and limited downtime all make it difficult to create a single, timely view of operations without careful integration and governance.

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.