Early supplier involvement (ESI)
Early supplier involvement brings key suppliers into product development before designs are finalized, enabling them to contribute manufacturing expertise, suggest alternatives, and identify [cost reduction](/glossary/cost-reduction) opportunities. Rather than waiting until designs are complete to engage suppliers, ESI makes suppliers partners in the design process.
Examples
Component design input: A mechanical engineer shares draft housing designs with a potential injection molder during the concept phase. The supplier identifies features that would cause molding defects and suggests alternatives that maintain functionality while improving manufacturability and reducing tooling cost.
Material selection collaboration: During early development of a new product, procurement engages suppliers to evaluate material options. Supplier input on material availability, pricing trends, and processing characteristics influences design decisions before specifications are locked.
Assembly process optimization: An electronics company invites their contract manufacturer to participate in design reviews. The CM identifies component placement changes that would improve assembly yield and suggests footprint modifications that align with their equipment capabilities.
Definition
ESI recognizes that the largest opportunities to influence product cost and quality occur during design, when fundamental choices about materials, processes, and suppliers are made. Once designs are released, many cost and quality characteristics are locked in.
Effective ESI requires identifying which suppliers have valuable input to offer and engaging them appropriately. Not every supplier warrants deep involvement; ESI focus should be on strategic suppliers for significant components where their expertise can meaningfully improve outcomes.
ESI creates tension between openness and protection. Sharing design information early helps suppliers contribute, but raises confidentiality concerns, especially before supplier selection is complete. NDAs and careful information management help balance collaboration with protection.
The procurement role in ESI includes identifying suppliers with relevant expertise, facilitating their engagement with engineering, managing commercial and confidentiality considerations, and ensuring supplier input is captured and acted upon. Procurement bridges between supplier capabilities and design team needs.
Frequently asked questions
What is early supplier involvement?
Early supplier involvement (ESI) brings key suppliers into product development before designs are finalized, so they can contribute manufacturing expertise, suggest alternatives, and identify cost reduction opportunities. Rather than waiting until designs are complete to engage suppliers, ESI makes them partners in the design process.
Why involve suppliers before the design is finished?
The largest opportunities to influence product cost and quality occur during design, when fundamental choices about materials, processes, and suppliers are made. Once designs are released, many cost and quality characteristics are locked in. An injection molder reviewing draft housing designs, for example, can flag features that would cause molding defects and suggest alternatives before tooling is committed.
Which suppliers should be involved early?
Not every supplier warrants deep involvement. ESI focus belongs on strategic suppliers for significant components where their expertise can meaningfully improve outcomes, such as a contract manufacturer whose assembly knowledge can shape component placement, or a materials supplier whose view of availability and pricing trends should inform selection before specifications lock.
What are the risks of early supplier involvement?
ESI creates tension between openness and protection. Sharing design information early helps suppliers contribute, but raises confidentiality concerns, especially before supplier selection is complete. NDAs and careful information management balance collaboration with protection of design intellectual property.
What is procurement's role in ESI?
Procurement's role in ESI includes identifying suppliers with relevant expertise, facilitating their engagement with engineering, managing the commercial and confidentiality considerations, and making sure supplier input is actually captured and acted upon. Procurement serves as the bridge between supplier capabilities and design team needs.