Some development programs encounter expensive tooling changes, failed verification testing, supplier problems, regulatory delays, or manufacturing inefficiencies right when they’re almost at the finish line..
Many of the conditions that create those costs were established much earlier.
Long before Prototype 1 exists, teams make architectural decisions that shape how difficult the product will be to manufacture, verify, scale, and maintain. At that stage, the program still feels flexible and the investment seems relatively small.
The most expensive decision before Prototype 1 is often the product architecture itself.
Early Progress Can Hide Unresolved Risk
Early development creates visible evidence of progress. Concepts are reviewed, CAD models become more detailed, suppliers get involved, and prototype schedules take shape.
That momentum can be deceptive. Teams may be advancing the design faster than they are reducing uncertainty.
Architecture decisions have consequences across the entire program. Adhesive bonding instead of mechanical fastening changes manufacturing controls, inspection strategy, reliability risk, and process validation. An integrated molded component may reduce assembly labor while increasing tooling complexity and supplier dependence. A software workaround may simplify the mechanical design while adding verification and field support complexity.
Once suppliers, tooling strategies, verification plans, and regulatory documentation begin forming around these choices, changing direction becomes increasingly expensive.
Why Teams Commit Too Early
Development organizations reward visible forward motion. A detailed CAD model looks like progress. A selected architecture gives leadership something tangible to review. Procurement can engage suppliers, Manufacturing can begin planning, and the project suddenly feels real.
Enthusiasm reinforces the effect. Development teams are built around solving problems collaboratively, and people naturally want promising ideas to succeed. Supporting a colleague’s concept feels constructive. Challenging it can feel like slowing the team down.
That optimism can reduce the rigor applied to early risk evaluation. An attractive concept quickly becomes the design, and subsequent work begins improving it rather than continuing to question its fundamental assumptions.
Early ideas deserve support, but they also need rigorous evaluation. The best time to expose a weak assumption is before an organization begins investing around it.
The Cost Multiplier Effect
Architecture decisions propagate through every downstream function. Manufacturing inherits process complexity and yield sensitivity, Quality inherits inspection and verification challenges, Supply Chain inherits sourcing dependencies, and Regulatory inherits documentation and change-control exposure.
The financial impact compounds as development advances. A design change requiring only several days before Prototype 1 is built can become months of disruption after tooling release, supplier qualification, verification execution, or process validation. The growing network of dependencies around the original decision drives much of that cost.
Strong Teams Make Architecture Earn Commitment
Strong development organizations deliberately separate learning from commitment.
Early prototypes should answer specific questions about feasibility, materials, assembly, process capability, reliability, and user interaction. Multiple architectural approaches may need to survive long enough for meaningful evidence to distinguish between them.
Cross-functional input is equally important. Manufacturing, Quality, Supply Chain, Service, and Regulatory should participate while meaningful design flexibility still exists. Their perspectives can expose consequences that may be invisible from within the design team.
Most importantly, architecture decisions should have to earn commitment. Teams should define what evidence is required before selecting a path and actively evaluate the alternatives, assumptions, and risks that could undermine it.
Prototype 1 Should Reduce Uncertainty
Prototype 1 should arrive with deliberate learning objectives and a clear understanding of the risks that remain unresolved.
By that point, many of the decisions shaping the program’s future cost, complexity, and risk have already been made. The discipline applied before Prototype 1 therefore matters enormously.
Every promising architecture deserves enthusiasm.
It also deserves a process rigorous enough to test that enthusiasm.
Free Product Architecture Review
A65 Consulting offers a free early-stage architecture review for medical device development teams. We evaluate product architecture through the combined perspectives of design engineering, manufacturing, quality, verification, and program execution to help teams identify where early decisions may be increasing long-term program risk.
If your team is preparing for Prototype 1, design freeze, supplier engagement, or verification planning, contact A65 Consulting to schedule a complimentary architecture review discussion.
Email: sdonnigan@a65consulting.com
Or schedule your review online
References
Reinertsen, D. G. (2009). The Principles of Product Development Flow: Second Generation Lean Product Development. Celeritas Publishing.
Ulrich, K. T., & Eppinger, S. D. (2015). Product Design and Development (6th ed.). McGraw-Hill Education.
Ward, A. C. (2007). Lean Product and Process Development. Lean Enterprise Institute.
Clark, K. B., & Fujimoto, T. (1991). Product Development Performance: Strategy, Organization, and Management in the World Auto Industry. Harvard Business School Press.
International Council on Systems Engineering (INCOSE). (2015). Systems Engineering Handbook: A Guide for System Life Cycle Processes and Activities (4th ed.). Wiley.
Wheelwright, S. C., & Clark, K. B. (1992). Revolutionizing Product Development: Quantum Leaps in Speed, Efficiency, and Quality. Free Press.
International Organization for Standardization. (2019). ISO 14971: Medical devices — Application of risk management to medical devices. ISO.