Product delivery
The handoff between market insight and factory execution
Connect customer needs to product requirements, sample approval, production readiness, and controlled changes without losing the original purpose.
Separate customer needs from proposed solutions
Market insight describes something about a customer’s work, expectations, or difficulty. A product requirement translates that understanding into a condition the product should satisfy. A design solution proposes how to satisfy it. Treating these as separate layers helps teams examine alternatives without losing the original reason for development.
A product brief should identify the intended user, context of use, desired outcome, and the evidence supporting those assumptions. It should also record what remains uncertain. A precise-looking specification does not remove uncertainty if the underlying need has never been clarified.
Commercial intent deserves to remain visible after technical work begins. Otherwise, individual improvements can gradually produce a product that is easier to make but less relevant to the demand it was meant to address.
Give requirements priorities and clear ownership
Requirements compete for resources and can constrain one another. Distinguish essential conditions from preferences, and identify which decisions can still change. A long list in which every item is described as critical gives the execution team little help when tradeoffs arise.
Assign a decision owner to each significant area and agree on who can approve a change. Product intent, technical feasibility, quality acceptance, and commercial commitments may require different participants. Ownership should reflect those responsibilities.
Unresolved requirements should remain in an open-issues record with a next action. This makes uncertainty manageable and prevents a missing decision from being mistaken for permission to proceed.
Translate requirements into reviewable acceptance criteria
An acceptance criterion states how the team will determine whether a requirement has been met. It should describe what is checked, under what conditions, and by which agreed method. Where judgement is unavoidable, the review process and decision authority should be clear.
Use consistent terminology and units across the specification, drawings, packaging information, and purchasing documents. References can support interpretation, but they should not be expected to carry requirements that have never been written down.
Maintain a connection between each important criterion and its underlying purpose. This helps reviewers distinguish a necessary constraint from a preferred implementation when development reveals competing demands.
Understand what sample approval does and does not establish
A sample provides evidence about a particular version made under particular conditions. Approval should record the revision, what was evaluated, outstanding limitations, and the scope of the decision. An approved appearance should not be assumed to confirm every performance or production requirement.
Production may introduce differences in materials, tooling, process conditions, and scale. The team therefore needs to understand which aspects of the approved sample represent the intended production method and which still require verification.
Keep approved references accessible to the people doing the work. If the accepted version exists only in one person’s memory or an isolated message, later comparisons become difficult and disagreements harder to resolve.
Control revisions across the whole information set
A revision should identify what changed, why it changed, which requirements it affects, and who approved it. The goal is to preserve a coherent current agreement while keeping enough history to explain earlier decisions.
Changes can affect more than one document or team. A modification to the product may require updates to packaging, purchasing instructions, inspection criteria, or delivery plans. Review those connections before treating the change as complete.
Document distribution is part of change control. Superseded files should be recognisable, and the current version should be easy to locate. Recording an approval is insufficient if production continues using an earlier instruction.
Check readiness at the transition to production
Before production begins, reconcile the approved product definition, acceptance criteria, material decisions, packaging files, and order instructions. Identify unresolved points that prevent release and those that can be managed through an agreed follow-up.
The transition should have an explicit decision: ready to proceed, ready subject to clearly owned conditions, or not ready. Quietly carrying major uncertainties into production makes the eventual resolution more dependent on urgency.
Communication routes should also be ready. Teams need to know where to raise a discrepancy, who can approve a deviation, and how that decision reaches the people affected. This allows execution to continue without informal changes becoming the default.
Bring execution learning back to the product definition
Development and production generate information about feasibility, consistency, and coordination effort. Evaluate that information against the original product purpose rather than treating every difficulty as a reason to remove a requirement.
When a change is justified, update the relevant assumptions and acceptance criteria so that the next cycle starts from a more accurate brief. Keep the reasoning visible alongside the revised specification.
A reliable handoff is therefore a maintained relationship between need, requirement, evidence, and decision. Documents support that relationship, but their value comes from keeping the people responsible aligned as the product evolves.