We progressively refine a customer's specification through four independent phases. Each phase produces concrete deliverables and a clear go / no-go checkpoint before the next begins.
As part of the sales and early engagement process, a customer typically provides a Customer Requirements Specification (CRS). The format, level of detail, and quality of this CRS can vary significantly, from a structured and formal document to informal materials such as presentations, meeting notes, sketches, or even a brief conceptual description.
While such input is valuable, it often introduces several risks when used directly as the basis for estimation, quotation, and development:
Customers often mix functional intent with implementation choices. While sometimes justified (platform reuse, legacy compatibility), it requires careful analysis to avoid suboptimal or overly constrained designs.
A frequent omission is the definition of how compliance will be demonstrated. Each requirement must be verifiable, with clear acceptance criteria and test methods. Failure to identify this early introduces significant project risk.
Customer requirements often contain implicit assumptions that are obvious to the customer but not documented. Edge cases such as fault handling and integration with external systems are frequently under-specified.
Incomplete or ambiguous requirements make reliable estimation of cost, effort, and lead time extremely difficult. This results in either excessive contingency or underestimated effort, and the work to clarify must be invested at some point.
The phased approach addresses these challenges by progressively refining requirements and using them as a solid foundation for estimation and development planning.
Each phase can be offered and executed as a separate, short-term project that you can purchase independently. After each phase, you decide whether to continue, use the results internally, or engage other partners.
Transform the CRS into a structured Product Requirements Specification (PRS) that captures what the product must do, from end-user and stakeholder perspectives, without prescribing technical solutions.
Deliverable · Product Requirements Specification (PRS)Translate product requirements into system-level technical requirements, evaluate feasibility, define the system and device architecture, and surface design risks early through structured DFMEA.
Deliverables · SRS · Architecture · DFMEA · Initial Test Plan · BoMFor products intended for volume production: capture manufacturability, quality, supply chain, and lifecycle requirements before costly redesigns become necessary.
Deliverable · NPI SpecificationConsolidate the outputs of all previous phases into a concrete Product Development Plan, with defined milestones, gates, estimates, and risk mitigation actions.
Deliverable · Product Development Plan & EstimationActively help customers increase the quality, feasibility, and innovativeness of their product concepts, not just take a CRS and start building.
Enable reliable, transparent project estimation in terms of scope, schedule, budget, and risk, grounded in agreed-upon requirements rather than guesses.
To achieve this, requirements are structured from user-centric product requirements to technical system requirements, explicitly verified for completeness, consistency, and testability, agreed upon by all relevant stakeholders, and used as the basis for phased estimation and development planning.
A Product Requirements Analysis is a short, well-scoped engagement that produces a deliverable you can review and decide on. No long-term commitment, no all-or-nothing contract, and the best starting point is usually a quick email.
