Turn product intent into clear, measurable engineering requirements that can guide design, testing, and physical builds.
A developing product may have a clear purpose without every technical requirement being fully defined. PEKO works with OEM teams to clarify what the product must do, identify the parameters that matter most to its performance, and establish the engineering requirements needed to support continued development of complex machinery and electromechanical products.
This work takes place within PEKO’s product development and NPI environment, allowing requirements to directly inform design decisions, engineering analysis, prototype builds, and verification.
Defining What the Product Needs to Do
Functional requirements describe the intended behavior of a product or system—what it must accomplish and how it is expected to operate. Supporting product requirements can establish performance targets, operating conditions, physical constraints, reliability expectations, interfaces, and other criteria that influence the design.
Critical parameters make important expectations measurable. Depending on the product, these may include accuracy, output, speed, load, temperature range, dimensional limits, cycle time, response, or other values used to determine whether the product is performing as intended.
Together, these requirements give engineering teams a common basis for developing and evaluating the design.
Functional Requirements Engineering Support for Product Development Programs
Customers do not always arrive with a complete requirements package. PEKO can begin with existing specifications, drawings, models, hardware, test data, or customer knowledge and work collaboratively to resolve the areas that still need definition.
Review & Clarify Product Requirements
PEKO reviews the available technical information to understand what has already been established, identify gaps or conflicting inputs, and clarify how the product is expected to operate.
Define Critical Parameters
Important characteristics are translated into measurable engineering requirements wherever practical. This gives the team clearer criteria for evaluating design decisions and subsequent hardware.
Resolve Open Requirements
Incomplete or subjective requirements can lead to unnecessary design iterations. PEKO works with the customer to resolve open questions before they create larger issues later in the program.
Plan for Verification
As requirements are established, PEKO can identify how key characteristics should ultimately be evaluated through analysis, inspection, functional testing, or other verification methods.
What Can Product Requirements Address?
For complex machinery, equipment, and electromechanical products, requirements may address areas such as:
- Functional behavior and operating sequences
- Performance targets and acceptable ranges
- Mechanical and electrical interfaces
- Dimensional or spatial constraints
- Loads, forces, speeds, or motion requirements
- Temperature, emissions, and environmental limits
- Electrical susceptibility requirements
- Ergonomics and operator considerations
- Reliability targets and required operating cycles
- Service, maintenance, and spare-parts requirements
- Shipping and handling requirements
- Inspection and test criteria
- Customer, industry, or regulatory requirements
The goal is not to create requirements for the sake of documentation. It is to define the criteria that engineering teams need to make sound technical decisions and evaluate whether the product is meeting its intended objectives.
Discuss Your Product Requirements
From Requirements to Physical Builds
Requirements become most valuable when they are used throughout development rather than left isolated in a specification document.
In machinery and equipment development, functional requirements and critical parameters can guide decisions involving motion, loads, interfaces, controls, tolerances, component selection, and other design characteristics. They also provide reference points for evaluating tradeoffs when multiple technical approaches are possible.
As the program moves into prototype and engineering builds, actual hardware can be evaluated against those criteria. Build and test results may confirm the design direction, reveal a requirement that needs clarification, or provide new information that leads to a controlled update.
Because the work remains within PEKO’s NPI environment, the requirements established during development stay connected to the engineering and physical builds used to evaluate the product.
Functional Requirements FAQs
Does PEKO require a completed product requirements document before beginning?
No. Customers may come to PEKO with formal specifications, partial requirements, working hardware, drawings, test results, or other technical inputs. PEKO can help determine what is already defined and where additional clarity is needed.
What is the difference between a functional requirement and a critical parameter?
A functional requirement describes what the product or system must do. A critical parameter defines a measurable characteristic or condition used to determine whether an important aspect of that requirement is being achieved.
Are functional requirements the same as engineering requirements?
Functional requirements are one part of the broader engineering requirements used to define a product. Engineering requirements may also address performance, interfaces, operating conditions, physical constraints, reliability, testing, and other technical criteria.
Can functional requirements change after prototype builds begin?
Yes. Physical builds and testing can generate new information. Requirements may be clarified or refined as the product develops, provided changes are evaluated and incorporated through a controlled engineering process.
How does requirements development fit into PEKO’s NPI process?
Requirements development is part of PEKO’s broader product development and NPI program. The resulting requirements guide design work and carry forward into prototype builds, verification, and later NPI activities.
Talk With PEKO About Your Requirements
If your product still has unresolved functional requirements, critical parameters, or other engineering criteria, PEKO can help establish the definition needed to continue development and move into physical builds.