What are functional requirements in product design?

Functional requirements in product design refer to the specific capabilities and features that a product must provide to meet the needs of its users and stakeholders. These requirements outline what the product should do and how it is expected to perform in various situations. They serve as a critical basis for guiding the design and development process, ensuring that the end product meets user expectations and fulfills its intended purpose.

For example, a functional requirement for a smartphone might specify that it must allow users to make calls, send texts, and access the internet. These capabilities are essential for the product's success and usability, directly impacting the design decisions made throughout the development process.

Market trends, graphical representations, and cost estimates, while important in the overall product development lifecycle, do not define the specific functionalities that a product must deliver. Therefore, the correct understanding of functional requirements is essential for anyone involved in product design and development.