Defining Product Needs and Requirements

This document is a guide that outlines the critical aspects of defining product needs and requirements in the context of diagnostics. It details the importance of fit-for-purpose diagnostics, emphasizing that diagnostic solutions must be tailored to the specific needs of users and the contexts in which they are utilized. The guide differentiates between product requirements and design inputs, explaining that the Product Requirements Document provides an overview of the product's purpose and high-level requirements, while the Design Input Document specifies the technical and performance criteria necessary for the product. Additionally, it discusses various categories relevant to product requirements, including market needs, regulatory requirements, and performance requirements. The document also highlights the significance of understanding target use settings, which range from self-testing to reference laboratories, and the necessary infrastructure and operator skills required for effective diagnostic testing.