A specification is a detailed description of the requirements, features, and standards for a product or system. It serves as a guide for designers, developers, and engineers to ensure that the final output meets the intended purpose and quality. Specifications can include dimensions, materials, performance criteria, and other essential details. In various fields, such as engineering, software development, and manufacturing, specifications help streamline communication and reduce misunderstandings. They provide a clear framework for testing and validation, ensuring that the product aligns with the expectations of stakeholders, including clients and end-users.