Which of the following best describes a "specification" in engineering?

A specification in engineering is fundamentally a detailed description of a product's requirements. It outlines the essential criteria that a product must meet, including dimensions, materials, performance standards, and function. This comprehensive detail serves as a guide for engineers and designers, ensuring that the final product aligns with the intended purpose and quality standards.

Specifications are crucial at various stages of the design and development process, as they help minimize misunderstandings and provide clear criteria for testing and evaluation. They may also include information about standards the product must comply with, tolerances, and the intended use cases. This emphasis on precise and measurable requirements differentiates specifications from other options such as rough drawings or marketing strategies, which do not capture the technical details needed for successful product development.