Specifications are detailed descriptions of the requirements and features of a product or system. They outline what the product should do, how it should perform, and the standards it must meet. For example, the specifications for a smartphone might include its screen size, battery life, camera quality, and operating system. These details help manufacturers and consumers understand what to expect from the product. In addition to guiding production, specifications also serve as a reference for quality control and testing. They ensure that the final product meets the expectations set forth at the beginning. For instance, the specifications for a car would include safety features, fuel efficiency, and engine performance, helping buyers make informed decisions.