Behavioral requirements describing all the cases where the system uses the functional requirements are captured in use cases. Functional requirements are supported by non-functional requirements (also known as quality requirements functional requirements is detailed in the system design. typical functional requirement will contain a unique name and number, a brief summary, and a rationale. This information is used to help the reader understand why the requirement is needed, and to track the requirement through the development of the system.
Answer 1: Our toes do two very important things for us. Firstly, the toes, especially the big toe, help us balance. To test this, try standing on one foot with none of your toes touching the ground. After a while, relax your toes and let them touch the ground again. I'll bet balancing on one foot is a lot easier using your toes!
Function of the Fingernail. The fingernail is an important structure made of keratin. The fingernail generally serves two purposes: it acts as a protective plate and enhances sensation of the fingertip. Nails can also help grasp small things. The protection function of the fingernail is commonly known, but the sensation function is equally important. The fingertip has many nerve endings in it that allow it to receive volumes of information about the objects we touch.