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!
Like hair, nails are a type of modified skin. Nails protect the sensitive tips of fingers and toes. Human nails aren't necessary for living, but they do provide support for the tips of the fingers and toes, protect them from injury, and aid in picking up small objects.