This hair is called âlanugo.â. Hereâs what you should know about your newbornâs body and head hair: 1  Lanugo hair is the hair that grows on the body of an unborn baby. Lanugo attempts to insulate the babyâs body because of a lack of fat.  Lanugo begins to grow around three months after conception.
However, what exactly is the difference between âfunctionalâ and ânon functionalâ requirements? Itâs not that complex, and once you understand the difference, the definition will be clear. The official definition of âa functional requirementâ is that it essentially specifies something the system should do.
What is a System Requirements Specification (SRS)? A System Requirements Specification (SRS) (also known as a Software Requirements Specification) is a document or set of documentation that describes the features and behavior of a system or software application.