The functional requirements statement: $5$a$)$ Is a complete sentence, with a subject $($information system$)$ and

predicate $($intended result, action or condition$)5$b$)$ Identifies only one requirement; does not include the words "and,"

"also," "with," and $"$or$."5$c$)$ States what tasks the system will support or perform $5$d$)$ Includes a measure or metric that

can be used to determine whether the functional requirement is met $($time or quantity$),$ where appropriate $5$e$)$ Is

stated in positive terms and uses "must" $($not "may" or "should"$)$; e$.$g$.,$ "the system must xxxx$"$ not "the system must

not xxx$"5$f$)$ Avoids the use of terms that cannot be defined and measured, such as "approximately," "robust," "user

friendly," etc. $5$g$)$ Must be testable; that is$,$ there must be some way to test the system to determine whether the

requirement is met