These requirements describe characteristics needed for the requirement to function, such as security needs, performance, and reliability. Which of the following options are true? $($Choose two.$)$

A$.$ These requirements would be documented in the Measure phase of the Six Sigma DMAIC methodology.

B$.$ Requirements, whether functional or nonfunctional, are documented in a user story when using an agile methodology.

C$.$ These requirements should be documented in the Define Scope process and will help ensure that business value is realized.

D$.$ This question describes critical success factors.

E$.$ This question describes nonfunctional requirements.