Wikipedia “Non-Functional Requirement” ⇒ “A requirement that specifies criteria that can be used to judge the operation of a system, rather than specific behaviors.”

• Qualities are placed here after peer discussion of the Proposed Set

• State your proposals here.
  

(Follow a pattern of [Tag Alias] Imperative Verb Phrase describing a Quality, a Non-Functional Desirement or Requirement.)
Relate the Quality with one or more of the Capabilities by citing the handles of those capabilities.(http://www.omgwiki.org/MBSE/doku.php?id=mbse:modelmgt:capabilities)

• [NONFUNC-INFORM-101] When exhibiting [CAP-INFORM-301] (Notify Subscribers of Changes to Published Content) an ideal MLM-S should express the changes as members of a change set that is necessary, sufficient, succinct, well-formed, self-contained, and not verbose.
  • Consider, for example: the journal of a Journaling Filesystem; a Tracked Resource Set of OSLC Providers; or the Delta XML of changes for an XML Document; DITA

• [FUNC-PERF-100] Response time.

• [FUNC-PERF-200] transaction rate

Source: here