Glossary Q

Qualitative Assessment
Use of a set of methods, principles, or rules for assessing risk based on nonnumerical categories or levels.See NIST SP 800-30 Rev. 1 (DHS Risk Lexicon) ...
Quality of Service (QoS)
A categorization of different types of network traffic to prioritize latency-sensitive data over non-latency-sensitive data. See NIST SP 800-127 for more information.
Quantitative Assessment
Use of a set of methods, principles, or rules for assessing risks based on the use of numbers where the meanings and proportionality of values ...