Computer/System Terms - Q
quadrature amplitude modulation (QAM) - (wireless signal transmission)
quadrature amplitude modulation very-high-data (QAM-VDSL) - (bit)-rate digital subscriber line (high-bandwidth wireless signal transmission)
Qualified Security Assessor (QSA) - (Individual deemed qualified to conduct a compliance audit and issue a report on organizations handling payment card transactions, in accordance with the Payment Card Industry Data Security Standard (PCI DSS).)
quality acceptance testing (QAT) - (software development process)
quality assurance (QA) - (Administrative standard and procedures in place to ensure a certain level of quality. In the area of operational security administrative management, an approach to ensuring that activities meet the prescribed standards in relation to supporting documentation and nomenclature. )
quality control (QC) - (A method/process which ensures that an organization's activities, services, equipment, and personnel operate within accepted or intended standards.)
Quality of Experience (QoE) - (user experience satisfaction measure)
quality management system (QMS) - (A collection of processes and activities intended to ensure desired levels of quality are met, incorporating quality assurance and quality control practices.)
Quality of Service (QoS) - (A capability that allows a protocol to distinguish between different classes of messages and assign priority levels - allows an administrator to assign a priority to time-sensitive traffic. Allows a service provider to guarantee a level of service to its customers.)
quaternary phase-shift keying/complementary code keying (QPSK/CCK) - (wireless data transmission)
query language (QL) - (A computer language which allows users to query/make requests of a database.)
Quick Path Interconnect (QPI) - (processor-external chip interface)
Quick Response code (QR code) - (A type of two-dimensional bar code used to label products and track sales, as well as for identification.)