| Subject | Welsh | English |
| comp., MS | dangosydd ansawdd gwasanaeth | quality-of-service indicator (A statistic that indicates the degree to which a computer, server farm, or server cluster meets usage demands for that configuration) |
| comp., MS | metrics ansawdd gwasanaeth | service quality metrics (A collection of statistics that indicates the degree to which a service meets performance, usage, and other demands for the service) |