European Facility For Airborne Research April 4, 2025, 17:07
quality assurance (QA): QA refers to a program for the systematic monitoring and evaluation of the various aspects of a project, service, or facility to ensure that standards of quality are being met.
quality indicator (QI): A means of providing a user of data or derived product (which is the result of a process) with sufficient information to assess its suitability for a particular application. This information should be based on a quantitative assessment of its traceability to an agreed reference or measurement standard (ideally SI), but can be presented as numeric or a text descriptor, providing the quantitative linkage is defined (CEOS).
quality layer (QL): Quality indicator presented as a spatial dataset.
quality: The characteristics of a product or service that bear on its ability to satisfy stated or implied needs. Degree to which a set of inherent characteristic fulfils requirements (ISO9000).
quicklook: A quicklook is a downgraded image of the data, displayed as a jpg or similar, to allow a quick check of the data.