scope:

The present document provides a framework for end-to-end quality measurement of multimedia services. The framework defines measurement options for performing pre-transmission quality assurance, in-service network quality measurement, and for client-device quality monitoring at different points in the transmission chain. The document is defined for services delivered on an IP network and is concerned solely with non-interactive services (e.g. IPTV, video streaming).

The present document is intended to provide industry and metric developers with a framework for implementing the appropriate quality metric at each point in the transmission chain. Recommendations are provided on the type and purpose of metric(s) for use at the head-end, network and end device (e.g. STB). Wherever possible, existing standardised metrics and measurement methods being appropriate for use in measurement tools in the transmission chain belonging to the defined framework are identified.