ISO/IEC 29341-11-1:2008(E) describes prioritized QoS. UPnP QoS architecture defines 3 services. These are the QoS Policy Holder Service, QoS Manager Service and QoS Device Service. The series of ISO/IEC 29341 publications defines an architecture for pervasive peer-to-peer network connectivity of intelligent appliances, wireless devices and PCs. It is designed to bring easy to use, flexible, standards-based connectivity to ad-hoc or unmanaged networks whether in the home, in a small business, public spaces or attached to the Internet.