ISO/IEC 29341-9-10:2008(E) defines a front panel by registering a control point for a specific user interaction. The external activity service allows the service to control its resources by enabling limited registrations. It also interacts with an associated scan service to address contention issues after a user interaction has occurred. 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.