The invention relates to a specification for an internet enabled device or application, the specification comprises one or more functional interfaces, defining attributes or operating characteristics of said device or application, and said specification defines the overall capabilities of said device or application. The invention also relates to a functional interface which defines attributes or operating characteristics of said device or application, as well as a central storage repository for use in a network wherein said central storage repository stores a specification for each device and/or application and/or the at least one server; the specification is comprised of one or more functional interfaces, and said central repository is easily accessible and a method of enabling communication between devices and/or applications and/or a server within a network the network comprising at least one client device and/or client application and at least one server.