ISO/IEC 18012-2:2012(E) specifies a taxonomy and application interoperability model for the interoperability of products in the area of home systems. It also specifies an interoperability framework to allow products from multiple manufacturers to work together in order to provide a specific application. It describes an application process that exists above the OSI reference model (ISO/IEC 7498-1) stack, with sufficient detail needed to establish interoperable applications in this domain. It is applicable to: single implementation home electronic system networks, connected devices and applications, multiple implementation home electronic system networks, connected devices and applications, automatically configured devices, manually configured devices and manually configured groups/clusters of devices.