Abstract: An extension to the HAVi specification is defined which enables the discovery and exchange of portable software elements, i.e. application modules (5a; 5b), within the HAVi home network in a defined way. In particular, the sharing of an application module (5a; 5b) between several controller devices (1a, 2a; 1b-3b) is enabled.

Abstract: A JAVA package (1) usable by a JAVA application (26, 27) to control home network devices is provided, which comprises an adapting means (12) and a device controlling means (16), wherein said device controlling means (16), which provides device specific functionality to control said home network devices, is adaptable by said adapting means (12) to a changing home network device status resulting from home network device correlated events registrated by a managing layer (2, 3). Advantage of this lean architecture of said JAVA package (1) is an easy extedability and low complexity.