Home systems

HAVi and CEBus

HAVi and CEBus are competing standards for describing and accessing home devices over a network of some kind
CEBus has a longer history, nearly 20 years old
HAVi is more recent and can use more modern technologies
Both have to address a common set of issues

HAVi (Home Audio Visual Interoperability Architecture) is concerned with the following home devices

and other Consumer Electronics (CE) devices

OSGi is Open Sytems Gateway Interface
An internet gateway connects a local network to the internet
An internet gateway passes IP datagrams between the local network and the internet, and does not know about applications
OSGi adds application awareness
External entities can interact with internal entities at the application level via an OSGi gateway
For example, a vendor can upload a new version of a system to an OSGi gateway, and the application can retrieve and install this new version from the gateway
The vendor does not need to know the configuration of the internal network, and the internal applications do not need to know the details of external vendors

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