1. Smart Space OSGi (Equinox) SOFIA Application Development Kit Abstract Gateway TCP/IP Gateway Bluetooth Gateway Zigbee Gateway … Knowledge Processor Gateway Connector Communication Protocol (SSAP) Semantic Model Logic Semantic Information Broker Semantic Model ISIB TCP/IP Connector TCP/IP Connector TCP/IP Connector SIB Visualizer ISIBViewer SIB Manager Eclipse IDE SOFIA Perspective KP Project Generator Wizard OWL Editor generates SIB Server PDT WST JFace Session Manager Subscription Manager Communication at Semantic Level SSAP communication level Physical communication level