Nowadays about billions of sensors are deployed for different applications. The numberrnof sensors is expected to be even much greater in the near future. These sensors are of differentrntypes and produced by different vendors. Most of the sensors are deployed with much effort in arnproprietary based. There is a need of standard which facilitate the integration of sensors inrnplatform independent way so that the sensors of different types and from different vendors canrnbe accessed by different applications in an interoperable way. The Sensor Web Enablementrn(SWE) is such a standard. The standard is developed by the Open Geospatial Consortiumrn(OGC). OGC defines standards for Web Service interfaces and data encodings usable asrnbuilding blocks to implement a Sensor Web for sensor applications. The sensor web is forrnsensor as the WWW (World Wide Web) is for general information. The SWE allows thernrealization of the future sensor web as Hyper Text Markup Language (HTML) and Hyper TextrnTransfer Protocol (HTTP) made the realization of the WWW. These standards encapsulaternheterogeneous sensors installed in sensor networks and allows the discovery, access, andrnwhenever necessary controlling of the sensors. However, there is still a fundamental challengernto be tackled. The SWE is designed from the application layer perspective and does not fullyrnaddress the actual integration of the sensor network with the sensor web.rnThe sensor bus is an intermediary layer which address the integration of the sensorrnnetwork and sensor web layer. The sensor vendors are required only to develop an adapterrnwhich will change the communication logic of the sensor network to the sensor bus and vicernversa. The service providers are required only to develop a service adapter which will changernthe communication logic of the sensor bus to the service and vice versa. This will facilitate thernintegration of the sensor network to the sensor web in a minimal cost.rnHowever, the sensor bus architecture is not well evaluated. The evaluation of thernarchitecture was recommended as a future work in the recent research work. As the sensor bus isrnan important component in the entire sensor web system, and then it will become a bottleneckrnunless its performance is evaluated and optimized. The scalability and other related issues havernto be considered as well so as to improve the architecture. Also the sensor bus is not applied in arnreal world application.rnIn this thesis work, the applicability of the sensor bus architecture for heterogeneousrnenvironment has been tested with three different sensor networks. One of them is a real worldrnxrntemperature sensor network (eZ430-RF2500) from Texas instrument. It has been integrated tornthe sensor bus to show its practical application in real-time temperature monitoring application.rnAlso Sun SPOT sensor network using Solarium emulator and a simulated sensor network whichrngenerate random values also have been integrated. Further, the evaluation of the sensor busrnarchitecture also has been carried out. The performance, scalability, heterogeneity and otherrnmetrics have been considered for evaluation. Also design recommendations have beenrnsuggested based on the results obtained.rnKeywords: sensor web enablement, sensor web, sensor network, sensor bus,rnheterogenoous sensor network, sensor observation service, sensorML, XMPP