Date Added: May 2012
The large diffusion of Wireless Sensor Networks (WSNs) in the people contemporary life with their numerous applications has led to a huge heterogeneity. This heterogeneity makes the possibility of discovering and collecting data from the wireless sensors more and more difficult. Indeed, WSNs are currently developed around different communities of sensor and user types, with each community typically relying on its own system, meta-data semantics, data format and software. Therefore, the ability to discover and utilize a new sensor asset is typically hindered by incompatible services and encodings which can cause interoperability between different sensor nodes within the same WSN.