7. Final Remarks

In this chaper we summarize the contributions of this Book to advance the state-of-the-art in the development of IoT applications. The main contributions are: (i) to present a middleware-layer infrastructure, SmartSensor, that focuses on the integration of Wireless Sensor Networks (WSN) in the Web, providing WSN as a service, acessible as any other Web resource and enabling the discovery and composition of services to form Web mashup applications; (ii) to describe step by step the development of an application using the SmartSensor infrastructure, the Parking Lot Application, that helps drivers to find available parking space in a building. SmartSensor is composed of three software modules: (i) the Sensor Integration Module (SIM) integrates the distinct WSN devices and provides a RESTFUL interface to access them as Web resources; (ii) the Programming and Execution Module (PEM) enables the composition of value-added services from multiple Web sources; (iii) the Web 3.0 Integration Module (WIM) integrates the resources with Web 3.0 applications and platforms.