Wireless Sensor and Actor Networks (WSANs) constitute an emerging and pervasive technology that is attracting increased interest for a wide range of applications. The increasing functionality of this kind of network makes it necessary to propose tools and methodologies to facilitate software development. MWSAN provides a set of high level services for sensor and actor networks. The middleware meets the component-oriented paradigm and developers can configure it
depending on the actor and sensor resources. It takes into account issues such as the network configuration, the quality of service (QoS) and the coordination among actors. MWSAN is specified in UM-RTCOM, a component model oriented to real time systems adapted to WSANs that allows us to take into account real time requirements in the applications. 

This work is fully supported by the spanish project called DESARROLLO de Software para Redes Inalámbricas de Sensores y Actores (P07-TIC-03085)