This volume contains the papers presented at the 14th SDL Forum, Bochum, Germany entitled Design for Motes and Mobiles. The SDL Forum has been held every two years for the last three decades and is one of the most important open events in the calendar for anyone from academia or industry involved in System DesignLanguagesandmodelling technologies. It is a primary conference event for discussion of the evolution and use of these languages. The most recent innovations, trends, experiences, and concerns in the ?eld are discussed and presented. The SDL Forum series addresses issues related to the modelling and analysis of reactive systems, distributed systems, and real-time and complex systems such as telecommunications, automotive, and aerospace applications. The intended audience of the series includes users of modelling techniques in industrial, research, and standardization contexts, as well as tool vendors and language researchers. Of course, during the last three decades languages, associated methods, and tools have evolved and new ones have been developed. The application domain haschangedalmostbeyondrecognition. Threedecadesagothemobiletechnology of today was science ?ction, whereas now we ?nd software systems embedded in inexpensive childrens' toys. More recently multi-core processors have become common technology for consumer computers, and are beginning to be applied in smalldevices. Eveninsmallco-operating, independently poweredremotedevices (such as motes and mobile phones), there is enough memory and processing power to support quite sophisticated operating systems and applications.