Scientific publications

Nowadays, mobile devices are used more and more, and their battery lifetime is a key concern. In this paper, we concentrate on a method called battery scheduling with the aim to optimize the battery lifetime of mobile devices. This technique has already been largely theoretically studied in other papers.

Modern embedded multimedia systems process multiple concurrent streams of data processing jobs. Streams often have throughput requirements. These jobs are implemented on a multiprocessor system as a task graph. Tasks communicate data over buffers, where tasks wait on sufficient space in output buffers before producing their data.

To support model-based development and analysis of embedded systems, the specification language VDM++ has been extended with asynchronous communication and improved timing primitives. In addition, we have defined an interface for the co-simulation of a VDM++ model with a continuous-time model of its environment.

This article contains three short abstracts of presentations given at the Sixth Workshop on Model-Based Testing (MBT 2010) on March 21, 2010 in Paphos, Cyprus: Theory of Model-Based Testing and How ioco Goes eco by Jan Tretmans (invited presentation), Model-Centric Testing by Florian Prester and Specification Model Based Testing in the Avionic Domain - Current Status and Future Directions by Philipp Helle and Wladimir Schamai.

This paper deals with the innovation of software engineering technologies. These technologies are methods and tools for conducting software development and maintenance. We consider innovation as a process consisting of two phases, being technology creation and technology transfer. In this paper, we focus mainly on the transfer phase.

The problem of configuration of Wireless Sensor Networksis an interesting challenge. The objective is to find the settings, for eachsensor node, that optimise certain task-level QoS metrics. An existing configuration method is available for tree-based static networks. We ex-tend this method to support a mobile sink.

Warehouses play a critical role in the distribution of products of many suppliers to many customers. Traditionally, warehouse operations are controlled by centralised control systems. Because of increasing customer demands, the complexity of such systems becomes too large to respond optimally to all warehouse events.

Modern embedded systems typically contain chip-multiprocessors (CMPs) and support a variety of applications. Applications may run concurrently and can be started and stopped over time. Each application may typically have multiple feasible configurations, trading off quality aspects (energy consumption, audio-visual quality) with resource usage for various types of resources.

Gossip protocols are designed to operate in very large, decentralised networks. A node in such a network bases its decision to interact (gossip) with another node on its partial view of the global system. Because of the size of these networks, analysis of gossip protocols is mostly done using simulations, that tend to be expensive in computation time and memory consumption.