In this paper, a schedulability test is proposed for tree-shaped transactions with non-immediate tasks. A tree-shaped transaction is a group of precedence dependent tasks, partitioned on different processors, which may release several other tasks upon completion. When there are non-immediate tasks, tasks are not necessarily released immediately upon their predecessor's completion. The schedulability test we propose is based on an existing test that does not handle non-immediate tasks directly. Simulation results show that tighter response time upper-bounds can be accessed when effects of non-immediateness are considered. Our schedulability test is motivated by real industrial TDMA systems developed at Thales, and experimental results show it provides less pessimistic schedulability results compared to current methods used by Thales system engineers.

In this article, we present the work-in-progress of the EU FP7 PHARAON project, started in September 2011. The first objective of the project is the development of new techniques and tools capable to assist the designer in the development of parallel embedded systems, from executable specifications to target-specific implementation and debugging on a multicore platform. This tool chain will offer and implement several parallelization strategies, reflecting the functional and non-functional constraints of the system, and driving the designer into incremental parallelization and adaptation steps. The second objective of the project is to develop monitoring and control techniques in the middleware of the system capable to automatically adapt platform services to application requirements and therefore reduce power consumption transparently.

MMT (Mont image Monitoring Tool) is a monitoring solution that combines: data capture, filtering and storage, events extraction, statistics collection, traffic analysis and reporting. In the context of the PIMI and DIAMONDS projects, Mont image is developing MMT-Security: a security analysis solution (part of MMT) that inspects network traffic against a set of security properties denoting both security rules and attacks. This tool has been applied to an industrial case study provided by Thales Group that consists of a QoS-aware ad-hoc radio communication protocol.