This chapter describes Hume: a functionally-based language for programming with bounded resource usage, including time and space properties. The purpose of the Hume language design is to explore the expressibility/costability spectrum in resource-constrained systems, such as real-time embedded or control systems. It is unusual in being based on a combination of λ-calculus and finite state machi...

Composition, change and complexity have attracted ev- eryone’s attention towards Self-Adaptive systems. These systems, inspired by the human body, are capable of adapting to changes in the inner and outer environment. The main objective of this study is to achieve a more con- venient availability for e-banking services in the payment switch, using self-healing systems and focusing on the failur...

the occurrence of chatter vibrations in boring operation has a great influence in improving workpiece dimensional accuracy, surface quality and production efficiency. in this paper instability analysis of machining process is presented by dynamic model of boring machine. this model, which consists of machine tool’s structure, is provided by finite element method and ansys software. the model is...

The study of variability in software development has become increasingly important in recent years. A common mechanism to represent the variability in a product line is by means of feature models. However, the relationship between these models and UML design models is not straightforward. UML statecharts are extended introducing variability in their main components, so that the behavior of prod...

Hierarchical state machines is a popular visual formalism for software specifications. To apply automated analysis to such specifications, the traditional approach is to compile them to existing model checkers. Aimed at exploiting the modular structure more effectively, our approach is to develop algorithms that work directly on the hierarchical structure. First, we report on an implementation ...

Model checking is a powerful technique for debugging a system description because it generates a counterexample showing a path of the system that fails a property. Instead of the traditional cycle of find bug – fix bug – re-run model checker, often we would like to study multiple bugs before fixing the model to help isolate the cause of the error and to improve the user’s experience by avoiding...

We present a biologically inspired recurrent network of spiking neurons and a learning rule that enables the network to balance a ball on a flat circular arena and to steer it towards a target field, by controlling the inclination angles of the arena. The neural controller is a recurrent network of adaptive exponential integrate and fire neurons configured and connected to match properties of c...

Formal specifications are the basis for automated verification and implementation in communication software. The paper gives a method of dynamic analysis for modular specifications which is based on symbolic execution and reachability analysis. Symbolic execution is a technique for static analysis and applied first to the specification. It is effective in detecting syntactic and semantic errors...

We present the formal verification of synchronizing aspects of the Reliable Computing Platform (RCP), a fault-tolerant computing system for digital flight control applications. The RCP uses NMR-style redundancy to mask faults and internal majority voting to purge the effects of transient faults. The system design has been formally specified and verified using the EHDM verification system. Our f...

Recently we introduced a multi-plane state machine model of an agent, released an implementation of the model, and designed several applications of the agent framework. In this paper we address the translation from the Petri net language to the Blueprint language used for agent description as well as the translation from Blueprint to Petri Nets. The simulation of a class of Place Transition Net...