RoboChart is a core notation in the RoboStar framework. It timed and probabilistic domain-specific state machine based language for robotics. supports shared variables communication across entities its component model. has formal denotational semantics given CSP. Interaction Trees (ITrees) semantic technique to represent behaviours of reactive concurrent programs interacting with their environm...

An analytic framework termed cognitive dimensions is developed to provide formal definitions of dimensions for assessing the suitability of interactive systems for particular tasks. Cognitive dimensions is a psychological framework that provides broadbrush characterisations of interactive behaviours that are of particular relevance to ease of use. The framework also provides an effective termin...

Severe low-level vulnerabilities abound in today’s computer systems, allowing cyber-attackers to remotely gain full control. This happens in big part because our programming languages, compilers, and architectures were designed in an era of scarce hardware resources and too often trade off security for efficiency. The semantics of mainstream low-level languages like C is inherently insecure, an...

Modern Just-in-Time compilers (or JITs) typically interleave several mechanisms to execute a program. For faster startup times and observe the initial behavior of an execution, interpretation can be initially used. But after while, JITs dynamically produce native code for parts program they often. Although some time is spent compiling dynamically, this mechanism makes much remaining execution. ...