RoboChart is a timed domain-specific language for robotics, distinctive in its support for
automated verification by model checking and theorem proving. Since uncertainty is an …

The growing complexity and diversity of models used for engineering dependable systems
implies that a variety of formal methods, across differing abstractions, paradigms, and …

State-machine based notations are ubiquitous in the description of component systems,
particularly in the robotic domain. To ensure these systems are safe and predictable, formal …

We describe our UTP theory of hybrid relations, which extends the relational calculus with
continuous variables and differential equations. This enables the use of UTP in modelling …

Isabelle/SACM is a tool for automated construction of model-based assurance cases with
integrated formal methods, based on the Isabelle proof assistant. Assurance cases show …

Isabelle/UTP is a mechanised theory engineering toolkit based on Hoare and He's Unifying
Theories of Programming (UTP). UTP enables the creation of denotational, algebraic, and …

Reactive programs combine traditional sequential programming constructs with primitives to
allow communication with other concurrent agents. They are ubiquitous in modern …

The calculus formalises human intuition and common sense about space, time, and
causality in the natural world. Its intention is to assist in the design and implementation of …

RoboChart is a UML-like language designed for modelling autonomous and mobile robots.
It includes timed and probabilistic primitives. In this chapter, we discuss first why we need …

Abstract Algebras have always played a critical role in Unifying Theories of Programming,
especially in their role in providing the “laws” of programming. The algebraic laws form a …