Executable Specifications of Safety-Critical Systems with S#

Assumption-Commitment Specifications and Safety-Critical Systems

Reasoning with Executable Specifications

Starting from the speci cation of a small imperative programming language, and the description of two program transformations on this language, we formally prove the correctness of these transformations. The formal speci cations are given in a single format, and can be compiled into both executable tools and collections of de nitions to reason about into a theorem prover. This work is a case st...

Elicitation of Executable Safety Rules for Critical Autonomous Systems

The progress of artificial intelligence techniques, particularly decisional mechanisms, has allowed reactive systems to become more autonomous. This allows new applications in domains such as service robotics in which failures can lead to human injury or death, or financial loss. To ensure safety of such systems, we propose in this paper a process, based on a HAZOP/UML risk analysis, to elicit ...

Executable Specifications for Real-Time Distributed Systems

One of the challenges in designing distributed, embedded systems is the paucity of formal, executable specification notations that provide support for both real-time and asynchronous communication. This paper describes a timed architecture design language (Timed Architecture Interaction Diagrams or TAID) that, by virtue of its formal, executable semantics, combines the benefits of synchronous s...

Executable Specifications for Embedded Distributed Systems

Computer C ombining hardware components with an executable specification language facilitates the specification prototyping of embedded distributed systems. The specification language should cover process management, timing, and communication commands that real-time executive and communication task services of every node prototype can interpret. We use a technique that employs attribute grammar...