We deal with mechanical documentation in software development tools. First, we review tabular forms for program specification and their formal syntax by an attribute edNCE graph grammar. Next we explain a parser based on the syntactic definitions and attribute rules. Furthermore, we introduce an XML viewer for tabular forms based on the attribute graph grammar. Finally, we introduce a system st...

The Lights Out Ground Operations System (LOGOS) system is a prototype multi-agent system for automating satellite ground operations systems. It uses a community of software agents that work cooperatively to perform ground system operations normally done by human operators who are using traditional ground station software tools, such as orbit generators, schedulers and command sequence planners....

let $k$ be a field of characteristic$p>0$, $k[[x]]$, the ring of formal power series over $ k$,$k((x))$, the quotient field of $ k[[x]]$, and $ k(x)$ the fieldof rational functions over $k$. we shall give somecharacterizations of an algebraic function $fin k((x))$ over $k$.let $l$ be a field of characteristic zero. the power series $finl[[x]]$ is called differentially algebraic, if it satisfies...

This paper presents experiments on formal validation of Java applets. It describes a tool that has been developed at the Gemplus Research Labs. This tool allows to formally prove Java classes annotated with JML, an annotation language for Java that provides a framework for specifying class invariants and methods behaviours. The foundations and the main features of the tool are presented. The mo...

The GOPCSD (Goal Oriented Process Control Systems Design) tool is an integrated environment, where the process control systems engineer can construct, import, check, reason about, modify, validate requirements specifications and generate in the B specification language a formal specification of such process control requirements. Borrowing from the KAOS method, the GOPCSD tool adopts the goal-or...

One of the important issues in supporting specification-based software architectures is how to verify that formal specifications of a software system satisfy liveness, safety and timing constraints, and are consistent and complete with regard to user requirements. Animation has been proposed as one of the techniques for achieving this goal. This article presents a practical approach and a tool ...

ABSTRACT Tool-assisted analysis of software systems and convenient guides to practise the formal methods are still motivating challenges. This paper addresses these challenges and shows using a case study that one can increase the quality of the software by analysing from multiple aspects a formal specification. The B method and the Atelier-B tool are used for formal specifications, for safety ...

We have developed a novel, publicly available annotation tool for the semantic encoding of texts, especially those in the narrative domain. Users can create formal propositions to represent spans of text, as well as temporal relations and other aspects of narrative. A built-in naturallanguage generation component regenerates text from the formal structures, which eases the annotation process. W...

Tool-assisted analysis of software systems and convenient guides to practise the formal methods are still motivating challenges. This paper addresses these challenges and shows using a case study that one can increase the quality of the software by analysing from multiple aspects a formal specification. The B method and the Atelier-B tool are used for formal specifications, for safety property ...