We describe foundations and design principles of a tool that supports authoring of informal and formal software requirements specifications simultaneously and from a single source. The tool is an attempt to bridge the gap between completely informal requirements specifications (as found in practice) and formal ones (as needed in formal methods). The user is supported by an interactive syntax-di...

Numerous formal approaches to software assurance are available, including: runtime monitoring, model checking, and theorem proving. All of these approaches require formal specifications of behavioral properties to verify a software system. Creation of formal specifications is difficult, and previously, there has been inadequate tool support for this task. The Property Specification tool, Prospe...

the present paper aims to examine the role of frequency lexicon in assessing lexical proficiency of persian learners. addressing the frequency distribution pattern of persian words, the research which is conducted in corpus-based method studies the relationship between words and lexical proficiency as well as derives the frequency lexicon from persian corpus. to do so, formal and colloquial per...

in recent years, formal methods have been used as an important tool for performance evaluation and verification of a wide range of systems. in the view points of engineers and practitioners, however, there are still some major difficulties in using formal methods. in this paper, we introduce a new formal modeling language to fill the gaps between object-oriented programming languages (oopls) us...

The ‘literate’ programming model is extended to include a concept of mechanical transformation. A prototype tool, FLP (Formal Literate Programming tool), has been developed which uses this extended ‘literate’ programming model in both a formal program proof setting, and within a formal (refinement) program development setting. In both settings, FLP provides history, access to tools, and an easy...

Due to the limitations of anti-phishing software and limitations in creating such software, we propose the usage of metamodelling frameworks and software tools for implementing software systems where phishing prevention is already designed as a part of the system itself. An expressive computational, verifiable and validatable metamodel is created that captures user behaviour. Next it is shown t...

Formal languages enable the behaviour of a system to be precisely specified and verified. However, even experienced users admit that creating useful models is difficult and this is a barrier to more widespread use. One reason for this is the lack of tools to assist in the modelling process. The process of formal specification is, in many ways, similar to that of programming where design notatio...

As the level of distribution of resources in a shop floor grows, the development of control software for distributed shop floor control is of significant interest. Since hand-woven control software is expensive and difficult to reconfigure, a formal methodology that supports generating control software rapidly is in need of exploitation. Although a number of approaches to formal specification a...