Smart grid can be considered as the next step in the evolution of power systems. It comprises of different entities and objects ranging from smart appliances, smart meters, generators, smart storages, and more. One key problem in modeling smart grid is that while currently there is a considerable focus on the practical aspects of smart grid, there are very few modeling attempts and even lesser ...

We have been engaged in research towards designing a software system called LOZ for learning the object oriented formal specification notation Object-Z. Initially, we conducted a survey to analyse the effectiveness of traditional methodologies for learning Z notation. In LOZ, the semiformal model UML is used in the intermediate phase between informal textual description and formal Object-Z desc...

We present the application of the formal specification language RT-Z, an integration of the model-based specification language Z and the real-time process algebra timed CSP, in the area of safety-critical systems. The characteristics underlying the development of safety-critical systems are identified, and criteria for specification languages to be used in this area are derived. It is demonstra...

Formal specification of a system has been an active area of research since past few decades. There are a number of formal specification languages, Z, VDM, OCL, SDL [1, 2, 3, 4, ] etc. Comparing the different speciûcation methods is not an easy task but it is meaningful in many aspects. This article focus which formal specification language is suitable for particular type of problem e.g. communi...

This paper overviews the work of the EC funded DRIVE Safely project and some of the recommendations for development and production of safe Road Traffic Informatic systems. A selection of the methods currently identified as suitable for formal specification of safety-critical systems is reviewed. A formal specification of the functional and safety requirements for "Pelican" equipment is given in...

Recently, many critical control systems are developed using formal methods. When software applied to such systems is developed, the employment of formal methods in the software requirements specification and verification will provide increased assurance for such applications. Earlier error of overlooked requirement specification can be detected using formal specification method. Also the testin...

In recent years, several methodologies for the development of hypermedia applications have been proposed. These methodologies are, primarily, guidelines to be followed during the design process. They also indicate what deliverables should be created at each of their stages. These products are usually informally specified—in the sense that they do not have formal syntax nor formally defined sema...

Computing facilities networked together but controlled by different administrations pose a problem of access control. Who decides who can use what? We specify a formal model for an access control system which allows users and services from different administrations to communicate with each other, while still allowing the administrators to retain control of their own parts of the network. The mo...

Formal methods are usually used for computer system specification, production and verification. In this paper, a new direction for the use of formal methods is proposed, namely formalization of the regulatory requirements for software of safety-critical real-time control systems. Formal regulatory requirements, as opposed to formal specifications for a concrete system, have a generic nature, ar...

Open component architectures, such as CORBA, allow software systems to be composed of independent components. The behavior of components is described with a mixture of an interface definition language (IDL) and informal prose. This may lead to ambiguous descriptions. This paper proposes an abstract specification of components using the formal specification language Object-Z. The usage of Object...