A significant limitation with object-oriented formal specification languages, such as Object-Z, is that they lack development and management processes, which can be used to guide the production of reliable, robust object-oriented systems. An integration of an object-oriented methodology, BON, and Object-Z is presented in order to add an industrially validated development process to Object-Z. An...

This paper presents a method of reasoning about Object-Z speciications. The approach utilises the modularity inherent in Object-Z speciications to simplify proofs. Properties proved for a class in isolation can be used when that class is either inherited by another class or instantiated as part of a system of interacting objects. Proofs using structural induction and the notion of object integr...

This paper presents a translation between the formal description technique LOTOS and the object-oriented specification language Object-Z. The need for such a translation lies in the use of formal methods in viewpoint specification, and in particular in the Open Distributed Processing standard. The use of viewpoints as a set of partial interlocking specifications brings an obligation to check th...

In this paper we develop a framework for semi-automated generation of test cases for object oriented programs from formal speci-cations. We use Object-Z as the formal speciication language. We have designed and prototyped a test system called OZTEST. It understands the characteristics of object-oriented speciications including inheritance. OZTEST maps the speciication to a corresponding impleme...

RÉSUMÉ. La construction d'un analyseur syntaxique pour un langage de spécification formelle tel que l'Object Z n'est pas une tâche facile. En effet, elle nécessite une double compétence aussi bien dans le domaine de la compilation que dans le domaine de la spécification formelle. Dans cet article, nous présentons tout d'abord quelques outils de vérifications des spécifications écrites en Z et O...

Mobile Object-Z (MobiOZ) is an extended notation of Object-Z with mobile and communication primitives required for mobile agent applications. In this paper, we will give an overview of the MobiOZ language features and present its semantic foundation. We also demonstrate expressiveness of the notation through a number of examples.

In this paper we discuss how the speciication of components may be separated from the description of the context in which they are used. There are a number of ways in which this might be possible and here we show how to use the technique of promotion in Object-Z to combine components which are speciied using process algebras. We discuss two approaches, the rst is to separate out the speciica-ti...

This paper investigates model checking Object-Z classes via their translation to the input notation of the CSP model checker FDR. Such a translation must not only be concerned with preserving the semantics of the original specification, but also with how efficiently the resulting specification can be model checked. Hence, the paper investigates alternative translation schemes and compares how e...

Object-Z is an object-oriented specification language which extends the Z language with classes, objects, inheritance and polymorphism that can be used to represent the specification of a complex system as collections of objects. There are a number of existing works that mapped Object-Z to C++ and Java programming languages. Since Python and Object-Z share many similarities, both are object-ori...