A Comparison of State-Based Modelling Tools for Model Validation

In model-based testing, one of the biggest decisions taken before modelling is the modelling language and the model analysis tool to be used to model the system under investigation. UML, Alloy and Z are examples of popular state-based modelling languages. In the literature, there has been research about the similarities and the differences between modelling languages. However, we believe that, in addition to recognising the expressive power of modelling languages, it is crucial to detect the capabilities and the weaknesses of analysis tools that parse and analyse models written in these languages. In order to explore this area, we have chosen four model analysis tools: USE, Alloy Analyzer, ZLive and ProZ and observed how modelling and validation stages of MBT are handled by these tools for the same system. Through this experiment, we not only concretise the tasks that form the modelling and validation stages of MBT process, but also reveal how efficiently these tasks are carried out in different tools

Checking Computations of Formal Method Tools - A Secondary Toolchain for ProB

We present the implementation of pyB, a predicate - and expression - checker for the B language. The tool is to be used for a secondary tool chain for data validation and data generation, with ProB being used in the primary tool chain. Indeed, pyB is an independent cleanroom-implementation which is used to double-check solutions generated by ProB, an animator and model-checker for B specifications. One of the major goals is to use ProB together with pyB to generate reliable outputs for high-integrity safety critical applications. Although pyB is still work in progress, the ProB/pyB toolchain has already been successfully tested on various industrial B machines and data validation tasks.Comment: In Proceedings F-IDE 2014, arXiv:1404.578

Discovery and Selection of Certified Web Services Through Registry-Based Testing and Verification

Reliability and trust are fundamental prerequisites for the establishment of functional relationships among peers in a Collaborative Networked Organisation (CNO), especially in the context of Virtual Enterprises where economic benefits can be directly at stake. This paper presents a novel approach towards effective service discovery and selection that is no longer based on informal, ambiguous and potentially unreliable service descriptions, but on formal specifications that can be used to verify and certify the actual Web service implementations. We propose the use of Stream X-machines (SXMs) as a powerful modelling formalism for constructing the behavioural specification of a Web service, for performing verification through the generation of exhaustive test cases, and for performing validation through animation or model checking during service selection

Virtual reality application for rehabilitation

Aquest projecte té com a objectiu desenvolupar una aplicació de Realitat Virtual funcional per a la rehabilitació i el benestar de la gent gran en residències d’avis. El que es pretén és complementar el tractament de rehabilitació dels pacients mitjançant jocs de Realitat Virtual que els permetin realitzar moviments repetitius mentre es mouen per un entorn natural immersiu.Este proyecto tiene como objetivo desarrollar una aplicación de Realidad Virtual funcional para la rehabilitación y el bienestar de las personas mayores en residencias de ancianos. Lo que se pretende es complementar el tratamiento de rehabilitación de los pacientes mediante juegos de Realidad Virtual que les permitan realizar movimientos repetitivos mientras se mueven por un entorno natural inmersivo.This project aims to develop a functional Virtual Reality application for the rehabilitation and well-being of older adults in nursing homes. It intends to engage the patient in the rehabilitation treatment by means of Virtual Reality games. To play these games, the patient must execute repetitive movements while moving around in an immersive natural environment.Objectius de Desenvolupament Sostenible::3 - Salut i Benesta

Animation of Z Specifications By Translation to Prolog

Yazılım geliştirebilmenin formal metodları o yazılım tanımlamasının geçerliliğine bağlıdır. Böyle bir tanımlama genelde 'Z' gibi bir formal dilde ifade edilir. Ancak, geçerli olması için, 'Z' tanımlaması test edilmeli, bunu yapabilmek için de animasyon yapılabilecek ve icra edilebilecek bir forma transfer edilebilmelidir. 'Z' tanımlamalarının animasyonları için kullanılan dillerden birisi Prolog'dur. Bu makalede 'Z' şemalarını Prolog'a çeviren teknikler açıklanmaktadır.Aym zamanda bu tür bir çevirmenin eksikleri ve belirsizlikleri üzerinde durulacaktır.Formal methods of software development rely on the validation of the specification of the software. Such specification is normally expressed in a formal language such as Z. However, in order to be validated the Z specification must be tested, and to achieve this it has to be transformed into a form that can be executed or animated. Prolog was one of the languages used for animation of Z specifications. This paper explains the techniques used for translating Z schemas into Prolog predicates. It also examines some of this translation shortcomings and unreliable features

Automatic generation of language-based tools

Many tools can be automatically derived from formal language definitions, such as compilers/interpreters, editors, analyzers, visualizers/animators, etc. Some examples of language-based tools generated automatically by the LISA system are described in the paper. In addition the specification of an algorithm animator and program visualizer, Alma, generated from an extended LISA input-grammar is discussed; LISA principles and code are reused in Alma implementation.GRICES - MCTE

Virtual reality application for rehabilitation

Aquest projecte té com a objectiu desenvolupar una aplicació de Realitat Virtual funcional per a la rehabilitació i el benestar de la gent gran en residències d’avis. El que es pretén és complementar el tractament de rehabilitació dels pacients mitjançant jocs de Realitat Virtual que els permetin realitzar moviments repetitius mentre es mouen per un entorn natural immersiu.Este proyecto tiene como objetivo desarrollar una aplicación de Realidad Virtual funcional para la rehabilitación y el bienestar de las personas mayores en residencias de ancianos. Lo que se pretende es complementar el tratamiento de rehabilitación de los pacientes mediante juegos de Realidad Virtual que les permitan realizar movimientos repetitivos mientras se mueven por un entorno natural inmersivo.This project aims to develop a functional Virtual Reality application for the rehabilitation and well-being of older adults in nursing homes. It intends to engage the patient in the rehabilitation treatment by means of Virtual Reality games. To play these games, the patient must execute repetitive movements while moving around in an immersive natural environment.Objectius de Desenvolupament Sostenible::3 - Salut i Benesta

Animation of Z Specifications By Translation to Prolog

Yazılım geliştirebilmenin formal metodları o yazılım tanımlamasının geçerliliğine bağlıdır. Böyle bir tanımlama genelde 'Z' gibi bir formal dilde ifade edilir. Ancak, geçerli olması için, 'Z' tanımlaması test edilmeli, bunu yapabilmek için de animasyon yapılabilecek ve icra edilebilecek bir forma transfer edilebilmelidir. 'Z' tanımlamalarının animasyonları için kullanılan dillerden birisi Prolog'dur. Bu makalede 'Z' şemalarını Prolog'a çeviren teknikler açıklanmaktadır.Aym zamanda bu tür bir çevirmenin eksikleri ve belirsizlikleri üzerinde durulacaktır.Formal methods of software development rely on the validation of the specification of the software. Such specification is normally expressed in a formal language such as Z. However, in order to be validated the Z specification must be tested, and to achieve this it has to be transformed into a form that can be executed or animated. Prolog was one of the languages used for animation of Z specifications. This paper explains the techniques used for translating Z schemas into Prolog predicates. It also examines some of this translation shortcomings and unreliable features

System integration report

Several areas that arise from the system integration issue were examined. Intersystem analysis is discussed as it relates to software development, shared data bases and interfaces between TEMPUS and PLAID, shaded graphics rendering systems, object design (BUILD), the TEMPUS animation system, anthropometric lab integration, ongoing TEMPUS support and maintenance, and the impact of UNIX and local workstations on the OSDS environment