Abstract. Many tools for test generation already exist and are used in industry; others are under development or improvement to allow faster generation and more effective tests. Comparing testing tools permits to acquire in-depth knowledge of the characteristics of each tool and to discover its strong points and limitations. Thus, the analysis of different automatic test generation tools provides a precise idea on the appropriate tool to be used to attain the expected results. This paper describes the application of two test generation tools to an industrial case study: a reverse directory telephone service similar to deployed services of this category developed by France Telecom. The tools used, for the automatic test generation, are a commercial tool TestComposer and SIRIUS, a tool developed by INT team. France Telecom R&D division provided the test campaign designed manually by a France Telecom service expert used to define the test objectives. The goal of this paper is to present the experimental results of tools application, to compare their performances and analyze some issues related to test execution.

Après un rappel des travaux antérieurs effectués sur les eaux-de-vie de provenances diverses, nous nous sommes attachés à étudier les substances naturellement présentes dans le bois, dissoutes dans le cognac pendant le séjour en barriques, ainsi que les substances formées par interaction entre les composants du cognac et ceux du bois.Nous précisons ensuite les méthodes analytiques utilisées pour la détection et l'identification de ces substances : chromatographie sur couche mince, spectres d'absorption en ultra-violet. Mous cherchons enfin à identifier les composants du cognac provenant du bois et nous étudions leurs modifications au cours du vieillissement.

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The advent of new and powerful computers, during the last few years, has resulted in a widespread application of numerical models to solve engineering problems. At the present time, one of the popular numerical techniques utilised by engineers is the finite element method.In order to generate and organize in an efficient manner the complex data structure resulting from its application a new modular approach has been developed. This approach is particularly suited to the treatment of heterogeneous domains often encountered in engineering practice.A modified version of the "Multigrid" technique is used to solve the Thompson elliptic equations in order to generate a 2-D finite element grid. A graphical interactive computation system is used and we can consider implementing the programs in a micro- or mini-computer. Key words: computer-aided design, finite element grid generator.

For years to come, we can predict an important increase in the use of software systems using mobile code. Those systems give birth to new development problems compared to current distributed systems. In particular, testing for such systems must take into account the mobility of tested processes, which makes it difficult to maintain contact points between testing and tested processes. We propose a solution based on the simulation of the environment of mobile processes. For developing such a simulator, we need to abstract the notions found in different platforms enabling the execution of mobile processes, by giving a common API between those platforms and our simulator.