Method Enhancement by Scenario Based Techniques

International audienceScenarios have proven useful to elicit, validate and document requirements but cannot be used in isolation. Our concern in this paper is to integrate scenario-based techniques in existing methods. We propose a set of operators to support such an integration. This set is classified in two sub-sets: the one dealing with the integration of the product models of the two initial methods and the one concerned with the integration of their process models. The operators are used to integrate the CREWS-L'Ecritoire approach with the OOSE method. This leads to enhance the use case model construction of the OOSE method with on one hand, the linguistic techniques for scenario authoring and formalisation and on the other hand, the discovery strategies to elicit requirements by scenario analysis of the CREWS-L'Ecritoire approach

Specifying the reuse context of scenario method chunks

International audienceThere has been considerable recent interest in scenarios for accompanying many of the various activities occurring in the development life cycle of computer based systems. Besides the integration of scenarios in methods such as Objectory and software tools such as Rationale Rose has proven useful and successful. Consequently, there is a demand for adapting existing methods to support specific design activities using scenario based approaches. The view developed in this paper is that scenario based approaches should be looked upon as reusable components. Our concern is therefore twofold : first, to represent scenario based approaches in a modular way which eases their reusability and second, to specify the design context in which these approaches can be reused in order to facilitate their integration in existing methods. The paper concentrates on these two aspects, presents an implementation of our proposal using SGML to store available scenario based approaches in a multimedia hypertext document and illustrates the retrieval of components meeting the requirements of the user by the means of SgmlQL queries

A reuse-Oriented Approach for the Construction of Scenario Bases Methods

International audienceDespite the recent interest in scenarios, the development of new methods and tools for Requirements Engineering integrating scenario based approaches has been limited. This paper reports on four different processes developed from research undertaken as part of the CREWS project which the authors believe will improve scenario use and make it more systematic. Furthermore CREWS aims to integrate these approaches into a method for scenario-based requirements engineering. To achieve this objective and be able to include existing approaches such as use case analysis we develop a component based approach which reflects a shift towards a reuse-centric approach to method engineering. The paper presents CREWS method and meta-method knowledge through the implementation of an SGML database to store, retrieve and dynamically compose chunks of CREWS processes

A Process Meta-Model Improving Software Quality

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Modelling Ways-of-Working

. We propose in this paper, an approach for defining in a systematic manner, ways-of - working providing guidelines for the development of information systems. It is a modelling approach in which a given way-of-working is constructed by instantiation of a way-of-working model allowing to deal with a large variety of situations in a flexible, decision-oriented manner. The paper presents the way-of-working model and exemplifies the construction of a specific way-of-working based on the OMT methodology. 1 Introduction Despite thirty years of constant improvements of Information Systems (IS) methodologies, the IS community is not satisfied with existing ways-of-working. They are too large-grained descriptions of the system life-cycle, unclearly defined, do not guide application engineers efficiently and consequently are not used as intended. They lack flexibility and cannot be easily adapted to the requirements of a specific project. One approach to solve the problem is to deal with meth..

Using Generic Method Chunks To Generate Process Models Fragments

International audienc

Using a generic approach to support the construction of methods

International audienc

Process Modelling in The NATURE of Requirements Engineering

International audienc