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INRS-Télécommunications, Verdun, Québec, Canada H3E 1H6 c © 1993 Kluwer Academic Publishers. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of(More)
Information Systems (IS), particularly e-business systems, are required to be more secure in order to resist to the increasing number of attacks. Security is no longer just a desirable quality of IT systems, but is required for compliance to international regulations. The Requirements Engineering (RE) community has started to make successful contributions(More)
Ontologies are viewed as increasingly important tools for structuring domains of interests. In this paper we propose a reference ontology of business models using concepts from three established business model ontologies; the REA, BMO, and e3-value. The basic concepts in the reference ontology concern actors, resources, and the transfer of resources between(More)
Today, security concerns are at the heart of information systems, both at technological and organizational levels. With over 200 practitioner-oriented risk management methods and several academic security modelling frameworks available, a major challenge is to select the most suitable approach. Choice is made even more difficult by the absence of a real(More)
Developing complex, safety critical systems requires precise, unambiguous specification of requirements. A formal specification language is thus well suited to this task. Formal specification languages require, but also exacerbate, the need for tools. In particular, tools should support the elaboration (how to build the formal specification) and the(More)
The requirements engineering, information systems and software engineering communities recently advocated scenario-based approaches which emphasise the user/system interaction perspective in developing computer systems. Use of examples, scenes, narrative descriptions of contexts, mock-ups and prototypes-all these ideas can be called scenario-based(More)
Increasingly, information systems development occurs in the context of existing systems and established organizational processes. Viewing organizational and system components as cooperating agents offers a way of understanding their inter-relationships and how these relationships would or should be altered as new systems are introduced. In this paper, we(More)
Despite 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.(More)