Alecsi : An expert system for requirements engineering

Abstract

The paper aims at presenting a conceptual modelling expert system so-called ALECSI to support requirements engineering. The tool takes user requirements expressed either with natural language sentences or in graphical form as input and produces conceptual structures. During this process, ALECSI supports both knowledge engineering tasks (acquisition, modelling, validating...) and process engineering tasks (guidance, explanation...). The last section of the paper simulates an ALECSI session in order to illuswate with examples the guidance provided by the tool during the requirements engineering phase.

NL-OOPS: from natural language to object oriented requirements using the natural language processing system LOLITA

“…The expert system ALECSI-OICSI (Cauvet et al, 1991) allows the user to express the requirements both in NL (French) and in graphic form, and the system builds conceptual structures. ALECSI, just like LOLITA, uses a semantic network to represent the domain knowledge (Rolland and Proix, 1992).…”

A general explanation component for conceptual modeling in CASE environments

“…ALECSI is an expert system for requirements engineering [Cauvet et al 1991], in which a conceptual model of the future information system is built to assess the system requirements. As a validation technique, a paraphraser is included to present parts of the conceptual model in natural language [Rolland and Proix 1992].…”

NelleN: A framework for literate data modelling

“…It does not in any way pretend to be a complete tool but simply to demonstrate the feasibility of the framework. view 5: this view graphically displays the last selected issue of views (3) and (4).…”

“…We will briefly review other research work that is related to our approach. The research closest to our approach is probably the work of Rolland [18,22,3]. Rolland proposes 'representation-triplets' consisting of a situation, a decision and an action to guide the designer in his, or her, work.…”