基于本体的需求自动获取

Ontology-Based Requirements Elicitation

以企业信息系统为研究背景 ,提出了一种基于本体的需求获取方法 ,该方法用企业本体和领域本体为基本线索 ,引导领域用户全面描述现实系统 ,并通过重用领域需求模型 ,构造应用软件需求模型 .这种方法的主要特点是 :用领域用户可以理解的语言与他们交互 ,让他们能积极地参与需求获取活动 ;需求获取在模型的制导下完成 ,利于保证需求获取的完整性和一致性 ;在多种知识的支持下 ,自动完成对现实系统的理解和目标系统需求模型的构造 .该文将以该方法的总体结构为主线 ,分企业本体和领域本体的结构以及目标系统需求模型的构造两大部分 ,阐述这种方法 .

This paper presents a new approach to support the elicitation process. Based on the enterprise information systems, this approach is using the enterprise ontology and the domain ontology as the requirements meta models to steer domain users describing their real systems systematically. By reusing the domain software models, the requirements model of the target system can be constructed automatically. Compared with the available approaches for requirements elicitation, the approach presented in the paper shows the following significant features. First, it interacts with domain users using domain terminology, not software terminology, so allows the involvement of domain users. Secondly, it is possible to guarantee a complete, consistent and unambiguous requirements specification under the guidance of these meta models. Finally, it supports the automated construction of application requirements models with the help of its rich knowledge.