Eliciting dependability requirements:a control cases based approach  

作　　者：LIU Chun WANG Yue ZHANG Wei JIN Zhi 

机构地区：[1]Academy of Mathematics and System Science, Chinese Academy of Sciences [2]Key Laboratory of High Confidence Software Technologies (Peking University), Ministry of Education [3]Institute of Software, School of Electronics Engineering and Computer Science, Peking University

出　　处：《Science China(Information Sciences)》2014年第1期92-106,共15页中国科学（信息科学）（英文版）

基　　金：Supported by National Basic Research Program of China(973 Program)(Grant Nos.2009CB3207-01,2011CB302704);Key Project of National Natural Science Foundation of China(Grant No.90818026);National Key Technology R&D Program(Grant No.2008BAH32B02)

摘　　要：At present, great demands are posed on software dependability. But how to elicit the dependability requirements is still a challenging task. This paper proposes a novel approach to address this issue. The essential idea is to model a dependable software system as a feedforward-feedback control system, and presents the use cases ＋ control cases model to express the requirements of the dependable software systems. In this model, while the use cases are adopted to model the functional requirements, two kinds of control cases（namely the feedforward control cases and the feedback control cases） are designed to model the dependability requirements. The use cases ＋ control cases model provides a unified framework to integrate the modeling of the functional requirements and the dependability requirements at a high abstract level. To guide the elicitation of the dependability requirements, a HAZOP based process is also designed. A case study is conducted to illustrate the feasibility of the proposed approach.At present, great demands are posed on software dependability. But how to elicit the dependability requirements is still a challenging task. This paper proposes a novel approach to address this issue. The essential idea is to model a dependable software system as a feedforward-feedback control system, and presents the use cases ＋ control cases model to express the requirements of the dependable software systems. In this model, while the use cases are adopted to model the functional requirements, two kinds of control cases（namely the feedforward control cases and the feedback control cases） are designed to model the dependability requirements. The use cases ＋ control cases model provides a unified framework to integrate the modeling of the functional requirements and the dependability requirements at a high abstract level. To guide the elicitation of the dependability requirements, a HAZOP based process is also designed. A case study is conducted to illustrate the feasibility of the proposed approach.

关 键 词：DEPENDABILITY dependability requirements requirements elicitation control systems control cases 

分 类 号：TP311.53[自动化与计算机技术—计算机软件与理论]