Detecting feature interactions in CPL

被引:2
|
作者
Xu, Yiqun
Logrippo, Luigi [1 ]
Sincennes, Jacques
机构
[1] Univ Quebec, Dept Comp Sci & Engn, Gatineau, PQ J8X 3X7, Canada
[2] Univ Ottawa, Sch Informat Technol & Engn, Ottawa, ON K1N 6N5, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Internet telephony; VoIP; features; services; feature interaction; CPL; Call Processing Language;
D O I
10.1016/j.jnca.2005.10.001
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
An approach for detecting feature interactions in IETF's Call Processing Language (CPL) scripts is presented. The approach is logic based in the sense that it uses a logic representation of CPL scripts, of requirements and of detection rules and, in several cases, specific detection rules are shown to be derived from requirements by logical deduction. The Simple Formal Specification Language (SFSL) is introduced to express the intentions of CPL scripts in logic format. A method for translating CPL into SFSL is presented. The rules address both interactions within a single script, and interactions between two scripts. An automatic feature interaction detection tool applying these rules was implemented in SWI-Prolog. The general method is not specific to CPL and could be used in other feature interaction research. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:775 / 799
页数:25
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