A Case Study of Dependable Software Upgrade with Distributed Components

Technology presented in the paper [1] allows validation of software architecture before component upgrades. This paper presents a case study of applying this method to the upgrade of a wireless monitoring system. The converged network of voice and data introduces reliability-critical applications to conventional IP networks. Examples of such applications include voice-over-IP (VoIP), messaging, call centers, etc. Voice networks traditionally operate with an availability of 99.999%. Software upgrade must be done on-line to maintain such a high availability. Our wireless mobile monitoring (WMM) system includes clients and five server components: WAP Gateway (WG), Push Proxy Gateway (PPG), Push Initiator (PI), Content Server (CS) and Fault Monitor (FM). Our experimental results validate the system’s feasibility for on-line upgrade and show that our method is effective in providing round-the-clock wireless network activities while upgrading the network types or the application software.

• Type: Conference
• Year: 2002
• Where: COMPSAC
• Authors: J. Jenny Li, Xueshan Shan
• Keywords: COMPSAC 2002, Push Proxy Gateway, Software Engineering, Wireless Mobile Monitoring, Wireless Monitoring System