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dc.contributor.authorJain, Ankit
dc.description.abstractScalability, availability and failover are some of the major problems of large software systems today. The Web is growing at a fast pace and websites are experiencing high traffic volumes and often are not able to scale up to meet the increased demand. This thesis presents an approach to making a Web-based system more available and scalable to the endusers. Our solution has been based on reusing the existing code and architecture to create a distributed and scalable environment to handle high load levels. We show how we applied open source technology to a deployed application to make it more available and scalable. Our aim was to re-engineer the system in such a way so that it would fulfill the new nonfunctional requirements through its refactoring. Additionally, we introduced support for failover to the entire application. We have re-architected the existing system to achieve the stated performance goals without a complete system redesign. Subsequently, we have conducted performance comparison of the re-engineered system with the original one, which showed that the improved system achieved the stated performance requirements.
dc.subjectDistributed Systems, Performance, Scalability, Availability, Failover, Re-engineering, Non-Functional Requirements.
dc.titleAddressing non functional requirements through system reengineering
dc.description.departmentComputer Science
dc.description.majorComputer Science
dc.description.advisorKrzysztof Kochut
dc.description.committeeKrzysztof Kochut
dc.description.committeeThiab R. Taha
dc.description.committeeIsmailcem Budak Arpinar

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