A Customizable and Secure Software Architecture

Abstract

In this paper, we investigate the problem of providing customization opportunities at implementation time while maintaining consistency, high availability and durability for distributed web-service transactions. We consider ways of adding runtime configurable interception points for after release customization while guaranteeing the correctness of the entire operation. We study integration hooks, that offer an opportunity for optimization by allowing the hook to pass data, writes, updates or consumption to the data tier or request additional data from the data tier. In our previous work, we proposed a replica update propagation method called the Buddy System, which guaranteed consistency, durability and increased availability of web services. In this paper, we extend the Buddy System to allow a pipe and filter architecture on incoming requests and the corresponding responses.