In this paper, we provide a generic model to characterize transactional behavior in an e-commerce environment which can be applied to Business-to-Business (B2B) e-commerce sites, Business-to-Consumer (B2C) e-commerce sites, and other (e.g., simple browsing) type of web-sites. The ideas presented in this paper have been derived based upon detailed examination of the E-commerce server architecture and traffic from a couple of sites. The paper also studies the characterization of embedded requests. We also discuss about how the transactional and embedded request models can be used in generation of artificial front-end e-commerce traffic in the laboratory for resource engineering of servers.
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