Shopping Models: A Flexible Architecture for Information Commerce

In a digital library, there are many di erent interaction models between customers and information providers or merchants. Subscriptions, sessions, pay-per-view, shareware, and pre-paid vouchers are di erent models that each have di erent properties. A single merchant may use several of them. Yet if a merchant wants to support multiple models, there is a substantial amount of work to implement each one. In this paper, we formalize the shopping models which represent these di erent modes of consumer to merchant interaction. In addition to developing the overall architecture, we de ne the application program interfaces API to interact with the models. We show how a small number of primitives can be used to construct a wide range of shopping models that a digital library can support, and provide examples of the shopping models in operation, demonstrating their exibility. Two models have been implemented as part of the Stanford Digital Library Project, validating re-usability of key arc...

• Type: Conference
• Year: 1997
• Where: DL
• Authors: Steven P. Ketchpel, Hector Garcia-Molina, Andreas Paepcke
• Keywords: Di Erent Models, Digital Library, DL 1997, Shopping Models