Bazaar: A Middleware for Physical World Abstraction

Abstract

In this paper, we propose a middleware, Bazaar, for building location and context-aware service without the need to consider the details of information capturing, but to allow a developer to concentrate on his/her main task, i.e. the application logic development. Bazaar abstracts the physical world by separating the structures of information and the usage from utilization. It also serves as a shared “physical information repository” to maintain consistency among various applications in the environment, which is often called the world model.