Introduction

Abstract

Research in context-aware computing has produced a number of application prototypes, frameworks, middleware systems and models for describing context. However, development of ubiquitous context-aware applications is still a difficult task because current middleware systems are focused on isolated and static context-aware environments. For example, applications require a global knowledge of the context-aware infrastructures in order to establish context-based interactions, and they suffer of problems such as disruptions when a context-aware environment evolves. This chapter introduces an approach for distributed context-aware computing that allows applications to maintain context-based continuous interactions, even in a dynamic environment. This chapter summarizes the limitations of current research in middleware for context-aware computing, as well the main contributions of this work.