Designing context-sensitive systems An integrated approach

作者：Vieira Vaninha^*; Tedesco Patricia; Carolina Salgado Ana

来源：Expert Systems with Applications, 2011, 38(2): 1119-1138.

DOI：10.1016/j.eswa.2010.05.006

• Context
• Context sensitive systems
• Context management
• Meta modeling
• Design process

Context-sensitive systems (CSS) are computer systems that use context to provide more relevant services or information to support users performing their tasks where context is any information that can be used to characterize the situation in which something exists or occurs CSS demand that designers consider new aspects and challenges in comparison to traditional applications In a preliminary experiment we observed that developers find it difficult to include the concept of context in their applications However only few approaches offer integrated domain independent support on developing CSS This paper presents an integrated approach to assist the design of CSS The originality of this work lies on the proposed way of thinking about context on the proposed context metamodel and on the specification of a process for designing CSS The metamodel supports building context models by making explicit the concepts related to context manipulation and by separating the context structure model from the CSS behavior model The design process details the main activities related to context specification and the design of CSS providing a systematic way to execute these tasks This work also advances the state of the art related to the understanding of the concept of context (and its associated concepts) Three experimental studies were conducted to evaluate the proposal its instantiation in the design of a context-sensitive Expert Recommender System its usage by distinct designers on their CSS projects and a qualitative evaluation of the ov

• 出版日期2011-2