Putting computing in context: An infrastructure to support extensible context-enhanced collaborative applications
Putting computing in context: An infrastructure to support extensible context-enhanced collaborative applications
复制标题
将计算置于上下文中：支持可扩展的上下文增强型协作应用程序的基础设施
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
W. K. Edwards
中科院分区：
文献类型：
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作者：
W. K. Edwards
情境感知计算暴露了关于人类情境的信息如何建模和使用的独特张力。一方面，使用松散结构的信息的方法已被证明是有用的情况下，人类是上下文信息的最终消费者，这些方法在许多CSCW应用程序中得到了青睐。另一方面，更严格的结构化信息支持机器解释和交换;这些方法已经在无处不在的计算社区中进行了探索。这里介绍的系统被称为Intermezzo，代表了对这两个极端之间空间的探索。Intermezzo将松散的数据结构与许多独特的功能相结合，这些功能旨在允许应用程序将数据的专用语义解释嵌入到基础设施中，从而使它们能够被其他应用程序重用。这种方法可以使应用程序的构建能够利用丰富的、分层的上下文解释，而不需要它们理解该上下文的所有方面。这种方法是通过创建两个更高级别的服务，提供上下文增强的会话管理和上下文增强的访问控制。
Context-aware computing exposes a unique tension in how information about human context is modeled and used. On the one hand, approaches that use loosely structured information have been shown to be useful in situations where humans are the final consumers of contextual information; these approaches have found favor in many CSCW applications. On the other hand, more rigidly structured information supports machine interpretation and exchange; these approaches have been explored in the ubiquitous computing community. The system presented here, dubbed Intermezzo, represents an exploration of a space between these two extremes. Intermezzo combines a loose data structuring with a number of unique features designed to allow applications to embed specialized semantic interpretations of data into the infrastructure, allowing them to be reused by other applications. This approach can enable the construction of applications that can take advantage of rich, layered interpretations of context without requiring that they understand all aspects of that context. This approach is explored through the creation of two higher-level services that provide context-enhanced session management and context-enhanced access control.