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Context Modeling
A context model (or context modeling) defines how context data are structured and maintained (It plays a key role in supporting efficient context management). It aims to produce a formal or semi-formal description of the context information that is present in a Context awareness, context-aware system. In other words, the context is the surrounding element for the system, and a model provides the mathematical interface and a behavioral description of the surrounding environment. It is used to represent the reusable context information of the components (The top-level classes consist of Operating system, component container, Computer hardware, hardware requirement and Software requirement). A key role of context model is to simplify and introduce greater structure into the task of developing context-aware applications. Examples of context models The Unified modeling language, Unified Modeling Language as used in systems engineering defines a context model as the physical scope of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Context Awareness
Context awareness refers, in information and communication technologies, to a capability to take into account the ''situation'' of ''entities'', which may be users or devices, but are not limited to those. ''Location'' is only the most obvious element of this ''situation''. Narrowly defined for mobile devices, context awareness does thus generalize location awareness. Whereas location may determine how certain processes around a contributing device operate, context may be applied more flexibly with mobile users, especially with users of smart phones. Context awareness originated as a term from ubiquitous computing or as so-called pervasive computing which sought to deal with linking changes in the environment with computer systems, which are otherwise static. The term has also been applied to business theory in relation to contextual application design and business process management issues. Qualities of context Various categorizations of context have been proposed in the past. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |