Context model

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-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, 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 as used in systems engineering defines a context model as the physical scope of the system being designed, which could include the user as well as the environment and other actors. A System context diagram represents the context graphically..
Several examples of context models occur under other domains.