Search results
Results from the WOW.Com Content Network
The best system context diagrams are used to display how a system interoperates at a very high level, or how systems operate and interact logically. The system context diagram is a necessary tool in developing a baseline interaction between systems and actors; actors and a system or systems and systems.
Context diagrams (level 1): show the system in scope and its relationship with users and other systems; Container diagrams (level 2): decompose a system into interrelated containers. A container represents an application or a data store;
A system context diagram represents the context graphically.. Several examples of context models occur under other domains. In the situation of parsing a grammar, a context model defines the surrounding text of a lexical element. This enables a context sensitive grammar that can have deterministic or stochastic rules.
The context diagram serves the purpose of "establish[ing] the information boundary between the system being implemented and the environment in which the system is to operate." [1] Further refinement of the context diagram requires analysis of the system designated by the shaded rectangle through the development of a system functional flow block ...
Example of a system context diagram. [14] Context diagrams are diagrams that represent the actors outside a system that could interact with that system. [15] This diagram is the highest level view of a system, similar to block diagram, showing a, possibly software-based, system as a whole and its inputs and outputs from/to external factors.
System context diagram for a fictitious hotel. (By convention, bidirectional flows, with arrows at both ends, are often used when a dialogue is initiated externally. For example, "booking dialogue" contains the flow "booking request", which is the initial trigger; "booking confirmation", the result, is sent back.)
And then he constructs a context diagram showing his vision of the problem context with the Machine installed in it. The context diagram shows the various problem domains in the application domain, their connections, and the Machine and its connections to (some of) the problem domains. Here is what a context diagram looks like. This diagram shows:
Wikipedia doesn't have an article on context maps. And if you search for images.google for "context map" you will find an other type of images, then the images described here. Just look for "System context diagram" as well and compare the results yourself. It seems to me most context maps are geographical maps, while the SCD's are systems models.