The arrows show the direction and type of data flowing between the software and each hardware element.
This diagram shows the Automatic Teller System software and the hardware that it interacts with. Sales channels may include online travel agencies, as well as conventional travel agencies.Įdit this Diagram System Context Diagram Example – ATM Machine This example shows the requirements of a computerized system that distributes and stores information of a hotel which enables hotel managers in managing their sales and online marketing, enabling them to upload their room rates and room available which can be easily seen by their sales channels. Here is an example context diagram for a Sale Order System:Įdit this Diagram System Context Diagram Example – Hotel reservation system Such a diagram pictures the system at the center, with no details of its interior structure, surrounded by all its External entities, interacting systems, and environments. It identifies the flows of information between the system and external entities (i.e. The entire software system is shown as a single process. The system context diagram (also known as a level 0 DFD) is the highest level in a data flow diagram and contains only one process, representing the entire system, which establishes the context and boundaries of the system to be modeled. Thus, within the document.Ī system context diagram represents all external entities that may interact with a system. A system context diagram is often used early in a project to determine the scope under investigation. The objective of the system context diagram is to focus attention on external factors and events that should be considered in developing a complete set of systems requirements and constraints. It must be read by all project stakeholders and thus should be written in plain language, so the stakeholders can understand items The Purpose of a System Context Diagram
A context diagram is typically included in a requirements document. The system context diagram (also known as a level 0 DFD) is the highest level in a data flow diagram and contains only one process, representing the entire system, which establishes the context and boundaries of the system to be modeled.
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