![]() ![]() Hence reviewing a context diagram is useful in setting the project’s budget correctly. Since they are mostly useful for the business partners in a project, they are very keen to spot high-level design bloopers that would have otherwise cost them a plan. ![]() Details of the interior structure of the system are explicitly left out.Īlso, a context diagram can be used to reduce risks in a project greatly. ![]() This type of chart puts the system in the middle and surrounds it with its external parts, associated entities, and surroundings. It is essential at the beginning of a project to help decipher the project domain you are investigating.Ī system context diagram represents all the external components that may interact with the system, hence displays the entire software system as a unit. Of great importance to project stakeholders, the system context diagram draws all attention to external factors and events to consider in designing a whole set of a system’s restrictions and requirements. It, therefore, should be laid out in simple and understandable language for easy understanding of the items by the stakeholders when they analyze it. Unlike other project diagrams, the Context diagram is not for use by the engineers/technicians but the project stakeholders. This process is called information hiding.Ī context diagram makes part of the requirements document in a project. The nitty-gritty details of the internal structure of a system are masked in a context diagram since it is strictly a high-level view of the system. It is usually a circle shape that represents a conceptual boundary that encloses a group of interconnected processes and activities of a project. It is made up of a context bubble, first drawn in the middle of the chart. It points out the flow of information between the system and external components. It is a tool popular among Business Analysts who use it to understand the details and boundaries of the system to be designed in a project. Also referred to as the Level O Data Flow Diagram, the Context diagram is the highest level in a Data Flow Diagram. ![]()
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