This System Context Diagram Examples shows the software system as a whole, including all possible external factors that affect its operation. In a diagram of this kind, the system is at the center, surrounded by its components and their associated entities and external context. The internal workings of the system are not described in any detail. In addition, a context diagram is an effective tool for mitigating project risk. Given their primary value to the project's commercial stakeholders, they have a keen eye for spotting high-level design mistakes that could have cost them a plan.