A context diagram is based on graphic visualization of the interaction of data and business processes through an information system. This diagram has 3 main components which include external entities, system processes, data flows. It provides the factors and events you need to consider when developing a system. With it, you will be able to determine the scope, boundaries, and system requirements. Apart from that, it does not include a sequence of events, timing, or any technical information. Hence, it’s easier to understand by the people involved in the project such as the business analyst, stakeholders, and developers. In line with that, we prepared some context diagram examples to help you create a visual model of your project or system process and data flow.
Context Diagram: Definition, Symbols and Examples
- Benefits of using Context Diagram
- Symbols used in Context Diagram
- Free and Editable Context Diagram Examples
Benefits of using Context Diagram
Prior to creating a diagram for business projects, one must be knowledgeable about this diagram’s useful benefits. As mentioned, the diagram does not show any detail regarding the technical structure. As such, it is one of the best illustrations to present your business project. Through this, you can clearly explain the project even for audiences with no technical knowledge. Besides, the system context diagram is an excellent tool for any line of business that needs an automation system of services.
Symbols used in Context Diagram
All diagrams display particular symbols in accordance with their uses. Read along as we show the symbols when developing a system with a context diagram and their functions.
External Entity- an element in the system diagram that inputs data into the information system and retrieves processed data.
Process- refers to the entire process of the system. This is responsible for processing and distributing information to the entities of the system context diagram.
Flow Line- this element depicts the flow of the data within the system. It is supported by text to show what type of data is being sent.
Free and Editable Context Diagram Examples
Hotel Reservation SystemEdit this example
This diagram shows how the process of automated hotel reservation works. The Book Room at the center is responsible for the information it receives and retrieves. Furthermore, the arrows come with text labels to indicate the data flowing.
ATM MachineEdit this example
You can also use a system context diagram to analyze the ATM process. Here the diagram depicts the hardware and software required. In addition, it includes the type of data flowing represented using arrows. This can go handy if you are planning to set up an ATM business or developing software for your client.
Library management systemEdit this example
The next example is the Library management system. It shows the process of a student reserving a book. The diagram helps you track the activities and display accurate info of the booking status. Using this illustration, the library staff can easily manage the library returns and reserves of books.
Online Ordering SystemEdit this example
This outline is an example of a business context diagram. This is a good illustration to clearly understand the process within a system when ordering online. It consists of several entities including customer, manager, meal deliverer, the process performed, and arrows of data information flowing in the system.
When planning to put up a business or developing a program, it’s important to understand the logic of the data flow and processes of a system. Thus, you can make use of the editable system and business context diagram examples above to present your business project through an understandable illustration.