Component Diagram Example: Ticket Selling System


This is a component diagram example for a ticket selling system. In this example, there are three user interfaces (represented by actors): (1) customers using the system (2) Clerks operate the system (3) Credit card agency being contacted in handling charges. There is a ticket seller component that sequentializes requests from both ticket selling system and clerks - A component that processes credit card charges; and the database containing the ticket information.

You can create your own component diagram by editing this one. Simply Click Use this Template to start, or click Create Blank to create a new one.

What is Component Diagram?

A component diagram depicts how components are wired together to form larger components or software systems. They are used to illustrate the structure of arbitrarily complex systems. A component is a modular part of a computer software system. It represents a group of related classes and other elements that work together within a self-contained logical structure in order to provide some aspect of the system's functionality. A component diagram can be used in the early stages of system design to establish the overall architecture of the system.

Why Component Diagram?

  • Define the reusable components of a software system
  • Visualize high level component configuration and their dependency relationships
  • Overview an high level depiction of a existing system before making changes or enhancements

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