Component Diagram Example: Web Store

Description:

This is a component diagram example that shows components, provided and required interfaces, ports, and relationships between them. This type of diagrams is used in Component-Based Development (CBD) to describe systems with Service-Oriented Architecture (SOA). The following nodes and edges are typically drawn in a component diagram: component, interface, provided interface, required interface, class, port, connector, artifact, component realization, dependency, usage.

Use this component diagram template as a starting point to create your own, or click Create Blank to start from scratch.

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.

How to Draw a Component Diagram

  • List out components needed to implement the planned system. For example, for a simple Order Processing System, We will need components for the system such as, product items, orders, and customer accounts.
  • Consider the components to be accommodated within the software architecture.
  • Describe the organization and relationships between components using interfaces, ports, and dependencies.

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