Component Architecture

Component Architecture Overview

Component Architecture lets you structure design systems work so it stays readable, testable, and easy to scale. Instead of ad-hoc code, you follow a clear pattern that other developers can recognise immediately.

The key is to keep component architecture focused and predictable. Start from the minimal example here, then layer in only the complexity your feature actually needs.

<ds-card>
  <h3 slot="title">Plan</h3>
  <p slot="body">Everything your team needs.</p>
  <ds-button slot="actions" variant="primary">Choose</ds-button>
</ds-card>

Slot-based composition lets consumers place content while the component controls structure and style.

Component Architecture Example

/* Tokens flow into components, which flow into products */
:root { --color-brand-500: #2563eb; }
.button { background: var(--color-brand-500); }

• Start from a minimal Component Architecture example and grow it only as needed.
• Keep configuration explicit so Component Architecture behaves the same in every environment.
• Name things clearly so teammates understand your Component Architecture at a glance.
• Add tests around Component Architecture early to lock in expected behaviour.

Design System Cheatsheet

Quick reference for component architecture within a modern design system.

How Component Architecture Fits into a Design System

Component Architecture connects the design decisions in your system to the code teams actually ship. When it is defined once and reused, products stay consistent and updates roll out everywhere.

Slot-based composition lets consumers place content while the component controls structure and style.

• Define it once as a token or shared component.
• Document intended usage with clear examples.
• Make it themeable and accessible by default.
• Version and release changes so consumers can upgrade safely.

Getting Teams to Adopt Component Architecture

Adoption is where design systems succeed or stall. Make component architecture the easiest option: great docs, sensible defaults, and clear migration paths beat mandates every time.

Common Mistakes

• Skipping error handling and edge cases when wiring up component architecture.
• Leaving component architecture untested, so regressions slip into production.
• Over-engineering component architecture before you actually need the extra flexibility.
• Ignoring documentation, which makes component architecture hard for the next developer to change.

Key Takeaways

• Component Architecture is a core part of working effectively with design systems.
• Start small and keep component architecture focused on a single responsibility.
• Apply consistent patterns so component architecture scales across your project.
• Test and document component architecture to keep it maintainable over time.