A design system is essentially a collection of reusable components and guidelines (like buttons, color schemes, and typographic styles) that help maintain consistency and efficiency in design. Design system coverage analyzes how well a design system is used throughout a product's user interface.

Here’s how you can measure it:

• Team efficiency: This looks at how long it takes to build a product with the design system. If the team is more efficient, they can build faster because they use ready-made parts instead of starting from zero.
• Speed to market: This checks how quickly new ideas are made and tested, showing how well the design system can speed up the early steps of building.
• Code quality: This shows if the design system makes code simpler and more standard, which could mean fewer mistakes and less maintenance.

If these metrics are all high, it means the design system is doing a good job of making processes faster, keeping products consistent, making them more accessible, and improving user experience.^[1]