Why a Design System is the Highest-ROI Investment Your Product Team Can Make

Design systems cut engineering rework by 20–40% and improve dev velocity by 15–25%. This guide covers what they include, the real ROI numbers, and how to build one without a 12-month project.

The Hidden Cost of UI Inconsistency. In a product without a design system, the same decisions get made repeatedly — by different designers on different days, by developers who cannot find the right colour hex, by QA engineers who are unsure which version of a button is correct.