What systems influence website design decisions (design systems, CMS models, analytics)?

Website design decisions are shaped by three core systems working in parallel. A design system in Figma defines reusable components, color tokens, spacing rules, and typography scales that enforce visual consistency across every page. The CMS model, whether WordPress, Webflow, or a headless CMS like Contentful, defines what content editors can control and what must be developer-managed.

Analytics systems such as Google Analytics 4, Hotjar, and Microsoft Clarity provide behavioral data that should directly inform layout decisions. High exit rates on a specific page, low CTA click-through rates, or drop-offs in a multi-step form are design problems surfaced by data. Decisions made without these systems in place tend to be opinion-driven rather than performance-driven.