Build and document a component library used by at least one production product — tokens, components, and usage guidelines.
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Current milestone
Audit Existing UI and Produce Design System Architecture Document
3–4 weeks
A design system is a product, not a library. Before building, audit the current product UI for inconsistencies and produce an architecture document answering: what are the design tokens, how do components relate to patterns, how will versioning work, and how will adoption happen without a big-bang rewrite. This milestone satisfies the Engineering Design Triad: design artifact.
Proof required
Submit: (a) a UI audit of the existing product identifying 5–10 component inconsistencies or duplicate implementations that the system will resolve, with screenshots, (b) the system architecture document (minimum 1,500 words) covering: token architecture (colour, spacing, typography at minimum), component hierarchy, versioning strategy, and incremental adoption roadmap, and (c) decision records for the two most significant architectural decisions explaining why alternatives were rejected.
What gets checked
UI audit identifies specific instances with screenshots — not general statements about 'inconsistent spacing'
Architecture document answers all four questions: tokens, hierarchy, versioning, adoption
Decision records state why alternatives were rejected
Resources
Storybook — Free Component Development Environment
Design Systems — Free Handbook
Build Token Layer and Three Accessible Production-Ready Components
Ship to Consumers, Complete Documentation, and Defend Architecture
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