Design System: Documented and Applied

A design system built to replace an outdated one and update the company's core products. Created for high‑load SaaS B2B interfaces and aligned with new brand guidelines. Beyond the component library itself, it includes full documentation and component descriptions for development handoff. The document covers rules and patterns for building components, layouts, modules, and interface parts, making it not just a component reference but a fully worked‑out system for applied cases. The system was immediately adopted across several products.

1
Fresh, clean visual language brings a modern look to all core products.
2
Improved and new components cover a wider range of interface needs with better consistency.
3
Optimized, lightweight Figma library keeps the system fast to use and easy to maintain.
4
Detailed developer documentation provides clear specs and usage guidance for implementation.
5
Field‑tested through real product needs and actual usage scenarios.
6
Atomic approach structures the system from tokens up to full interface modules.
7
Tokens and variables ensure consistency and make global updates fast and predictable.

Role: Product Owner / Design System Lead
Duties: Product research & architecture, component design, handoff, release tracking
Context: Internal design system, B2B SaaS product
Team: Topcon Dev Team
Outcome: 5+ major product upgrades, 3 new global launches, consistent brand experience, optimised efforts, and scalable long‑term growth.

Problem

The company updated its brand identity, and at the same time several products needed modernization while new ones had to be built from scratch. The old design system was unable to support either.

Legacy libraries and guides, both technically and morally outdated
Rigid structure with mixed implementation technologies and custom workarounds
Insufficient component coverage and too few variants
Blocked design workflow and development bottlenecks, making new products impossible to launch
Risk of losing market share as products fall behind competitors