Fidelity Design System
How might we create a unified design system that ensures consistent experiences across all our platforms and brands?















































Overview
Fidelity Investments launched a fourth-generation design system to improve scalability and cross-platform consistency, enabling multi-brand theming and density modes for Android, iOS, and responsive web. The effort aimed to align design and code, reduce redundant component maintenance, and accelerate delivery across products.

Problem
Inconsistent design standards across products created confusion and fragmented brand identity.High maintenance costs and duplicated effort due to multiple component versions and token pipelines.-
01Inconsistent design standards
The absence of a unified design system led to fragmented UI patterns and inconsistent implementations.
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02Increased maintenance costs
Multiple versions of similar components increased upkeep and complicated updates across teams.
Solution
Establish a single source of truth for design tokens, components, and documentation to align design and engineering practices across platforms.-
01Code and design parity
Sync design and development artifacts to reduce duplicative efforts and improve component reliability.
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02Token architecture
Define token tiers and naming standards to support theming, density modes, and cross-platform distribution.
Approach
Coordinated cross-functional squads and external agencies to develop token pipelines, component libraries, and an internal reference docsite while prioritizing accessibility and adoption.- Design toolkits and coded components lacked parity, creating tech debt and custom overrides.
- Documentation gaps existed for Android and iOS, creating a disconnect between design and development.
- Naming paradigms were inconsistent (card vs tile vs content block).
- Brand standards were primarily marketing-focused and not optimized for digital experiences.
- Design tokens were fragmented and not shared across systems.
- Prioritize IA for consolidated documentation of tokens, components, and brand guidance.
- Define token naming conventions and transformation pipelines (e.g., Style Dictionary) for multi-platform sync.
- Partner with accessibility teams to validate components in context.
- Provide adoption support and demos to help teams integrate the system.
- Pilot token mapping and implementation examples to demonstrate value.
Ideation
Distinction of system from user preference is a critical path to define when it comes to mapping tokens to themes.





Wireframes
Documentation website
Impact
Measuring successAnnual cost savings in UX improvements
$12.5M
Adoption across app
71.43%
Takeaway
I joined our design system team to combat growing needs across our enterprise. Being on the other side of the fence was a humbling and eye-opening experience in navigating the decisions involved in building a design system.- Deepened my understanding of accessibility requirements and closely defining criteria to be AA compliant.
- Collaborate with content strategy as documentation in guidance can be bridged across the enterprise.
- Demos are critical to the success of instilling confidence in design adoption. The increased in design tool updates created a gap for consuming designers to navigate features integrating with iterative releases.
- Expand pattern documentation efforts to be centralized across business units.
- Refine data visualization guidance by leading with an emphasis when to use vs just a data table as well as expanding guidance to not rely soley on color strictly as visual distinction.
- Continue to lean in and listen to design community feedback and dive deep into understanding component limitations not meeting their use cases.