ING required a solution to ensure that critical user experiences, including navigation, search, forms, and onboarding, consistently functioned across different products, markets, and platforms.
This solution should maintain design-code parity, minimize interpretation during implementation, and transform recurring experience decisions into reusable patterns that can be consistently applied, managed, and scaled throughout the organization.

Components alone don’t create alignment
The design system provided reusable components, but components alone could not guarantee a consistent user experience. Multiple teams could use the exact same building blocks and still create entirely different navigation flows, interaction models, and content hierarchies.
The challenge was no longer defining individual UI elements—it was establishing shared expectations for how those elements should work together.

Non-Negotiable Decisions
Critical experiences, like navigation, need a shared foundation. Patterns allow local adaptation but establish common principles, behaviors, and structures. Without agreed-upon patterns, teams create variations that lead to fragmented experiences.
To achieve consistency, key behavioral decisions must be reusable and shared across products and markets.

Complexity grows fast
Every new product, market, team, and implementation introduces opportunities for drifting. Without a shared framework, organizations gradually accumulate experience debt:
- similar problems solved in different ways,
- duplicate effort
- increasing governance overhead.
Design Code Parity
While component documentation helps teams build individual pieces correctly, achieving design-code parity requires alignment on how those pieces work together. Behavior, hierarchy, interactions, and responsive adaptations all need to be defined beyond the component level.
Achieve familiarity
Consistency provides the foundation for creating coherent experiences across products, platforms, and teams. The real outcome is familiarity. Familiar interactions reduce cognitive load, increase confidence, and help users accomplish tasks more efficiently.
The challenge was creating experiences that felt immediately recognizable regardless of where users encountered them.






