- Case Study

Design Systems / SaaS Infrastructure

Wiser Design System

A scalable UI component system designed to unify multiple products and improve design and development efficiency.

200+

Components

+35%

User Efficiency

+20%

Data Accuracy

Role

Product Designer

Scope

Design System / Multi-product SaaS

Year

2024

Wiser design system — component library preview

- Context

Wiser Solutions operates multiple products built over time using different design patterns, UI styles, and code bases.

As these products evolved independently, inconsistencies began to impact usability, brand perception, and development efficiency. This created a growing need for a unified design system that could scale across products while maintaining consistency and flexibility.

- Problems Identified

Six core inconsistencies were holding the product ecosystem back.

Colour inconsistency across products created confusion and weakened brand identity

Navigation patterns varied, increasing cognitive load for users

Typography usage lacked standardization, reducing readability and cohesion

Multiple code bases (ANT, Material, Backbone) caused fragmentation

No centralized design system existed to guide UI decisions

Icons and visual elements were inconsistent across products

- Goal

Establish a unified system that ensures consistency, reduces duplication, and creates a scalable foundation.

The goal was to establish a unified design system that ensures consistency across products, reduces duplication in design and development efforts, and creates a scalable foundation for future product growth.

- Approach

Atomic design methodology, built iteratively with real use cases.

The system was built using an atomic design methodology, focusing on creating reusable components and patterns that could scale across multiple products.

  • Identifying common patterns across products
  • Building reusable components iteratively
  • Aligning closely with developers for implementation
  • Continuously refining components based on real use cases

- System Architecture

The design system was structured into four distinct layers.

The design system was structured into layers, each building on the one before it to create a cohesive and scalable architecture.

Foundations

color, typography, spacing

Components

buttons, inputs, navigation elements

Patterns

layouts and interaction flows

Product-level

implementations

Wiser design system — foundations, components, patterns, and product layers

- Component System

200+ components built with modularity and consistency in mind.

From foundational elements like typography and colors to complex UI components, the system provides everything needed to build cohesive product experiences.

Wiser design system — component library overview
States & Variants

States & Variants

Multiple component states including hover, active, disabled, and error states

Responsive Patterns

Responsive Patterns

Adaptive layouts and components that work seamlessly across all device sizes

Clear naming conventions for cross-team clarity

Defined states and variants for all components

Responsive behavior across all devices

Flexibility to handle multiple use cases

- Slot-Based Architecture

Reduce complexity while increasing flexibility through composition.

A slot-based composition model was introduced to reduce component complexity while increasing flexibility.

Instead of creating multiple variations of components, internal elements were made configurable, allowing the same component to adapt to different scenarios without duplication.

Wiser design system — slot-based composition model

- Scalable Foundations

The system is fully powered by variables.

  • colors, typography, and spacing tokens
  • support for dark and light themes
  • consistent border radius, spacing, and layout rules
Wiser design system — design tokens

- Collaboration & Implementation

Built in close collaboration with developers to ensure alignment between design and code.

  • components were validated during implementation
  • documentation supported adoption
  • QA ensured design accuracy in production
Wiser design system — implementation across devices

- Outcome

A single source of truth for UI across all Wiser products.

200+

Components

+35%

User Efficiency

+20%

Data Accuracy

  • consistent user experience across multiple products
  • faster design and development cycles
  • reduced redundancy
  • improved collaboration between teams
Wiser design system — used across all Wiser products

The system is now used across all Wiser products, with 200+ components actively maintained and documented.

- Documentation

Comprehensive documentation to support adoption and maintenance.

  • detailed component documentation
  • usage guidelines and best practices
  • API documentation for developers
Wiser design system — documentation

- Reflection

Design systems are not just UI libraries; they are foundational infrastructure for product scalability.

Balancing flexibility with consistency was key to ensuring adoption across teams. The success of this system demonstrated that investing in design infrastructure pays dividends in speed, quality, and team alignment.

Thank You

For taking the time to explore this case study

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