MCE Systems


Building MCE a scalable design system & 12 user flows

Role:

Lead UI/UX Designer

Timeline:

6 months

Deliverables:

Scalable design system and 12 core product flows

Problem Statement

MCE lacked a unified design system, resulting in inconsistent components, typography and spacing across products. At the same time, 12 core product flows needed to be delivered with no scalable framework in place, creating inefficiencies, duplication and an uneven user experience.

Goals & Objectives

  1. Establish a scalable design system foundation

  2. Deliver 12 core end-to-end product flows

  3. Improve cross-team efficiency and reduce inconsistencies

Internal insights

  • Inconsistent UI patterns creates friction for users.

  • Teams duplicated work due to the absence of shared components.

  • Lack of standards slowed delivery and introduced errors.

  • A unified system would improve speed, consistency and scalability.

Design system strategy

To ensure rapid implementation and alignment with the engineering stack, I selected Radix as a foundation due to its seamless integration with Tailwind CSS. I customised it for MCE through updated design tokens and evolved the system over time, introducing new components as needs emerged, with a changelog maintained to support versioning and governance.

Approach for user flows

Using the design system as a foundation, I structured 12 core product flows to create consistent experiences across key customer journeys, including trade-in, troubleshooting, repair, insurance, leasing and warranty.


I worked closely with product managers and stakeholders through workshops to map each journey, translating insights and research into wireframes and progressing them into

high-fidelity designs.

Example user flow (Trade-in)

Testing & Iteration

Product managers conducted usability testing, and the we iterated on the flows based on their findings form usertesting.com

Final Designs

The final output combined a scalable design system with 12 end-to-end product flows, covering key journeys such as trade-in, repair, insurance, leasing and troubleshooting.

Metrics & Outcomes

25%

faster design and development cycle

40%

40% reduction in reported design inconsistencies

Role:

Lead UI/UX Designer

Timeline:

6 months

Deliverables:

Scalable design system and 12 core product flows

© 2026 Daniel Annett

© 2026 Daniel Annett

© 2026 Daniel Annett