Mental model of navigation
DONEGreenspec needed to introduce a B2B client portal inside an existing website without disrupting how users already navigated the platform. This was a challenge because the existing website had a complex navigation structure and a lot of pages. We needed to create a new mental model of navigation for the B2B client portal.
Users were non-technical (people over 50) and had already invested time learning the existing navigation, changing it would introduce unnecessary friction.
Problem statement
- User familiarity (existing website navigation already learned)
- Product needs (introducing operational modules: Quotes, Orders, Invoices)
- Technical constraints (small dev team, need for scalable solutions)

Technical considerations
Limited development resources made a full portal rebuild impractical it would increase complexity, slow down delivery, and add long-term maintenance overhead. The solution needed to be incremental, non-disruptive, and compatible with the existing architecture.
Solution
Introduce portal functionality as a lightweight, persistent layer without disrupting the existing navigation system.

Responsive adaptation
On mobile, the navigation adapts to a bottom bar pattern with 4–5 primary actions, giving direct access to core portal modules like Dashboard, Quotes, Orders, Invoices, and Account. Website navigation is moved into the hamburger menu, separating concerns between browsing and operational tasks.

This new way of navigating was easy to get used to; I don't feel like I'm in two different places, and I can see everything in one place.