Article 03 · UX Principles
Design the Peak and the End
Why people remember moments — not every step in the journey.
Core principle
Apply the Peak-End Rule to the moments that shape memory and trust.
A journey can be mostly functional and still feel frustrating if its most intense moment or final moment is poor.
Experience is remembered unevenly
People do not remember every interaction with equal clarity. They tend to remember the most intense moment — the peak — and the final moment — the end. This means a single frustrating login, confusing error, or weak confirmation can disproportionately define the entire experience.
The first impression can repeat
A difficult entry point does not become harmless simply because the user has seen it before. If people must repeatedly search, authenticate, and navigate before reaching their task, the product creates friction every time they return.
Use momentum as a design material
Deep links, secure contextual access, remembered preferences, and task-specific entry points can preserve momentum. Rather than forcing users to reconstruct where they were, the experience should help them resume the right work quickly.
Make the ending meaningful
A strong ending confirms what happened, what comes next, and whether the user needs to do anything else. A weak ending leaves uncertainty: Did it save? Was it submitted? Who will respond?
Measure the moments that matter
Journey maps often document every step, but prioritization should focus on the moments with the greatest emotional or operational impact. Observe where confidence drops, where users hesitate, and where the experience leaves them.
Design for memory, momentum, influence, and measurable behavior change.
Design takeaways
- Identify the most intense and final moments in the journey.
- Reduce friction at repeat entry points such as login and navigation.
- Preserve context so users can resume work without searching.
- End with clear confirmation, status, and next steps.
Categories: UX Principles · Design Leadership · Human-Centered Design