TMI Community // Career & craft

Designing for the second user, not only the first

The first user teaches you whether a workflow is possible. The second user reveals whether it is understandable, transferable, and ready to become a system.

SA

Sara Ahmed

Design technologist

Feb 21, 2024//5 min read

Early product work rewards speed and proximity. You know the user, you know the workaround, and the interface can borrow context from the conversation around it. That advantage disappears as soon as another person inherits the workflow.

We began documenting the handoffs that felt obvious: what a status means, why a decision was made, and where the next person should look. Those small explanations became more valuable than another round of visual polish.

Designing for the second user is not about removing personality. It is about giving the work enough structure to travel without losing its intent.

“A useful interface does not only help someone begin. It helps someone continue.”

Discussion (19 Replies)

SA

Sara Ahmed

Design Technologist

Apr 02, 2026

The idea of making the review ritual small enough to repeat is the part I am taking away. Security guidance is only useful when it survives a busy development sprint.

LM

Leo Martins

Cloud Architect

Apr 03, 2026

Would love to see the threat-model template you used. We have been trying to keep it close to the pull request without making the PR unreadable.

AK

Ayesha Khan

Product Engineer

Apr 04, 2026

The key is to record the architectural decision and the residual risk clearly, rather than producing a 30-page static specification.