Glossary
Proto-persona
What is a proto-persona?
A proto-persona is a lightweight, assumption-based persona created without formal user research, used as a starting point for design when research budgets or timelines do not allow full persona development.
How it works
Proto-personas are created in collaborative workshops where team members pool their existing knowledge of users (from support tickets, sales conversations, analytics, and informal observations). They follow the same format as research-based personas (name, goals, frustrations, behaviors) but are explicitly marked as hypothetical. The key difference is transparency about their basis: proto-personas are documented assumptions to be validated, not research findings to be trusted. They are useful for early-stage products, internal tools, and situations where some user focus is better than none. They should be upgraded to research-based personas as soon as feasible.
Applied example
A startup could document assumptions from customer conversations and support records, then conduct research to check them. It should revise or discard unsupported parts rather than treat a small set of confirming interviews as complete validation.
Why it matters
Proto-personas give a team something concrete to discuss and challenge. Their value depends on keeping the assumptions visible and checking them against actual users.
Source: Page Laubheimer: Personas summarize evidence or assumptions; they do not replace user research.