Personas
Personas are fictional but data-backed representations of the key user groups of a product or service. They are built from user research—interviews, surveys, and data analysis—and capture the typical goals, needs, behaviors, and frustrations of a specific segment. Personas help designers, developers, and stakeholders stop designing “for themselves” and focus on real users.
Personas are one of the core tools of user-centered design. Large-scale studies confirm their business impact:
- A website redesign with personas can deliver up to 4× higher ROI than a redesign without them. Forrester Research built an ROI model based on data from real redesigns and showed that using personas in design decisions dramatically improves the efficiency of the entire project (Forrester – The ROI of Personas)
- Persona-driven marketing increased revenue by 171% and visit duration by 900%. A 2013 MarketingSherpa case study followed NetProspex, which rebuilt its website around personas and targeted its content to specific segments. The results also included a 111% increase in email open rates and a 100% increase in page visits (MarketingSherpa – NetProspex Persona Marketing Case Study)
- Companies with the best design practices grow twice as fast. McKinsey analyzed 300 publicly listed companies over five years, collecting more than 2 million financial data points. Companies in the top quartile of the McKinsey Design Index achieved 32% higher revenue growth and 56% higher total returns to shareholders (McKinsey – The Business Value of Design, 2018)
- Updating personas regularly correlates with a higher rating of their impact on the product. NNGroup surveyed 156 UX professionals and found that 46% update their personas every 1–4 years, 28% quarterly or more often, and 26% only after 5 years or never (NNGroup – Revising Personas)
FAQ
How many personas do you need?
NNGroup recommends creating 3–5 personas per product. The key is that each persona represents a distinct user segment with unique goals and behaviors. Too many personas make them less memorable—it’s precisely their specificity and limited number that make personas more useful than abstract market segments (NNGroup – Personas Make Users Memorable).
What is the difference between a persona and a target audience?
A target audience is a demographic description (e.g., “men aged 25–35, Prague”). A persona goes deeper—it describes specific motivations, goals, frustrations, and behaviors. According to NNGroup, personas work better for design decisions because the human brain responds more strongly to a concrete story than to statistical data (NNGroup – Personas Make Users Memorable).
Why do personas sometimes fail?
NNGroup identified three main reasons personas fail: stakeholders aren’t involved in the research (so they don’t trust the personas), the scope is wrong (a persona created for a different purpose), and the data goes stale. The solution is to involve stakeholders directly in research sessions, create personas for a specific project, and review them regularly (NNGroup – Why Personas Fail).
Sources:
- Forrester – The ROI of Personas – ROI model of redesigns with vs. without personas, up to 4× higher return
- MarketingSherpa – NetProspex Persona Marketing Case Study (2013) – case study of a persona-driven redesign, 171% revenue increase
- McKinsey – The Business Value of Design (2018) – five-year study of 300 companies, 2M+ financial data points
- NNGroup – Personas Make Users Memorable – evidence-based overview of creating and using personas
- NNGroup – Why Personas Fail – analysis of the most common reasons personas fail
- NNGroup – Revising Personas – survey of 156 UX professionals on how often they update personas
%201.webp)