Compatibility
Age, personality and shared interests influence whether roommate relationships feel positive.
MASTER THESIS · UX/UI · 2024
A roommate-matching concept that looks beyond rooms and locations to consider personality, lifestyle preferences and communication styles.
THE OPPORTUNITY
Finding a shared home is only one part of the challenge. Personality differences, routines, cleanliness standards and privacy concerns can turn a practical match into a difficult living experience.
HarmonyHome explores a more human approach: detailed profiles and compatibility signals help people find roommates and spaces that better align with how they actually live and communicate.
Conduct user research
Define the problem and synthesize insights
Create personas, journeys, empathy maps and flows
Design and test low- and high-fidelity prototypes
01 · UNDERSTANDING THE USER
Semi-structured interviews with young adults revealed that compatibility is shaped by far more than location and price. Personality, lifestyle, cleanliness and daily routines all affect whether a shared home works.
Age, personality and shared interests influence whether roommate relationships feel positive.
Different expectations around shared spaces are a common source of tension.
Conflicting study, work and sleep routines can quickly create friction.



I reviewed Swedish and international housing and roommate services to understand how they support search, trust and compatibility.
02 · IDEATION
After defining the problem, I facilitated and participated in workshops that reframed insights as “How Might We” questions. Participants generated ideas individually, clustered them together and prioritized directions through an impact-and-feasibility lens.







03 · FROM IDEAS TO INTERFACE
Prioritized ideas became paper sketches and then digital flows for creating a profile, finding a room and finding a roommate. Filters, maps, compatibility information and preference icons supported informed decisions.




REFINED PROTOTYPE
The prototype combines personalized content, rich profiles, search and filters, map interfaces, messaging and preference signals in a clean white-and-blue visual system.
04 · TEST & REFINE
Participants valued the idea of using social connections to improve compatibility, but unclear labels and navigation caused confusion. Three focused changes improved clarity and matching accuracy.
“Save to the App” and “Save to Profile” became one clear Save button, reducing hesitation and simplifying the flow.

The home page became dynamic, using preferences chosen during account creation to shorten the path to relevant rooms and roommates.

The redesigned concept incorporated multiple social networks to provide more compatibility context and support more informed matching.

05 · ACCESSIBILITY
A language switch during onboarding lets users choose the experience that works for them.
White surfaces, focused blue actions and a quiet navigation tone improve readability and reduce distraction.
OUTCOME
HarmonyHome demonstrates how user-centered design and insights from psychology and sociology can make compatibility visible, reduce conflict and improve the experience of finding a shared home.
Interdisciplinary thinking helped connect design decisions with real relationship dynamics.
Iterative feedback turned a promising concept into a clearer, more usable matching experience.
NEXT STEPS
Refine the questionnaire and use machine learning to improve matching accuracy—with psychology and data-science expertise shaping the model.
Explore how compatibility features could support other relationship-based products, including dating and community platforms.