Test dimension 01
Remove categories
or move them down.
Omit the categories module or place it below product recommendations.
01 Responsibility
UX concepts
within the app team.
Responsibility for the complete MediaMarkt and Saturn app journey.
I joined the growing Munich design team early and worked directly with the app developers. Designers owned specific product areas: I covered the app, while colleagues covered areas such as search, basket and checkout.
The Product Owner set the focus. My responsibility was the UX concept: understanding the problem from user and business perspectives, developing a viable solution, and refining it through prototypes and user feedback.
Interviews and regular usability tests were part of our product work. I brought experience from FriendScout and gutefrage to this process.
How we worked together
Product Owner
Focus and direction
My contribution
UX concepts, user needs and product logic
Development & joint testing
Technical implementation and testing the solution
02 App home
New app home:
lower conversion in the first test.
The first A/B test showed more product views but a lower conversion rate.
The existing home displayed offers as a stack. The new home was designed to improve access to the range through more visible search, product carousels and direct category entry points. The Product Owner set the focus; I developed the structure and UX concept and aligned the solution with the team.
The first A/B test then showed more product detail page views, but less search usage and lower conversion than the old home.
We reviewed the figures together and considered which elements might distract users from finding a suitable product. The weaker result became the starting point for the next iteration.
What the test showed
More product detail page views did not automatically mean higher conversion. We needed to revisit the entry points and the emphasis given to each home element.
03 Learning from data
Hypotheses about categories
and the search entry point.
We used the test findings to develop the next home iteration.
We reviewed the results as a team and formed hypotheses: was the categories module distracting people from a suitable product? Were the additional entry points generating more views but less relevant ones? What role did the visibility of free-text search play?
I translated these hypotheses into home variants with and without categories, and with more prominent search. In the variants retaining categories, I moved the module below the product recommendations. This made our hypotheses concrete enough to compare in a follow-up test.
Remove categories
Test dimension 02
Make search
more prominent.
Highlight the search entry point with a red border, or show it without that emphasis.
The design decision
Test categories and search
in different combinations.
The variants turned our assumptions into specific differences we could compare in the next test.
04 Testing again
Four variants tested.
Variant 2 had the highest conversion.
In the follow-up test, variant 2 converted better than the old home.
V1
Remove categories
V2
Remove categories & highlight search
V3
Move categories below recommendations
V4
Move categories & highlight search
Documented test result
Prominent search.
No categories module.
The presentation identifies variant 2 as the winner: its conversion rate exceeded the old home's in the follow-up test. Search usage remained lower. I participated in the evaluation, and we decided together which variant to adopt.
These findings describe a specific test. They do not establish long-term impact or additional claims of statistical significance.
05 Webshop search
Product search for
MediaMarkt and Saturn.
Redesigning the entire webshop search experience, with a focus on filter interaction.
After handing over the app, I took on search for the MediaMarkt and Saturn webshops. The existing experience had become dated. I was responsible for the UX concept of the whole search experience, with particular attention to how users could operate filters and narrow their selection.
I reviewed the existing experience and usage data with the relevant colleagues. We developed hypotheses, prototypes and tests from those findings, Baymard research and our own research experience.
An example from the search redesign: filters
Finding filter values.
Grouped filters, different selection types and search within a filter group.
Keeping the selection visible.
Active filters appear above the results. Users can remove them individually or clear the whole selection.
Setting value ranges.
A two-handle slider is paired with numeric inputs and an apply button.
06 Continuity
Handing the app over to
a permanent designer.
Involvement in selection, onboarding and handover to Lora Valcheva.
I helped select the app team's permanent designer, then onboarded Lora Valcheva and handed over responsibility before moving on to webshop search.
In the growing design team, I also learned from David King, particularly about team structure, Design Operations and Design Leadership. That collaboration influenced my subsequent development.
“Great designer, very good team player with deep user understanding and strong visual skills”
Senior UX Designer · MediaMarkt Saturn
