Sellwerk.de
Online platform
I worked on making Sellwerk’s products easier to find, understand and use, across desktop and mobile.
- My role
- UX/UI design
- Platforms
- Desktop & mobile
What is Sellwerk.de?
Sellwerk.de brings digital services for businesses into one platform, from online visibility and marketing to bookings, reviews and everyday tools. It is part of the Sellwerk brand from directory publisher Müllerverlag.
The challenge was to make that range of products easier to understand, so people could see what was available and find the right place to start.
The challenge
As a Sellwerk.de user, I want a clear overview of the products and services available on the platform.
- Redesign the Sellwerk.de homepage for people who are signed in and those who are not.
- Organize products and services into clearer categories. The previous categories were success, image, office and marketing. The proposed categories were online presence, clients and services.
- Review the existing homepage content and decide what needs to stay in the new design.
- Create a prototype to show the new structure and how people would move through the platform.
Goal
- Make the user interface easier to understand.
- Help people understand what Sellwerk.de offers and how its products could help their business.
Process
Research
- Interface references
- Personas
Ideation
- Information architecture
- Brainstorming
- Sketches
Solution and testing
- Wireframes
- Style guide
- Design system
- User interface
- Prototype
- User testing
The previous website
Sellwerk.de products
- PRIME
- LIVE WEBINAR
- LEADMANAGEMENT
- ECHTZEIT-WEBANALYSE (real-time web analysis)
- MEINE FIRMENDATEN im Internet (my company data)
- SOCIALNETwerk (my advertising on Facebook)
- BUCHHALTUNGSTOOL (accounting tool)
- MEINE BEWERTUNGEN IM NETZ (my reviews)
- FIRMENPROFIL (company profile)
- Adwerk
- Btrusted — reputation tool
- SITEwerk
- VERZEICHNISWERBUNG — directory advertising
- Wettbewerbercheck — competitor overview
- MEINUNGSMEISTER (opinion master)
- ONLINEBUCHUNG (booking calendar)
Interface references
Personas

Maximilian
Schmidt
Bio
Maximilian runs a third-generation carpentry business. He is hesitant about moving the business online and only uses digital tools when necessary. He works with an established client base, with returning customers making up 60%.
Goals and needs
- Make money
- Enjoy free time
- Find new clients who are a good fit for his business
- Find employees
- Reach a wider market
- Find someone to help him with a website
Apps
WhatsApp
He has a Facebook account but does not use it.
Technology
He has a smartphone and a laptop.
His business has no website.

Hannah
Müller
Bio
Hannah has just opened her own beauty salon after working as a hairdresser for 13 years. She invested everything she had in the salon and has very little marketing experience.
Goals and needs
- Build her salon’s reputation
- Find new clients
- Build an online presence and ways to reach clients
Apps
WhatsApp
Instagram, Facebook and Pinterest for personal use
Online shops such as Zalando
Uber
Technology
She is comfortable with online shopping and social media.
Her salon has no online presence.
The value proposition
“Sellwerk.de offers you easy to use tools under one roof to help you grow your business.”
Information architecture
Brainstorming
Sketches
Wireframes
Style guide
Colors
HEX: #D3F1EE
HEX: #00E6C7
HEX: #00CCB1
HEX: #00AF9C
Sellwerk Green
HEX: #056A68
HEX: #F7F7F7
Site Background
HEX: #DAE0E7
Disabled
HEX: #647C99
Subtitle / Descriptions
HEX: #3D4C5E
Text Main
HEX: #F8FAFE
Onboarding Background
HEX: #FFFFFF
White
HEX: #FF5A5F
Error / Danger
HEX: #F7C01A
Warning
HEX: #7ED321
HEX: #4EDBED
Information
HEX: #1D252E
HEX: #1137FF
Call to Action
HEX: #1137FF
Call to Action Hover
HEX: #AE1AF7
HEX: #AB944C
Prime color
Icons
Buttons
Font
Design system
Elements
Components
Elements
Components
User interface
Activity page
Profile
Listing
Posting
Ad corrections
Settings
Blog
Prototype overview
User testing
First round with 7 participants
General design
- Participants responded positively to the colors and layout.
- Participants felt they could trust the platform.
- Participants found the typeface clear and easy to read.
- Text in profile input fields needed to be easier to read, and typography needed to be more consistent.
Closing feedback
- Participants could see themselves using the platform daily if the activity stream showed relevant updates, such as new leads or company emails.
- Participants were unsure how often they would use the platform. Monthly use seemed possible if the content was useful to their business.
- No participant identified a feature they disliked completely.
- Participants found profile requests, warnings and reminders useful, especially for noticing negative customer feedback.