Innovative Mobile Design

A modern and intuitive App that focuses on users.

at a glance

Customer root-service ag, Switzerland
Sector Hardware & software solutions
Project Perigon Mobile - UX design & prototype
Devices Phablet, tablet, smartphone
Services UX design, context analysis, user testing, prototyping, style guide, UI Development

Our mission

Ergosign revised the user interface design for the “Perigon Mobile” app. Both the concept and visuals were redesigned to optimally reflect the user needs and use contexts of nurses. Using an Antetype prototype, we were also able to validate the knowledge from the contact analysis. The UI was then developed by Ergosign and connected to the backend provided by root-service ag.

"Perigon Mobile is the "core" of technical nursing infrastructure."

Patrik Bailer

Patrik Bailer

Spitex Zürich Limmat AG

Our Focus

The nursing staff and their work flow are in the focus and shall be optimally supported through the app. In Switzerland, the app is used in over 10 million operations per year. It serves as comprehensive helping tool for the whole day planning, including patient data and time recording. This shall help the nursing staff to better concentrate on their patients.


Structuring the digitalization of big, analog amounts of data - mostly handwritten - for the use on mobile devices in a new working process was a clear challenge. The new design is intended to build up trust for the application and its intuitive usage through reliability and advanced functions. to enable an optimal integration into the users’ daily working routine and support them in their tasks.

Screens der Perigon App von Ergosign


Observations over several days and interviews with nursing staff in their challenging workday, many practical insights were gathered, allowing for a user-oriented redesign of the application. Understandable visualizations ease to oversee important information. The handling is tailored to intuitively fulfill the users’ needs.


The UI was developed using state of the art Android technologies. Via Data Binding and the MVVM Architecture pattern under use of the Android Architecture Components (AAC), the app is a technological innovation on the market. An efficient UI development was ensured by relying on the style guide and material design. The interface implementation to the backend system was then taken over by root-service ag.

Perigon App in use


The goal is to make relevant data, like contact and way information, medical patient data and additional information available as fast as possible. Through constant synchronization and personalized notifications, the app shows changes in the work plan made by the central office only to the affected nursing staff.


The root-service AG is realizing complete solutions for hardware, software and networks. The focus lies on the development of applications for mobile usage on smartphones and tablets. Together with Ergosign the „Perigon-App“ was made more intuitive and user friendly. The root-service AG implemented the data connecting of the UIs to the existing backend.

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Key Technology

Key Technology

Leica Geosystems

Leica Geosystems