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I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

Repost from 16 June 2020: COVID-19 Tracing App for Germany

Repost from 16 June 2020: German COVID-19 tracing app available now. Read more

German COVID-19 Tracing App Available Now

Earlier today, the highly anticipated COVID-19 tracing app for Germany, called Corona-Warn-App, has been released. The iOS version is available on the App Store. The Android version can be downloaded at Google Play. The Corona-Warn-App is based on the DP3T (Decentralized Privacy-Preserving Proximity Tracing) architecture and the joint specification by Apple and Google for privacy-preserving exposure notification, which implements this architecture as an API for official public health providers to draw upon. The app is developed and published as open source under the Apache ... Read more

Reprise: Petro Salema – Storyteller Extraordinaire

Almost five years ago I wrote about a talk given by Petro Salema at that year's edition of beyond tellerrand in Düsseldorf: Petro Salema – Designing Interfaces That Think @ beyond tellerrand Düssedorf 2015 A common advice given regarding talks and presentations, especially ones of a more technical variety, is to not just talk about technical details but to tell a story. While this piece of advice is good and well-intentioned it's not usually exemplified or specified in any more detail. Steve Jobs is ... Read more

Zoltan Kollin: Misused mobile UX patterns

Zoltan Kollin, UX designer, co-organizer of the Amuse UX Conference and co-author of UX Myths (another highly recommendable collection of user experience tips and guidelines) recently wrote a post about misused mobile UX patterns. We've seen it all on the mobile platform of our choice: icons whose meaning is hard to guess the dreaded hamburger menu and hidden screens inconsistent gestures and features that are hidden behind them Zoltan mentions those and a few more bad practices, explains why they're bad and gives examples of better ... Read more

Toby Shapshak: You don’t need an app for that

In a 2013 TED talk South African writer Toby Shapshak talks about innovation out of necessity and how entrepreneurs in Africa are solving real-world problems for both their own continent and the world as a whole: Read more

Petro Salema – Designing Interfaces That Think @ beyond tellerrand Düssedorf 2015

Earlier this year at beyond tellerrand Düsseldorf 2015 I had the privilege to attend a talk by Petro Salema. Petro shared his insights about today's limits in human computer interaction, attention span, mental bandwidth and how to address these issues. While the subject matter itself is interesting enough already I've never personally witnessed such rivetting storytelling before. He started his talk with a captivating story from his home country Tanzania about Bwakila, a machete-wielding madmen. This story nicely set the ground for the ... Read more

Impulse – Dynamic Physics Animations For The Mobile Web

Impulse is a promising new JavaScript animation framework for mobile websites. The animations generated with Impulse look very smooth and natural. Very impressive work. Go check out the examples page for a first glimpse. Read more