Best wishes for the New Year 2020!
For the topics click on the respective tabs - you will get to an overview page.
Click on the tab at the top of the individual pages to return to the overview page,
or on another tab to change the topic.
January 3, 2020: Calendar for 2020 published
August-December 2019: New pages and updates in the Astronomy section
wrote a number of articles for the SAP-internal User Experience Website but
closed that section in 2008.
On the walodesign Website, I republished my articles - of course without SAP specifics.
The articles appear in three categories: DAU Stories, UI Design Thoughts und UI Design Issues.
In addition, I copublished my UI Design Blink blog articles (2010, 2011, 2012, 2013) there (slightly adapted).