At Babbel our learning content is maintained and created through a custom-made content authoring system based on Angular 1.x. The application has become quite complex by now, counting about 80 custom directives, 35 services and 10…

I’ve been reading Roy Fielding’s dissertation “Architectural Styles and
the Design of Network-based Software Architectures” (http://www.ics.uci.edu/~fielding/pubs/dissertation/top.htm) in which he introduces the concept of Representational State Transfer (REST).

Just noticed this usability fail in the online interface of my savings account:

“You folks have a lot of angry customers out there. How are you going to respond?” is the finishing line as well as the central question Alan Cooper is trying to answer throughout his book. Cooper is an angry guy, you can…