These coding conventions were developed as side-product to our lecture “Software Architecture for Distributed Embedded Systems” held by Prof. Steinhorst at TUM.
The convention of prefix interfaces with I seems C# (or maybe also C++) specific and almost never used in Java or Javascript.
Thank you for pointing this out. I will think about it again and discuss with our team.
In JavaScript there are no interfaces but in Java I remember that I have seen this quite often.