 Hi Kotica, I live in Germany, of course the name sounds very German, I'm from Berlin, right now I'm living in Berlin. I'm either a UX mentor, it's a document foundation, I'm doing all usability related stuff for a liberal office, it means to get real visual design as well as to optimize the workflows and coordinate everything behind the scenes. It was pretty interesting, we developed in the last version a new control, it was called the Notebook Bar which is a blank canvas actually. It is meant to be a thing to get more flexibility for the interaction for the UI. Today or in the past we had just the normal toolbar at the top where you can click on a button and you start an action or something like that. It has a few means to start the action and some configurability but it is limited. And it has also some drawbacks, drawbacks as the increasing functionality leads to more clutter on the toolbar. It gets difficult to find the right function and the amount of features that you have there. So the talk was about how to overcome the limitation, not really the limitation but the drawbacks of the classical toolbar with a new concept. It is one implementation to the thing that the developer realized with the blank canvas of a notebook bar and we as the UX team tried to make it really nice with a conceptual group configuration in this notebook bar. And my talk was about reasoning behind these implementation. Psychology is like every other study you are moved slowly to a specific direction. You are going into a kind of thinking about everything. And psychology is about methodology and about clear approaches to questions, statistics as well. What is special in my background is that I maybe try to analyze the question in a different way compared to developers at study informatics. On the other hand you know a lot about perception which is for instance important for the notebook bar which I presented here. You know how Gestalt laws are, what the thinking is about the Gestalt law and that you can have a law of proximity. Just not a big deal to know for everyone else but you have some knowledge here, perception and memory there and processing there. So it's a lot of basic things that you know about human being and I think it contributes a lot to understanding how people interact with things. The other aspect is of course also that you know how to approach to people and how to talk to them, how to do a survey. It's sometimes not easy to just ask a simple question do you like it or do you don't like it. It's often better to come from behind and ask differently and do an implicit way of analyzing information. The good aspect on usability and your access said you have a very varying topic. Sometimes you do talk to, often I do talk to people and chat over channels on the internet like Google Hangouts or Jitsie or also on forums and the like. You have to observe the development to look for other as well companies and developments to compare what they are doing, how the mainstream is going and to see if it makes sense to introduce some new stuff into our project as well. So there's no specific workflow that I have every day. Usually I start to read emails of course like everyone else and I look through all the news feeds and check the emails. News on the feeds, read what's going on in the world and in particular on the technological areas. After that I used to read a bug tracker. I get a lot of information from bugzilla. If our users complain about features or request new ones it's important to integrate it into a concept which is the most important aspect. In my opinion about usability we have a good concept behind the new functions so that it makes sense to implement it and we don't need to reinvent the wheel every time another question comes up. So days go on and I also try to implement things myself which takes as a newbie a lot of time to find the right place in the code where you change for instance an RGB value to make things more appearing. First of all it's not a challenge it is also a big advantage so the community is so amazing that it's not a challenge it is a good point for us. If I ask people on one of our social media channels about their opinion a tiny piece on software. Do you like it in this way or that way? Just to get an impression about normal users I get a huge response quickly and I can base my suggestions for developers on what users say. So the community is a bless for us. On the other hand of course if you would say design work with a large community it leads often to something just called bike sharing. You start discussion which are endless. People have opinions they like it in their own way and the other one shows up and talks about it differently. It is a challenge because usability improves this process by for instance persona. If you do not talk about your personal feeling about a feature or if you like a specific color for instance. But change your mind into a different person what everyone can do then it is much easier to find a conclusion. We at Libraffis have such personas defined and we talk about Benjamin our novice user which is just a boy. And it is easy to say Benjamin would do it in this way and we can in our team think about yes that is true. And I can step back a little bit from my personal position and think about what would Benjamin do. So yeah community is great and I love to work with these people.