As I get many questions around how to find a job in Germany quite often, I wanted to document and share my own experiences to support a bigger audience by making it easily accessible for anyone. First of all, please keep in mind that this is a long journey. Please…

“Enlightened trial and error outperforms the planning of flawless execution.” — David Kelly — 1. Testing without a hypothesis or having a hypothesis that is not backed up with data and insights: If we run an experiment without an hypothesis, we can gather some information and get some results, but we would probably have a hard time to interpret or take lessons from them, since…

“Without data, you’re just another person with an opinion.” — W. Edwards Deming Creating a hypothesis is an essential part of the A/B testing process since we are creating our variations based on our hypothesis. …

“The difference between theory and practice is larger in practice than the difference between theory and practice in theory.” — Jan L.A. van de Snepscheut We already discussed that A/B testing is a way to compare two versions of something to figure out which performs better. …

Put light against light — you have nothing. Put dark against dark — you have nothing. It’s the contrast of light and dark that each give the other one meaning. — Bob Ross Sky is the limit! We can either test just a single element or the full-page redesign or…

“Almost any question can be answered cheaply, quickly and finally, by a test campaign. And that’s the way to answer them, not by arguments around a table.” — Claude Hopkins — There are a variety of things we can test with A/B testing ranging from; New features, Changes to the user interface (UI), to less user visible backend changes like; Ranking, recommendation or search algorithms, Speed or latency.

“The fewer the facts, the stronger the opinion.” — Arnold H. Glasow — The main reason is that, as data-driven and learning organizations, we want to make data-informed product and design decisions rather than just relying on guesswork and intuition. We often tend to take our assumptions as facts and believe in our gut feeling and intuition while making decisions. However, we don’t…

The analogy between the user flow of a price comparison website and the double diamond model — I had set out to create the user journey map of a price comparison website where a journey map is defined as the visualization of the process that a person goes through in order to accomplish a goal. It helps us to learn more about our users and how they…

“Experimentation is the least arrogant method of gaining knowledge.” — Isaac Asimov — Let’s lay the foundations of A/B testing with its definition and brief history. A/B testing, at its simplest, is a way to compare two versions of something, in our digital product case it is a web page or an app, to figure out which performs better. In A/B tests, users…