In our last weekly knowledge sharing session at inoio, we discussed our experiences and thoughts on how to design kafka topics. I.e. how to decide to which topic a (new) event type should be published. In customer projects sometimes we’ve seen that Kafka topics have not been chosen properly, so that later this had to be changed. Since mostly several systems / teams are affected by such a change, this causes quite some effort. So it is better to invest some time in this decision in advance. How to choose the Kafka topic for an event doesn’t seem to be discussed that much in the public, therefore we want to share our thoughts on that here.