This presentation will help you understand the importance of logging in applications. Every project is encountered with this aspect, functional or non-functional.This will become more and more important with current innovations: mobile (~offline) applications, SOA-architectures, Cloud integration. An overview of the Java Logging-ecospace is discussed. Eventually, the results are processed and analyzed with facilitating tools. What is logging? Why logging? Who uses logs and what are they used for? What needs to be logged? How to log in Java Log processing and analysis