In this session, with clear focus on Machine Translation (MT) quality, we will discuss different ways to improve MT engines. Which engine do you use and how do you measure improvement? What are the right metrics to evaluate MT quality for the specific content types? How do you interpret and act on the evaluation results? It's fine when errors are labeled and analyzed, but how can that help improve your engine? Are there best practices available? And how about Neural MT? Should we measure that differently? After some use cases shared by the speakers, these questions will be addressed in the break-out session.