Did you ever cry, stuck in front of your monitor while comparing files in a human-unreadable format (XML, JSon, …)? Did you ever told yourself you could do smarter data processing if only you knew the delta between your inputs? Do you always trust the documentation of a tool that tells you that the new version is backward compatible? Have you ever had to migrate data to a new version of a schema or a data model? EMF Compare may help you to compute, display and consume differences between many data formats and this talk will show you how.