If you are not quite sure yet whether Xtext™ is an appropriate solution for your task, we recommend to watch the presentation below, as it gives you a good overview of what Xtext™ can do. If you want to dive in and learn, you should start with one of the getting started tutorials on the left. Also having the book as an additional resource to the online documentation is certainly a good idea.
An introduction and overview of Xtext™, given in September 2015 at JavaZone in Oslo, Norway. In this presentation a rule-language for home automation is developed.
Overview: