Learn about a DSL made to address the unique challenges of business application development, especially business logic handling and user interface design. By Daniel Stieger, Wolfgang Messner, Oscar Rodriguez and Vaclav Pech.  Business application development covers various problem domains, like data persistence, business logic handling, and user interface design. A single DSL is not sufficient to achieve productivity and quality gains, nor are multiple DSLs that are not neatly integrated with each other. Only a holistic approach, where several DSLs can be used seamlessly to model solutions