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 for the different problem domains, can bring significant improvements in development.
In this article, we will showcase a DSL we are using at modellwerkstatt.org to model standardized user interfaces for our business applications. The inherent logic of the DSL is capable of visually displaying whole entity-graphs in a very simple, declarative manner. We will point out how easy it is to interact and weave in plain Java code, an interaction that leads to more flexibility and safety, for example, type-safety. After distinguishing between internal and external DSLs, we will introduce JetBrains MPS and dive straight into our UI DSL. Finally, we will summarize our thoughts on DSL interaction and extension. https://goo.gl/BK7Lq1 #DataIntegration #ML
