Found at “Data Flow Diagram” on 2023-01-27 11:01:05.

The tighter fit between modeling language and problem domain creates better possibilities for true code generation (high to low abstraction level), in the same way as a compiler generates assembler from higher level code. You would need a tool that allows defining your modeling language and that supports it but these are becoming more and more available (MetaCase, Eclipse MEP GEF and I hear MS Whitehorse is supposed to go a similar direction (Domain-Specific Languages).