OpenEdge ABL

This is a business application fourth-generation programming language that offers a high level of abstraction. In fact, the goal of OpenEdge ABL is to be extremely user friendly, providing anything a developer needs for Rapid Application Development. That’s why this language is perfect for prototyping and creating systems with simple interfaces. 

OpenEdge Advanced Business Language, or OpenEdge ABL for short, is a business application development language created and maintained by Progress Software Corporation (PSC). The language, typically classified as a fourth-generation programming language, uses an English-like syntax to simplify software development.