Simplified Programming for Expertise

Domain Specific Languages (DSL) have been proposed for years to bring the capability of computer programming to the non computing domain expert. By formulating and editing domain rules.  We worked with them in the form of expert systems, where rules were seen as directly expressing expertise, and experts might edit them by themselves without technical help.  Needless to say, that did not work  as expected.  There were too many complexities and unintended consequences to make it practical.  ComputerWorld discusses DSLs.