Polyglot programming may also come into the picture when the application's code can be separated into business code and technology code. The business code contains the top-level business logic that we actually write the application for, and this is the code that contains the logic that the customer pays for. The technology code is to support the algorithms coded in the business DSL.
Most enterprise applications contain these two types of code but many do not separate them. This leads to a monolithic application that contains repetitive code. When you feel that you are writing the same type of code when you need persistence or networking, and the same type of code again while coding some business rules, then this code smell suggests ...
