Most of the financial decisions in a form occur at the: Traditionally, organizations use human resource management system to: The difference between a decision support system and an expert system is that the expert system is built to provide advice to non-experts and guide them to make a better decision. A decision support system is used by a trained decision maker to collect data, analyze models and produce output. In expert system development, special purpose languages like LISP and Prolog make the development job easier, but customer programming is cheaper and less time consuming.