The DSS is a type of information system which is among decision support systems. It aims to help managers to make decisions, to collect a structured system of ' random ' information and data in order to take effective decisions.In the context of this thesis will be a study and analysis of various systems and DSS applications that have been published in the scientific literature. Due to the large number of DSS, it was decided to focus our research on the DSS application in the field of Marketing.The purpose of the statistical analysis methods used according to specific selection criteria which will be determined in the early parts of this thesis.The aim is to inform stakeholders on the specific areas in which specific DSS systems are presented and applied as well as the projected future directions for theoretical analysis.