How can a DSS help make a decision?

A Decision Support System (DSS) is a way to model data and make quality decisions based on it. Making the right decision in business is usually based on data quality and one's ability to sift through and analyze the data to find trends that solutions and strategies can be created from/for. Decision Support Systems are usually computer applications with a human component. They can sift through large amounts of data and pick between the many choices.