A decision support system (DSS) is a computer program application tha analysis business data and present it so that users can make business decision more easily. It is an "informational application" (to distinguish it from an "operational application" that collect the data in the course of normal business operation)
Many people think of DSS as a special part of a business, most companies have actually integrated them into their day to day operating activities. For instance, many companies constantly download and analyze sales data, budget sheet, and forecast. They update their strategy once they analyze and evaluate the current result. DSS have a definite structure in business. In reality, however, the data and decisions that are based them are fluid and constantly changing.
DSS are used to collect data, analyze and shape the data that is collected, and make sound dicisions or construct strategies from analysis. Whether computer, databases or people are involved usually does not matter.
It is important to note that although computers and artificial intelligent are at work, it is ultimately up to humans to execute these strategies or formulate the data into a usable hypothesis.
This is how the DSS working...
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