<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> A decision support system (DSS) is an information system that supports business or organizational decision - making activities . DSSs serve the management, operations and planning levels of an organization (usually mid and higher management) and help people make decisions about problems that may be rapidly changing and not easily specified in advance--i.e. unstructured and semi-structured decision problems . Decision support systems can be either fully computerized or human - powered, or a combination of both . </P> <P> While academics have perceived DSS as a tool to support decision making process, DSS users see DSS as a tool to facilitate organizational processes . Some authors have extended the definition of DSS to include any system that might support decision making and some DSS include a decision - making software component; Sprague (1980) defines a properly termed DSS as follows: </P>

Q1 what is dss (decision support system) explain different types of dss
find me the text answering this question