<Li> A communication - driven DSS enables cooperation, supporting more than one person working on a shared task; examples include integrated tools like Google Docs or Microsoft Groove . </Li> <Li> A data - driven DSS (or data - oriented DSS) emphasizes access to and manipulation of a time series of internal company data and, sometimes, external data . </Li> <Li> A document - driven DSS manages, retrieves, and manipulates unstructured information in a variety of electronic formats . </Li> <Li> A knowledge - driven DSS provides specialized problem - solving expertise stored as facts, rules, procedures, or in similar structures . </Li>

What is dss what are the models explain its components