A wide variety of specific Decision Support Systems have been and can be built using Internet and Web technologies. This survey article is a focused and updated version of Power (2002) Chapter 11 "Building Web-based and lnterorganizational Decision Support Systems". The survey emphasizes the what, how and why of building Web-based DSS. Also, Web-based examples of all five major categories of DSS, communications-driven, data-driven, document-driven, knowledge-driven and model-driven, are summarized and analyzed.
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