1. Describe or define DSS.
DSS, the term refers to an interactive computerized system that gathers and presents data from a wide range of sources, typically for business purposes. DSS applications are systems and subsystems that help people make decisions based on data that is culled from a wide range of sources.
2. Distinguish DSS from MIS.
Decision Support Systems (DSS) are a specific class of computerized information system that supports business and organizational decision-making activities. A properly designed DSS is an interactive software-based system intended to help decision makers compile useful information from raw data, documents, personal knowledge, and/or business models to identify and solve problems and make decisions.Typical information that a decision support application might gather and present would be:Accessing all of your current information assets, including legacy and relational data sources, cubes, data warehouses, and data marts,Comparative sales figures between one week and the next,Projected revenue figures based on new product sales assumptions,The consequences of different decision alternatives, given past experience in a context that is described While (MIS) is a system or process that provides the information necessary to manage an organization effectively. MIS and the information it generates are generally considered essential components of prudent and reasonable business decisions. MIS should have a clearly defined framework of guidelines, policies or practices, standards, and procedures for the organization. These should be followed throughout theinstitution in the development, maintenance, and use of all MIS.
3.Illustrate (give examples) how dss can improve companies a competitive advantages and organizational performance.
For example: a national on-line book seller wants to begin selling its products internationally but first needs to determine if that will be a wise business decision. The vendor can use a DSS to gather information from its own resources (using a tool such as OLAP) to determine if the company has the ability or potential ability to expand its business and also from external resources, such as industry data, to determine if there is indeed a demand to meet. The DSS will collect and analyze the data and then present it in a way that can be interpreted by humans. Some decision support systems come very close to acting as artificial intelligence agents.http://www.webopedia.com/TERM/D/decision_support_system.html
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