What Is Decision Support System?

What is the difference between decision support system and recommendation system?

  • Answer:

    In short - decision support engines are tools that are designed to contextualize a decision environment for a user, and recommendation engines are designed to provide similar options given an initialized set of preferences or relationships.  For example, a decision support system might help a physician decide which drug to prescribe given a patient's medical history and a database of drug trials, whereas a recommendation system might provide prompt a user with similar products given a database of product data.  Decision support systems are rarely used in consumer contexts, and are much more relevant to harder problems (e.g., clinical or operational) that are generally semi-structured or unstructured, and which are sequential in nature (e.g., many layers of decision trees).

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Other answers

A very naive way of showing the difference is that a recommender system is supposed to suggest one activity (i.e. watch this movie), whereas a decision support system is supposed to aid the user in making a choice (i.e. explain why a choice should be made, how the decision was made, what were the factors leading to the decision, etc.)

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