Information discovery (ID) tools come in a variety of packages and form-factors. There are best-of-breed data visualization tools, such as those marketed by BIS2, SAS Institute, Tableau, and TIBCO Spotfire; discovery-focused business intelligence (BI) tools, such as those marketed by QlikTech (QlikView), and Panorama Software; collaborative discovery offerings, like JackBe and LyzaSoft, which can't easily be slotted into any single category; and Yellowfin, a full-blown software-as-a-service (SaaS) BI and analytic discovery platform.
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