The first product that performed OLAP queries was Express, which was released in 1970 (and acquired by Oracle in 1995 from Information Resources).  However, the term did not appear until 1993 when it was coined by Edgar F. Codd , who has been described as "the father of the relational database". Codd's paper  resulted from a short consulting assignment which Codd undertook for former Arbor Software (later Hyperion Solutions , and in 2007 acquired by Oracle), as a sort of marketing coup. The company had released its own OLAP product, Essbase , a year earlier. As a result, Codd's "twelve laws of online analytical processing" were explicit in their reference to Essbase. There was some ensuing controversy and when Computerworld learned that Codd was paid by Arbor, it retracted the article. OLAP market experienced strong growth in late 1990s with dozens of commercial products going into market. In 1998, Microsoft released its first OLAP Server – Microsoft Analysis Services , which drove wide adoption of OLAP technology and moved it into mainstream.
As . Peirce expressed so clearly, "a person can stare stupidly at phenomena; but in the absence of imagination they will not connect themselves together in any rational way"* More interesting and useful are raising analytical questions regarding facts. With the first fact on rapid increase in health-care spending, one can ask why and how health-care spending increased faster than spending in other sectors? Relating to this question, one can also ask why and how the price of health-care increased faster than other prices?
The Task Force Report proposes four primary characteristics-relevance, specificity, novelty, and feasibility while defining the research question. Recommendations included: the practice of a priori specification of the research question; transparency of prespecified analytical plans, provision of justifications for any subsequent changes in analytical plan, and reporting the results of prespecified plans as well as results from significant modifications, structured abstracts to report findings with scientific neutrality; and reasoned interpretations of findings to help inform policy decisions.