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It is much more important to understand why a client became sick then the fact that he or she got sick.

Introduction

For purposes of this web site, Analysis Services will be defined as those services or applications that support decision making.

On Line Analytical Processing (OLAP)

While data warehouses are usually based on relational technology, OLAP uses a multidimensional view of aggregate data to provide quick access to important information for further analysis. OLAP enables analysts, managers, and executives to gain insight into data through fast, consistent, interactive access to a wide variety of possible views of information. OLAP transforms raw data to useful information so that it reflects the real factors affecting or enhancing the line of business of  the enterprise. 

The data warehouse stores and manages the data, while OLAP converts the stored data into useful information.

OLAP tools can improve the productivity of the whole organization by focusing on what is essential for its growth, and by transferring the responsibility of the analysis to the operational parts of the organization

By moving the analyses to the clinical level, the organization empowers the operational managers to makes decisions based on their own environments.

Features of OLAP

OLAP must always have the following elements:

• Multidimensional views of data (data cubes)
• Calculation-intensive capabilities
• Time intelligence

On-Line Analytical Processing (OLAP) builds on the work that has already been laid out in the discussion of Relational databases and Data Warehousing. While OLAP uses these technologies, it is essentially a different application architecture. 

OLAP makes it possible to solve market analysis and forecasting by using database designs that are array-oriented and multidimensional in nature.

Decision Support

The ability to collect large amounts of data and perform complex calculations does not tell us what questions to ask. Information is a level above traditional data collection and is generally derived from an act of comparisons. OLAP makes these comparisons relatively easy. 

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