title: Please suggest ways to start building Business Analytics solutions using existing mysql databases
body: <p>I believe there are three layers to build up- 
  1) Presentation Layer/Data Visualization Layer
  2) Constucting olap server(like mondrian) to access mysql database and produce results.
  3)Using Olap Client API(olap4j) to build OLAP cubes that store intermediate data.</p>
  
  <p>Is this approach correct or is there any thing wrong with it?</p>
  
  <p>Please suggest.
  Thanks in Advance</p>