The comparative data between the different periods of time is of great importance in the reports. You can compare the revenue, sales, pending status analysis across the different sets of timeline. This can be obtained by the time series wizard. Here are the steps: 1.First thing is to decide the time periods that have to compared. 2.Create the period tables with keys to the specific column data from the fact tables. Fact tables are the ones that contain the total/cumulative data statistical information that we are about to compare. 3.Create the Time series wizard in the business model. 4.Configure the Time Series wizard with appropriate keys from the period table and intended measures for comparison. 5.After this setup, you can run the Time Series wizard and it will give you all the processed information in the form of the logical table sources that have been created, the period tables used and the alias tables that have been created and used and the comparison details. These comparison details can then be used in the reports.