What's some concrete example of OLAP cube? What does Alice, a data analyst, actually do when she gets to work at her computer? What does she interact with on th

What's some concrete example of OLAP cube? What does Alice, a data analyst, actually do when she gets to work at her computer? What does she interact with on the screen? Does she use some specialized software to project the data cube into two dimensions (contingency tables) to find hidden meaning in the data? There's a lot of abstract talk and no actual examples on the Internet, except for SQL Server tutorials which always end up with some kind of E-R diagram.