Chapter 12 shows how to build a disconnected table (one without a relationship to other tables) that can be used to provide values to other calculations. You can insert a slicer based on the disconnected table to allow report users to select values from the table, like parameters.
The chapter provides 1.5 examples of using this technique. The first one shows how to select a USD/EUR exchange rate and see how sales would be affected. The second example starts to show how to use a “slicer parameter” to set the minimum list price of products to show in a PivotTable. This example is not finished in Chapter 12 because, in order for the measure behind the calculation to work, we must use the FILTER() function in the calculation. And that’s the topic of the next chapter.