Where test data is concerned, having a few dice can be a very handy feature. Throw them to determine which choice a simulated end user would have done. Or use them to decide whether the next record of test data you are creating is red, green or blue. Random numbers - as test system tooling.
Classification data (transaction CL00 for the classification menu) is really data about data, which can be applied/used for many separate areas. It's available in many standard SAP elements such as the material master. So how to get to this information, when you need it in your report ?