The test case descriptions will give you an idea of how you might want to get started using the criteria. Keep in mind, however, that you don't need to choose the same criteria or use the same methods as these agencies. Upon its publication, Minnesota's Information Policy Council began recommending the Handbook's use by state agencies. As a result, a number of governmental entities have incorporated the TIS methodology into their systems development process. As well, the Ohio Electronic Records Committee has adapted the Handbook for use within that state.
Any time is the right time to start considering the information system trustworthiness.
So, let's jump into the criteria set. TIS Handbook last updated September 2001, Version 3.