This is the opening presentation for module 5, the final module of this course on digital preservation tools for repository managers, presented by the JISC KeepIt project. This module examines tools for measuring the trustworthiness of digital repositories and the effectiveness with which they are implementing preservation strategies. For more on this and other presentations in this course look for the tag ’KeepIt course’ in the project blog http://blogs.ecs.soton.ac.uk/keepit/