Uneeg uses Highstage across their development projects. Documents are electronically signed by reviewers and approvers, according to FDA CFR Part 11 requirements. Nita Volder Hansen – Process Engineer at Uneeg – is a big fan of references, and for a good reason – references in Highstage are used to manage which revision is correct and valid. Using the Reference Lock functionality, a revision can be locked to the DHF even if newer versions exist.