Litigators and litigation support professionals who have been practicing long enough recall the days when Bankers Boxes filled with original documents (or copies of originals) were the primary source of "data" in litigation. For such professionals, the tedious and time-consuming task of identifying relevant information in such documents was, and still is, a challenge in commercial and other categories of litigation. Today, most documents—even if initially received in physical, hard-copy format—are stored electronically with sophisticated electronic document storage warehouses, which provide the ability to easily search document text and metadata. Despite these advancements in technology, the document review process may still be time-consuming.