Electronic discovery and its transformational consequences have been a defining feature of 21st century litigation. The sheer proliferation of data and associated complexity has necessitated the development of specialized software to manage and catalog this information. Data have become so complex that protocols surrounding metadata, i.e., data about data, have become a regular aspect of the discovery process. Agreements regarding the use and discoverability of electronically stored information (ESI) are commonplace in any case with a sufficiently large volume of documents.