Appendix C - Glossary of Terms

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Appendix C - Glossary of Terms

The following table includes terms used throughout Review.




A distinct set of documents that were processed together and associated with one or more custodians.


Name indicating the source of the documents, such as the hard drive, network share, or media. This is not necessarily the author of the document, as the document could be stored on, and collected from, someone else’s hard drive.


Electronic file or email message.

Duplicate documents

Documents that have the same pith value.


Collection of related documents such as an email and its attachments or files with embedded content (PowerPoint with embedded Excel chart).


Unique number assigned to every single document in the database.

Issue Codes

"Tags" used to denote one or more factual issues related to a document. Documents can have an unlimited number of Issue Codes. Examples of common Issue Codes are "Hot", "Strategic", and "Financial Plan".


Designations that describe the disposition of a document. Examples of common Marks include Privileged, Non-responsive, and Produce. Marks are mutually exclusive; a document can have only one mark.


The name assigned to the repository of documents being reviewed; documents affiliated with a specific client’s investigation or legal proceeding. The words "Matter" and "Database" are interchangeable.

MD5 / Forensic Fingerprint

Identifies exact duplicates. If the difference between the sent and received copies of the same email may be critical enough that they need to be reviewed separately, for example, use this method for deduping instead of Pith.


Identifies duplicates of emails, such as the copies that were sent and received in different time zones. The reviewable content for both will be identical (while differing in aspects such as header and formatting), so deduping by pith will save you time.


When attorney work product (marks, issue codes, PODS) automatically copies to all Pith duplicates.


The Binders, Collections and/or Custodians included in the review set.

POD / Protective Order Designation

Explains the level of confidentiality of the document.