DAT
(Digital Audio Tape) Used as a storage medium in some backup systems.
Data
Information stored on the computer system and used by applications to accomplish tasks.
Data Compilation
Information in a format that cannot be read without first being converted or extracted. Data compilations are expressly included as ESI under Fed. R. Civ. P. 34(a) and discussed in Rule 34 Advisory Committee notes.
De-duplication
De-duplication ("De-duping") is the process of comparing electronic records based on their characteristics and removing duplicate records from the data set. This process can be done one of two ways. First, in universal or case (level) de-duplication, only a single copy of each document is retained across a whole case. Second, in custodian de-duplication, a single copy of each document is retained within any single custodian. In custodian (level) de-duplication, there will be duplicates across the whole case, but also visibility into which custodians had possession of a copy of a particular document. De-duplication may be done by comparing documents' hash values, which identifies exact copies, or by technology that identifies duplicates with only minor, non-substantive differences.
Deleted Data
Deleted data is data that, in the past, existed on the computer as live data and which has been deleted by the computer system or end-user activity. Deleted data remains on storage media in whole or in part until it is overwritten by ongoing usage or "wiped" with a software program specifically designed to remove deleted data. Even after the data itself has been wiped, directory entries, pointers, or other metadata relating to the deleted data may remain on the computer.
Deleted File
A file with disk space that has been designated as available for reuse. The deleted file remains intact until it has been overwritten with a new file.
Deletion
Deletion is the process whereby data is removed from active files and other data storage structures on computers and rendered inaccessible except using special data recovery tools designed to recover deleted data.
Desktop
Usually refers to an individual PC – a user's desktop computer.
Digital
Storing information as a string of digits – namely "1"s and "0"s.
Disc/Disk
A floppy disk or a hard disk. Both types have a magnetic storage medium on which data is digitally stored. A disc may also refer to a CD-ROM.
Distributed Data
Distributed data is an organisation's information that resides on portable media and non-local devices such as home computers, laptop computers, floppy disks, CD-ROMs, personal digital assistants ("PDAs"), wireless communication devices (e.g., Blackberry), zip drives, Internet repositories such as e-mail hosted by Internet service providers or portals, web pages and the like. Distributed data also includes data held by third parties such as application service providers and business partners.
Document
Fed. R. Civ. P. 34(a) defines a document as "including writings, drawings, graphs, charts, photographs, phono records, and other data compilations." In the electronic discovery world, a document also refers to a collection of pages representing an electronic file. E-mails, attachments, databases, word documents, spreadsheets and graphic files are all examples of electronic documents.
Document Retention
The preservation of documents and data, including hard copy and electronic documents, databases and e-mails, that are created, sent and received in an organisation’s ordinary course of business.
Document Retention Policy
A systematic plan for reviewing, maintaining and destroying documents and data, including hard copy and electronic documents, databases and e-mails, that are created, sent and received in an organisation’s ordinary course of business.
Electronic Discovery
The discovery of electronic documents and data including e-mail, web pages, word processing files, computer databases and virtually anything that is stored on a computer. Technically, documents and data are “electronic” if they exist in a medium that can only be read through the use of computers. Such media include cache memory, magnetic disks (such as computer hard drives or floppy disks), optical disks (such as DVDs or CDs) and magnetic tapes.
Electronic Mail Message
Electronic mail, commonly referred to as “e-mail”, created or received via an electronic mail system, including brief notes, formal or substantive narrative documents and any attachments, such as word processing and other electronic documents, which may be transmitted with the message.
Electronic Record
Information recorded in a form that requires a computer or other machine to process it and that otherwise satisfies the definition of a record.
Email Message Store
A top most e-mail message store is the location in which an e-mail system stores its data. For instance, an Outlook PST (personal storage folder) is a type of top most file that is created when a user’s Microsoft Outlook mail account is set up. Additional Outlook PST files for that user can be created for backing up and archiving Outlook folders, messages, forms and files. Similar to a filing cabinet, which is not considered part of the paper documents contained in it, a top most store generally is not considered part of a family.
Encryption
A procedure/technology that renders the contents of a message or file unintelligible to anyone not authorized to read it.
ERP (Enterprise Resource Planning)
A way to integrate data and processes of an organisation into one single system. Usually ERP systems will have many components including hardware and software, in order to achieve integration. Most ERP systems use a unified database to store data for various functions found throughout the organisation.
Ethernet
A common way of networking PCs to create a LAN.
Extranet
An Internet based access method to a corporate intranet site by access through a security firewall. This type of access is typically utilized when two or more businesses want a common place to share electronic documents on an ongoing basis.
Family Range
A description of the range of documents from the first Bates production number assigned to the first page of the top most parent document through the last Bates production number assigned to the last page of the last child document.
Family Relationship
Two or more documents that have a connection or relatedness because of some common characteristics.
File
A collection of data of information stored under a specified name on a disk.
File Extension
A tag of three or four letters, preceded by a period, which identifies a data file's format or the application used to create the file. File extensions can streamline the process of locating data. For example, if one is looking for incriminating pictures stored on a computer, one might begin with the .gif and .jpg files.
File Server
A computer that is utilized as a storage location for files that are accessible to many computers networked together in a LAN. File servers may be employed to store e-mail, financial data and word processing information, or to back up the network.
File Sharing
The ability to share files stored on the server among several users. File sharing is a key benefit of a network.
Firewall
A set of related programs that protect the resources of a private network from users of other networks.
Floppy
An increasingly rare storage medium consisting of a thin magnetic film disk housed in a protective sleeve.
Format
The internal structure of a file, which defines the way it is stored and used. Specific applications may define unique formats for their data (e.g., “MS Word document file format”). Many files may only be viewed or printed using their originating application or an application designed to work with compatible formats. Computer storage systems commonly identify files by a naming convention that denotes the format (and therefore the probable originating application) (e.g., “DOC” for Microsoft Word document files; “XLS” for Microsoft Excel spreadsheet files; “TXT” for text files; and “HTML” (for Hypertext Markup Language (HTML) files such as Web pages). Users may choose alternate naming conventions, but this may affect how the files are treated by applications.
Fragmented Data
Fragmented data is live data that has been broken up and stored in various locations on a single hard drive or disk.
FRCP
(Federal Rules of Civil Procedure) Laws that set forth litigation protocol in the federal court system.
FTP
(File Transfer Protocol) An Internet protocol that enables you to transfer files between computers on the Internet.