Browse Definitions :
Definition

entity

Contributor(s): Joseph Flanigan

In general, an entity (pronounced N-tih-tee ) is an existing or real thing. The word root is from the Latin, ens , or being, and makes a distinction between a thing's existence and its qualities. An entity exists and that's all it needs to do to be an entity. The fact that something exists also seems to connote separateness from other existences or entities. In programming, engineering, and probably many other contexts, the word is used to identify units, whether concrete things or abstract ideas, that have no ready name or label. In blackboard discussions, one can draw something as yet unnamed and refer to that drawing as the representation of an "entity." (If the entity being discussed later gets ascribed qualities and a name, reference to it as an "entity" may no longer be useful.)

In some usages, an entity is close in meaning to object as it is used in object-oriented programming .

Here are some of the usages we know of:

1) In the Standard Generalized Markup Language ( SGML ), an entity is a specific character string that has the effect of causing a formatting program (such as a print formatter or a Web browser - which formats for a display screen) to select and present a particular character or notation. In this usage, an entity is a certain string of characters that together specify a unique font to be selected and displayed or printed. A word was needed for such a character string and "entity" came in handy. In HTML (which is a usage of SGML), each special entity or character string is given a name and the entities are therefore called "named entities."

2) In relation to a database , an entity is a single person, place, or thing about which data can be stored.

3) In data modeling (a first step in the creation of a database), an entity is some unit of data that can be classified and have stated relationships to other entities.

4) In the Open Systems Interconnection ( OSI ) model of network communication, an entity is an active element within a subsystem that communicates with other entities using a defined protocol.

5) In IBM's RACF security product, an entity is a user, group, or resource that is defined to RACF.

6) In FORTRAN , almost every program element is referred to as an entity, such as a procedure, an operator, an interface block, an input-output unit, a symbolic constant, and a statement label.

This was last updated in September 2005

Continue Reading About entity

Join the conversation

2 comments

Send me notifications when other members comment.

Please create a username to comment.

this sucks
Cancel
I have come across this website http://roohanimadad.ecrater.co.uk/ during my research on Chakras they have some really good Items to do with Chakras opening Items and Oils what you can use during meditating it help me a lot when I was trying to open my Chakras. hope everyone can benefit from it.it also have some really interesting stuff like Talismans Djinn/Jinn/Khodam Rings magical stuff
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • California Consumer Privacy Act (CCPA)

    The California Consumer Privacy Act (CCPA) is legislation in the state of California that supports an individual's right to ...

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

SearchSecurity

  • privilege creep

    Privilege creep is the gradual accumulation of access rights beyond what an individual needs to do his job. In IT, a privilege is...

  • BlueKeep (CVE-2019-0708)

    BlueKeep (CVE-2019-0708) is a vulnerability in the Remote Desktop (RDP) protocol that affects Windows 7, Windows XP, Server 2003 ...

  • endpoint detection and response (EDR)

    Endpoint detection and response (EDR) is a category of tools and technology used for protecting computer hardware devices–called ...

SearchHealthIT

SearchDisasterRecovery

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

  • business continuity software

    Business continuity software is an application or suite designed to make business continuity planning/business continuity ...

SearchStorage

  • Hadoop as a service (HaaS)

    Hadoop as a service (HaaS), also known as Hadoop in the cloud, is a big data analytics framework that stores and analyzes data in...

  • blockchain storage

    Blockchain storage is a way of saving data in a decentralized network which utilizes the unused hard disk space of users across ...

  • disk mirroring (RAID 1)

    RAID 1 is one of the most common RAID levels and the most reliable. Data is written to two places simultaneously, so if one disk ...

Close