Browse Definitions :
Definition

Document Type Definition (DTD)

A Document Type Definition (DTD) is a specific document defining and constraining definition or set of statements that follow the rules of the Standard Generalized Markup Language (SGML) or of the Extensible Markup Language (XML), a subset of SGML. A DTD is a specification that accompanies a document and identifies what the funny little codes (or markup) are that, in the case of a text document, separate paragraphs, identify topic headings, and so forth and how each is to be processed. By mailing a DTD with a document, any location that has a DTD "reader" (or "SGML compiler") will be able to process the document and display or print it as intended. This means that a single standard SGML compiler can serve many different kinds of documents that use a range of different markup codes and related meanings. The compiler looks at the DTD and then prints or displays the document accordingly.

As a matter of fact, the document you are looking at is coded in a particular DTD called HTML. In this case, the "compiler" or document handler is your Web browser which is designed to handle text documents encoded with HTML tags. (Other programs could be developed that would handle HTML and other DTDs as well.)

IBM and many large and small corporations are converting documents to SGML or, more recently, to XML, each with its own company document type definition or set of definitions. For corporate intranets and extranets, the document type definition of HTML provides one new "language" that everyone can format documents in and read universally.

This was last updated in September 2005

SearchCompliance

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

  • information governance

    Information governance is a holistic approach to managing corporate information by implementing processes, roles, controls and ...

  • enterprise document management (EDM)

    Enterprise document management (EDM) is a strategy for overseeing an organization's paper and electronic documents so they can be...

SearchSecurity

  • unified threat management (UTM)

    Unified threat management (UTM) describes an information security (infosec) system that provides a single point of protection ...

  • physical security

    Physical security is the protection of personnel, hardware, software, networks and data from physical actions and events that ...

  • attack vector

    An attack vector is a path or means by which an attacker or hacker can gain access to a computer or network server in order to ...

SearchHealthIT

SearchDisasterRecovery

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage

  • cloud storage

    Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, ...

  • cloud testing

    Cloud testing is the process of using the cloud computing resources of a third-party service provider to test software ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close