'Buzz' tags used most often over past 52 weeks (RFU)

This page provides an overview of 617 keyword tags in Ariadne, ordered by recent frequent usage.

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Term Description Charts

domain model

A domain model in problem solving and software engineering can be thought of as a conceptual model of a domain of interest (often referred to as a problem domain) which describes the various entities, their attributes and relationships, plus the constraints that govern the integrity of the model elements comprising that problem domain. The domain model is created in order to represent the vocabulary and key concepts of the problem domain. The domain model also identifies the relationships among all the entities within the scope of the problem domain, and commonly identifies their attributes. A domain model that encapsulates methods within the entities is more properly associated with object oriented models. The domain model provides a structural view of the domain that can be complemented by other dynamic views, such as Use Case models. (Excerpt from <a href="http://en.wikipedia.org/wiki/Domain_model">Wikipedia article: Domain model</a>)


Digital rights management (DRM) is a term for access control technologies that are used by hardware manufacturers, publishers, copyright holders and individuals to limit the use of digital content and devices. The term is used to describe any technology that inhibits uses of digital content that is not desired or intended by the content provider. The term does not generally refer to other forms of copy protection, which can be circumvented without modifying the file or device, such as serial numbers or keyfiles. It can also refer to restrictions associated with specific instances of digital works or devices. Digital rights management is used by companies such as Sony, Amazon, Apple Inc., Microsoft, AOL and the BBC. (Excerpt from <a href="http://en.wikipedia.org/wiki/Digital_rights_management">Wikipedia article: Digital rights management</a>)


DROID (Digital Record Object Identification) is an automatic file format identification tool. It is the first in a planned series of tools developed by The National Archives under the umbrella of its PRONOM technical registry service. (Excerpt from <a href="http://droid.sourceforge.net/">this source</a>)


Drupal is a free and open source content management system (CMS) and Content Management framework (CMF) written in PHP and distributed under the GNU General Public License. It is used as a back-end system for at least 1.5% of all websites worldwide ranging from personal blogs to corporate, political, and government sites including whitehouse.gov and data.gov.uk. It is also used for knowledge management and business collaboration. (Excerpt from <a href="http://en.wikipedia.org/wiki/Drupal">Wikipedia article: Drupal</a>)


DSpace is an open source software package that provides the tools for management of digital assets, and is commonly used as the basis for an institutional repository. It supports a wide variety of data, including books, theses, 3D digital scans of objects, photographs, film, video, research data sets and other forms of content. The data is arranged as community collections of items, which bundle bitstreams together. (Excerpt from <a href="http://en.wikipedia.org/wiki/DSpace">Wikipedia article: Dspace</a>)


Document Type Definition (DTD) is a set of markup declarations that define a document type for SGML-family markup languages (SGML, XML, HTML). DTDs were a precursor to XML schema and have a similar function, although different capabilities. DTDs use a terse formal syntax that declares precisely which elements and references may appear where in the document of the particular type, and what the elements' contents and attributes are. DTDs also declare entities which may be used in the instance document. XML uses a subset of SGML DTD. As of 2009 newer XML Namespace-aware schema languages (such as W3C XML Schema and ISO RELAX NG) have largely superseded DTDs. A namespace-aware version of DTDs is being developed as Part 9 of ISO DSDL. DTDs persist in applications which need special publishing characters such as the XML and HTML Character Entity References, which were derived from the larger sets defined as part of the ISO SGML standard effort. (Excerpt from <a href="http://en.wikipedia.org/wiki/Document_Type_Definition">Wikipedia article: DTD</a>)

dublin core

The Dublin Core set of metadata elements provides a small and fundamental group of text elements through which most resources can be described and catalogued. Using only 15 base text fields, a Dublin Core metadata record can describe physical resources such as books, digital materials such as video, sound, image, or text files, and composite media like web pages. Metadata records based on Dublin Core are intended to be used for cross-domain information resource description and have become standard in the fields of library science and computer science. Implementations of Dublin Core typically make use of XML and are Resource Description Framework based. Dublin Core is defined by ISO through ISO Standard 15836, and NISO Standard Z39.85-2007. (Excerpt from <a href="http://en.wikipedia.org/wiki/Dublin_core">Wikipedia article: Dublin Core</a>)

dublin core metadata initiative

The Dublin Core Metadata Initiative (DCMI) incorporated as an independent entity (separating from OCLC) in 2008 that provides an open forum for the development of interoperable online metadata standards for a broad range of purposes and of business models. DCMI's activities include consensus-driven working groups, global conferences and workshops, standards liaison, and educational efforts to promote widespread acceptance of metadata standards and practices. (Excerpt from <a href="http://en.wikipedia.org/wiki/DCMI">Wikipedia article: Dublin Core Metadata Initiative</a>)


DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions. Pre-recorded DVDs are mass-produced using molding machines that physically stamp data onto the DVD. Such discs are known as DVD-ROM, because data can only be read and not written nor erased. Blank recordable DVDs (DVD-R and DVD+R) can be recorded once using optical disc recording technologies and supported by optical disc drives and DVD recorders and then function as a DVD-ROM. Rewritable DVDs (DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased multiple times. DVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format, as well as for authoring AVCHD discs. DVDs containing other types of information may be referred to as DVD data discs. (Excerpt from <a href="http://en.wikipedia.org/wiki/DVD">Wikipedia article: DVD</a>)

dyslexia action