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The terms data dictionary and data repository indicate a more general software utility than a catalogue. A catalogue is closely coupled with the DBMS software. It provides the information stored in it to the user and the DBA, but it is mainly accessed by the various software modules of the DBMS itself, such as DDL and DML compilers, the query optimiser, the transaction processor, report ...
The Case Report Tabulation Data Definition Specification (define.xml) draft version 2.0, the oldest data definition specification, is part of the evolution from the 1999 FDA electronic submission (eSub) guidance and electronic Common Technical Document (eCTD) documents specifying that a document describing the content and structure of included ...
The NIEM XML data dictionary spreadsheet is a tangible representation of the entire NIEM data dictionary. It includes all of the element names that are organized hierarchically under core data components (person, property, organization, etc.) with hyperlinks to related elements.
A database generally stores its schema in a data dictionary. Although a schema is defined in text database language, the term is often used to refer to a graphical depiction of the database structure. In other words, schema is the structure of the database that defines the objects in the database.
In metadata, a data element definition is a human readable phrase or sentence associated with a data element within a data dictionary that describes the meaning or semantics of a data element. Data element definitions are critical for external users of any data system.
Without a data dictionary, however, a database management system cannot access data from the database. [16] Database users and application developers can benefit from an authoritative data dictionary document that catalogs the organization, contents, and conventions of one or more databases. [17]
Metadata is often defined as data about data. [2] [3] [4] It is “structured information that describes, explains, locates, or otherwise makes it easier to retrieve, use or manage an information resource”, especially in a distributed network environment like for example the internet or an organization. [5]
The PREMIS data model consists of four interrelated entities: Object (divided into three subtypes) Event; Agent; Rights; With each semantic unit in the data dictionary categorized in one of these areas. [11] An Intellectual Object entity is a type of Object. It is a set of content that constitutes a discrete, coherent intellectual unit, such as ...