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Data Catalog Vocabulary (DCAT) is an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web.By using DCAT to describe datasets in catalogs, publishers increase discoverability and enable applications to consume metadata from multiple catalogs.
Metadata means "data about data". Metadata is defined as the data providing information about one or more aspects of the data; it is used to summarize basic information about data that can make tracking and working with specific data easier. [15]
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 ...
A good example of metadata is the cataloging system found in libraries, which records for example the author, title, subject, and location on the shelf of a resource. Another is software system knowledge extraction of software objects such as data flows, control flows, call maps, architectures, business rules, business terms, and database schemas.
Linnaean taxonomy, a metadata system used historically for grouping animals in zoos, first published in 1735 Card catalog and digital media access point. Metadata management involves managing metadata about other data, whereby this "other data" is generally referred to as content data.
Nirvana was virtual object storage software developed and maintained by General Atomics.. It can also be described as metadata, data placement and data management software that lets organizations manage unstructured data on multiple storage devices located anywhere in the world in order to orchestrate global data intensive workflows, and search for and locate data no matter where it is located ...
The records are in XML according to the standard. Typically the records include Dublin Core, ISO 19139 or FGDC metadata, encoded in UTF-8 characters. Each record must contain certain core fields including: Title, Format, Type (e.g. Dataset, DatasetCollection or Service), BoundingBox (a rectangle of interest, expressed in latitude and longitude ...
ResCarta Toolkit is an open source software package used to create open access repositories for local history and published digital content. ResCarta Toolkit focuses on the use of open standard file formats and metadata standards to create archives that are sustainable over time.