Metadata Wikipedia. In the 2. 01. 0s, metadata typically refers to digital forms however, even traditional card catalogues from the 1. P Cad 2006 Libraries' title='P Cad 2006 Libraries' />Metadata is data information that provides information about other data. Three distinct types of metadata exist descriptive metadata, structural metadata, and administrative metadata. Descriptive metadata describes a resource for purposes such as discovery and identification. It can include elements such as title, abstract, author, and keywords. Structural metadata is metadata about containers of data and indicates how compound objects are put together, for example, how pages are ordered to form chapters. It describes the types, versions, relationships and other characteristics of digital materials. Administrative metadata provides information to help manage a resource, such as when and how it was created, file type and other technical information, and who can access it. HistoryeditMetadata was traditionally used in the card catalogs of libraries until the 1. In the 2. 00. 0s, as digital formats were becoming the prevalent way of storing data and information, metadata was also used to describe digital data using metadata standards. There are different metadata standards for each different discipline e. Describing the contents and context of data or data files increases its usefulness. For example, a web page may include metadata specifying what software language the page is written in e. HTML, what tools were used to create it, what subjects the page is about, and where to find more information about the subject. Save time and money These mutlidiscipline block libraries contain professionally drawn symbols that will speed up your production with AutoCAD and AutoCAD LT. CAD Studio file download utilities, patches, goodies, addons, freeware. Get files for your AutoCAD, Inventor, Revit, Civil 3D, Fusion 360 and 3ds Max. This metadata can automatically improve the readers experience and make it easier for users to find the web page online. A CD may include metadata providing information about the musicians, singers and songwriters whose work appears on the disc. A principal purpose of metadata is to help users find relevant information and discover resources. Metadata also helps to organize electronic resources, provide digital identification, and support the archiving and preservation of resources. Metadata assists users in resource discovery by allowing resources to be found by relevant criteria, identifying resources, bringing similar resources together, distinguishing dissimilar resources, and giving location information. Metadata of telecommunication activities including Internet traffic is very widely collected by various national governmental organizations. This data is used for the purposes of traffic analysis and can be used for mass surveillance. In many countries, the metadata relating to emails, telephone calls, web pages, video traffic, IP connections and cell phone locations are routinely stored by government organizations. DefinitioneditMetadata means data about data. Although the meta prefix from the Greek preposition and prefix means after or beyond, it is used to mean about in epistemology. 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 which can make tracking and working with specific data easier. Some examples include Means of creation of the data. Purpose of the data. Time and date of creation. Creator or author of the data. Location on a computer network where the data was created. Standards used. File size. For example, a digital image may include metadata that describes how large the picture is, the color depth, the image resolution, when the image was created, the shutter speed, and other data. A text documents metadata may contain information about how long the document is, who the author is, when the document was written, and a short summary of the document. Metadata within web pages can also contain descriptions of page content, as well as key words linked to the content. These links are often called Metatags, which were used as the primary factor in determining order for a web search until the late 1. The reliance of metatags in web searches was decreased in the late 1. P Cad 2006 Libraries' title='P Cad 2006 Libraries' />Metatags were being largely misused to trick search engines into thinking some websites had more relevance in the search than they really did. Metadata can be stored and managed in a database, often called a metadata registry or metadata repository. P Cad 2006 Libraries' title='P Cad 2006 Libraries' />History. Metadata was traditionally used in the card catalogs of libraries until the 1980s, when libraries converted their catalog data to digital databases. One Response to The Diagonal Earlobe Crease Historical Trivia or a Useful Sign of Coronary Artery Disease CAD Forum CADBIM Library of free blocks free title block free CAD blocks and symbols DWGRFAIPT, 3D2D by CAD Studio. Clari3D is a crossplatform 3D viewer for CAD files with WebGL export for STL, WaveFront, 3DStudio, Cloud of Points, Step and other. P Cad 2006 Libraries' title='P Cad 2006 Libraries' />However, without context and a point of reference, it might be impossible to identify metadata just by looking at it. For example by itself, a database containing several numbers, all 1. But if given the context that this database is a log of a book collection, those 1. ISBNs information that refers to the book, but is not itself the information within the book. The term metadata was coined in 1. Philip Bagley, in his book Extension of Programming Language Concepts where it is clear that he uses the term in the ISO 1. Since then the fields of information management, information science, information technology, librarianship, and GIS have widely adopted the term. In these fields the word metadata is defined as data about data. While this is the generally accepted definition, various disciplines have adopted their own more specific explanation and uses of the term. While the metadata application is manifold, covering a large variety of fields, there are specialized and well accepted models to specify types of metadata. Bretherton Singley 1. Structural metadata describes the structure of database objects such as tables, columns, keys and indexes. Guide metadata helps humans find specific items and are usually expressed as a set of keywords in a natural language. According to Ralph Kimball metadata can be divided into 2 similar categories technical metadata and business metadata. Technical metadata corresponds to internal metadata, and business metadata corresponds to external metadata. Kimball adds a third category, process metadata. On the other hand, NISO distinguishes among three types of metadata descriptive, structural, and administrative. Descriptive metadata is typically used for discovery and identification, as information to search and locate an object, such as title, author, subjects, keywords, publisher. Structural metadata describes how the components of an object are organized. An example of structural metadata would be how pages are ordered to form chapters of a book. Finally, administrative metadata gives information to help manage the source. Administrative metadata refers to the technical information, including file type, or when and how the file was created. Phone Torch Nokia N95. Two sub types of administrative metadata are rights management metadata and preservation metadata. Rights management metadata explains intellectual property rights, while preservation metadata contains information to preserve and save a resource. An additional type of metadata beginning to be more developed is accessibility metadata. Accessibility metadata is not a new concept to libraries however, advances in universal design have raised its profile. Projects like Cloud. All and GPII identified the lack of common terminologies and models to describe the needs and preferences of users and information that fits those needs as a major gap in providing universal access solutions. Those types of information are accessibility metadata. Schema. org has incorporated several accessibility properties based on IMS Global Access for All Information Model Data Element Specification. The Wiki page Web. SchemasAccessibility lists several properties and their values.