A metadataregistry is a central location in an organization where metadata definitions are stored and maintained in a controlled method. Use of Metadata Registries Metadata registries are used whenever ... have been reviewed and approved by appropriate parties. Common characteristics of a metadataregistry A metadataregistry typically has the following characteristics Protected environment where ... class representations Semantic areas of a metadataregistry contain the meaning of a data element with precise definitions Representational areas of a metadataregistry define how the data ... ebXML.html ebXML registry and repository regrep EbXML RegRep Metadataregistry roles A metadataregistry ... registry system. Metadata publishing consists of making data element definitions and structures ... Minnesota Department of Education MetadataRegistry K 12 Data http education.state.mn.us mde dd Minnesota ... 9080 US Department of Defense MetadataRegistry requires sponsored registration http metadata.dod.mil US Environmental Protection Agency Environmental Data Registry http www.epa.gov edr Metadataregistry ... www.datafoundations.com solutions data registries.shtml Data Foundations MetadataRegistry http www.infolibcorp.com ... metadataregistry http www.masaitechnologies.com Masai Technologies M GRID http www.octagonresearch.com ... 2007.htm The Society of Motion Picture and Television Engineers Metadata Dictionary Registry of Metadata Element Descriptions http ebxmlrr.sourceforge.net freebXML Registry, A royalty free open ... Meta Object Facility MOF Metadata METeOR Metadata Online Registry METeOR Metadata publishing ... Views Transformation QVT Simple MetadataRegistry VIATRA VIsual Automated model TRAnsformation ... Metadataregistry Category ISO IEC 11179 fr Registre de m tadonn es zh ... applications or proprietary file formats Central to the charter of any metadata management programme ... Clear separation of semantics and system specific constraints Because metadata registries are used ... more details
Unreferenced date December 2009 Orphan date February 2009 Confusing date March 2007 In metadata the Simple MetadataRegistry SMDR is a simplified version of the ISO IEC 11179 metadataregistry specification. SMDR uses a REST interface to create a unique URI for each data element in a metadataregistry. Philosophy behind SMDR SMDR was inspired by the simplification movement as demonstrated by applications such as Ruby on Rails and Representational State Transfer REST where default values take precedence over configuration. SMDR uses standardized URL and file naming conventions to allow for direct URL mapping of data element s and enumerations. Structure of SMDR In SMDR, a data element is one of one of three types Conceptual Data Element A concept or thing used to group properties together. This similar to an Object in Object Oriented Programming . Concepts can have zero or more sub concepts but only one superclass. Property Data Element A leaf level data element with a known representation term . This is similar to an Object attribute but without behavior. Representation terms do not necessarily dictate how a data element should be stored in a computer system, but rather the semantic classification of the type of data. Relationship A property that relates two data elements together. SMDR is designed to be simple enough for most data modelers to quickly comprehend but sophisticated enough for most applications. SMDR is designed to be implemented using simple readily available software. The base SMDR system could be implemented in MySQL with two base tables DataElements and Enumerations . File system and URL example Assume a simple structure such as Thing Activity CourseEnrollment Document ReportCard Organization School SchoolDistrict Person PersonBirthDate Student StateAssignedID ... data element PersonBirthDate This returns a list of all the representation terms used in this registry ... database or a flat file. Category Metadata ... more details
, Taxonomy taxonomies , thesauri , Data Dictionary data dictionaries and Metadataregistry ..., Statistics Canada, and many others are described. Emphasis is on the impact a metadataregistry ... registry METAFOR Common Metadata for Climate Modelling Digital Repositories Mercury Metadata ...For the page on metadata about Wikipedia Wikipedia Metadata Expert subject multiple Libraries Computing date March 2010 pp move indef small yes The term Metadata is an ambiguous term which is used for two fundamentally different concepts Metadata types Types . Although an expression data about data is often used, it does not apply to both in the same way. Structural metadata, the design and specification ... metadata on the other hand, is about individual instances of application data, the data content. In this case ... concept of administrative metadata are all subtypes of metacontent. Metadata metacontent is traditionally .... For example, a webpage may include metadata specifying what language it s written in, what ... improve the experience of users. Definition Metadata metacontent is defined as data providing ... was created Technical standard Standards used For example, a digital image may include metadata ..., and other data. A text document s 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 is data. As such, metadata can be stored and managed in a database , often called a registry or repository. However, it is impossible to identify metadata just by looking at it because a user would not know when data is metadata or just data. ref http www.bls.gov ore pdf st000010.pdf METADATA STANDARDS AND METADATA REGISTRIES AN OVERVIEW ref Libraries Metadata has been used in various forms ... of library materials is an early example of metadata usage. Library catalogues used ... a particular book. Another form of older metadata collection is the use by US Census Bureau of what ... more details
Wiktionary registry For an official keeper of records or a place where records are kept, see Registrar . For a record in writing or the act of registering, see Register . Registry may refer to Computing Windows Registry , a database of configuration settings in Microsoft Windows operating systems Domain name registry , an organization that manages the registration of top level internet domain names Metadataregistry , information system for registering metadata ref ISO IEC 11179 1 2004, 3.2.19 ref Regional Internet registry , an organization overseeing the allocation of Internet number resources in a particular region of the world National Internet registry Local Internet registry Gifts Bridal registry , a retailers plan that allows engaged couples to manage the purchase of wedding gifts Honeymoon registry , a service that assists engaged and married couples in financing their honeymoons Government and law Civil registry , a government record of vital events for example, births, deaths and marriages Land registry , an official record of land ownership Registry of Motor Vehicles , a government agency that administers the registration of automobiles Sex offender registry , a system to allow government authorities to keep track of sex offenders The Registry , a risk management tool used by landlords to screen prospective renters Registered mail Registry fee is a postal fee paid to send registered mail. Health and medicine Cancer registry , a systematic collection of data about cancer and tumor diseases NREMT National Registry of Emergency Medical Technicians , which establishes ... Nurse registry , a licensed staffing agency that provides hospitals and individuals with nursing personnel Other uses Breed registry , a record of the ancestry and ownership of purebred animals Survivor registry , a website where people in an area affected by a terrorist attack can post a message saying they are okay Family register Family registry , a registry used in many countries ... more details
In House housing , The Registry is a risk management tool used by landlord s as a screening mechanism for prospective renters. The term is most commonly used as a form of synecdoche to refer to a handful of the most common registry systems in the United States, The New American Registry , The First American Registry , The Registry Saferent , and The U.D. Registry . Mechanism Each registry automatically receives a notification from various metropolitan housing court s whenever any tenant is sued by a landlord. In areas without housing courts, lists of named defendants in unlawful detainer eviction suits will be compiled from court records. Usually there is a period of time before those records become public, and if the suit is resolved before that, the names will not be listed. Even if the tenant successfully defends themselves, they are kept in the registries. In addition, there are procedures by which landlords can report tenants who skip or are habitually late paying rent. Almost all landlords subscribe to these major registry services and screen potential applicants many landlords will reject tenants on the basis of their presence in the registry, because the best indicator of future behavior is past behavior. Criticism Several class action lawsuits have been brought against individual registries in the names of tenants who have won their cases in housing court but remain blacklisted. Most of these cases are settled out of court. In addition to the registries, many complain of the various housing courts complicit involvement, by providing the names of the defendants through an automated service. This is an often unspoken source of revenue for these departments, as they generally charge 0.05 per listing. External links California U.D. Registry and how listed tenants can protect their rights and fight back http www.caltenantlaw.com credit.htm Class action suit brought in New York against First American Regisrtry http query.nytimes.com gst fullpage.html?res 9D07E0DD113CF934A15751C0A9629C8B63 ... more details
Multiple issues unreferenced December 2009 orphan December 2009 In metadata an indicator is a Boolean logic Boolean value that may contain only the values true or false . The definition of an Indicator must include the meaning of a true value and should also include the meaning if the value is false. If a data element may take another value to represent e.g. unknown or not applicable , then a Code should be used instead of an Indicator, and the meanings of all possible values should be clearly defined. The suffix Indicator is used in ISO IEC 11179 metadataregistry standard as a representation term . Example of Use of Indicator in XML An example use of the Indicator suffix is if an XML document was required to contain the passing status of a Student in a statewide assessment. The data element would be tt nowiki StudentPassedAssessmentIndicator true StudentPassedAssessmentIndicator nowiki tt Standards that use the indicator representation term The following metadataregistry standards use the term indicator ebXML NIEM GJXDM See also Metadata ISO IEC 11179 Representation term Code DEFAULTSORT Indicator Metadata Category Metadata Category Representation term ... more details
classified as a code. If only two code values are needed, an indicator metadata indicator Boolean true false representation term can be used. See also MetadataMetadataregistry ISO IEC 11179 Data element Identifier metadata Indicator metadata Representation term Representation class Federal Information Processing Standard DEFAULTSORT Code Metadata Category Metadata Category Representation term Category Metadataregistry Category ISO IEC 11179 Category Statistical data coding ...Unreferenced date December 2009 In metadata , the representation term code refers to, and is used in the name of, data element s whose allowable values can be represented as enumerated lists. Each enumerated value is a string that for brevity represents a specific meaning. For example, for a PersonGenderCode the allowable code valid values might be male , female or unknown . To be compliant with ISO standards a value meaning or definition must also be associated with each code. The ISO IEC 11179 metadataregistry standard defines code as a system of valid symbols that substitute for longer values. In general, if the number of codes is small the list of valid codes and their definitions can be transmitted with a document that validates the data. Codes usually have a symbolic meaning that can be understood by a person. One example code is a set of two letter state code s used in a US postal address. The code MN represents the state of Minnesota. Its equivalent Identifier metadata ID using FIPS state code FIPS standards is the number 27 . The number 27 would be classified as having a representation term of type Identifier metadata Identifier and have the representation suffix of ID . Another example is the IATA airport code three letter international airport codes such as MSP for the Minneapolis St. Paul Airport. Although people use these codes to identify an airport, they would be classified as having a representation term of Code because they contain mnemonic information. Sometimes ... more details
and a data element in a metadataregistry also has the name PersonBirthDate , automated ... in the metadataregistry. Synonym match where the discovery tool in not just given a single name but a set ...In metadata , metadata discovery is the process of using automated tools to discover the semantics of a data element in data sets. This process usually ends with a set of mappings between the data source elements and a centralized metadataregistry . Metadata discovery is also known as metadata scanning. Data source formats for metadata discovery Data sets may be in a variety of different forms including Relational database s Spreadsheet s XML files Web services Software source code such as Fortran, Jovial, COBOL, Assembler, RPG, PL 1, EasyTrieve, Java, C or C classes, and hundreds of other software languages Unstructured text documents such as Microsoft Word or PDF files A taxonomy of metadata matching algorithms There are distinct categories of automated metadata discovery Lexical Matching Exact match where data element linkages are made based on the exact name of a column in a database ... could be inferred. Vendors The following vendors listed in alphabetical order provide metadata discovery and metadata mapping software and solutions Esquire Innovations see http www.esqinc.com ... Mercury A Distributed Metadata Management and Data Discovery System developed at the Oak Ridge National Laboratory DAAC see http mercury.ornl.gov ref citation title Mercury reusable metadata management ... DOI 10.1007 s12145 010 0050 7 ref See also metadata data mapping data warehouse semantic web Defense Discovery Metadata Specification References references http www.sdsc.edu MDAS Reports MDAS.Final.SciTech ... v0.12.pdf IBM Whitepaper on Enterprise Metadata Discovery http esqinc.com Content WhitePapers Managing Metadata.php White Paper on Metadata Management by http esqinc.com Esquire Innovations Category Metadata ... more details
technology Metadataregistry ISO IEC 11179 Topic Maps External links http ambientwebs.com MetaQuery ...Metadata publishing is the process of making metadata data element s available to external users, both people and machines using a formal review process and a commitment to change control processes. Metadata .... But like building foundations, care must be taken in metadata publishing systems to ensure the structural integrity of the systems built on top of them. Definition of metadata publishing Published metadata has the following characteristics Metadata structures available to the general public on a public ... A publishing organization that makes a commitment to change control process Benefits of metadata publishing When classifying benefits of metadata publishing two groups are usually considered. External ... of model driven architecture Objections to metadata publishing Organizations that publish their metadata ... s firewall Vendors that publish their metadata risk customers creating tools that could allow ... off of a vendor s system Core process in metadata publishing The following are some of the core processes in metadata publishing Gathering of metadata requirements Selection of metadataregistry and metadata publishing tools Training of metadata concepts to project participants Stakeholder group formation Metadata harvesting Glossary consolidation Initial upper ontology construction abstract data elements Draft data element loading Data element review process Publishing approved metadata elements ... or redundant data elements File format metadata publishing Organizations that create applications that store data in file systems can also publish metadata definitions. One common way to perform ... tool. Metadata publishing formats HTML used for browsing a web site and indexing by text based search engines Web Ontology Language OWL used by metadata search engines such as Swoogle XML Metadata Interchange XMI Object Management Group OMG standard for exchanging metadata Common Warehouse Metamodel ... more details
literal underscore should be a double underscore Example LIKE G ESCAPE Oracle MetadataRegistry The Oracle product Oracle Enterprise Metadata Manager EMM is an ISO IEC 11179 compatible metadataregistry . It stores administered metadata in a consistent format that can be used for metadata publishing . In January 2006, EMM was available only through Oracle consulting services. See also metadata External ... show only the objects owned by the current user i.e. a more restricted view of metadata and prefixed DBA which show all objects in the database i.e. an unrestricted global view of metadata for the database instance . Naturally the access to DBA metadata views requires specific privileges. Example 1 ... Metadata Category Metadata Category Oracle Corporation Category Articles with example SQL code compu ... more details
that describes the metadata and activities needed to manage data elements in a registry to create ... Metadataregistry Notes references References Baca, M. ed 2002 , Metadata Standards, Library Technology ... 2003 , Information Technology Metadata Registries MDR Part 3 Registry metamodel and basic attributes ...Refimprove date March 2011 Metadata standards are requirements which are intended to establish a common ..., or attributes of the data have to be defined, also known as metadata ISO IEC, 2003 . MetadataMetadata is often defined as data about data e.g., NISO, 2004 Duval 2001, Cabinet Office, 2006 ... example of metadata is the cataloguing system found in libraries , which records for example the author, title, subject, and location on the shelf of a resource. Metadata is usually categorized in three types Lambe, 2007 NISO, 2004 NISO, 2007 Descriptive metadata describes an information resource ... metadata documents relationships within and among objects through elements such as links to other components e.g., how pages are put together to form chapters . Administrative metadata helps to manage ... information for purposes of file management, rights management and preservation. Available metadata standards Metadata elements grouped into sets designed for a specific purpose, e.g., for a specific domain or a particular type of information resource, are called metadata schemes. For every element ... Generalized Mark up Language SGML or XML to specify their syntax NISO, 2004 . Metadata schemes ... taken on such responsibility such as the Dublin Core Metadata Initiative are called metadata standards. Many different metadata schemes are being developed as standards across disciplines, such as library ... metadata standards is given. class wikitable border 1 Name Focus Description http www.ddialliance.org ... them. http rs.tdwg.org dwc index.htm Darwin Core Biology The Darwin Core is a metadata specification ... easy interchange of warehouse and business intelligence metadata in distributed heterogeneous ... more details
Primary sources date November 2009 Metadata is the name of a United States US corporation and a registered trademark in the United States. Though the term metadata has a common generic use in information technology , claims of trademark have since brought about legal threats against its use in the generic sense. History The word Metadata was registered in 1986 as a trademark U.S. Trademark Registration No. 1,409,206 belonging to The Metadata Company. Citation needed date August 2009 The trademark was granted incontestable status in 1991. Metadata is a proprietary mark which stands for The Metadata Company. The Metadata Company has since attempted to threaten people legally into not using the word metadata in the generic sense. Many people believe that due to the widespread use of the word metadata in the generic sense as data about data , it is likely that the Metadata trademark has genericised trademark entered the public domain by becoming a general term . This was the legal opinion expressed by the Office of the Solicitor of the United States Department of the Interior to the Federal Geographic Data Committee when the latter was threatened by Metadata s lawyers for its use of the word metadata in a generic sense. However, no judge has as yet ruled the trademark invalid. External links http www.metadata.com The Metadata Company References reflist Category Companies based in Tennessee Metadata Company ... more details
Unreferenced date December 2009 Under some metadata standards, time is a representation term used to specify a time of day in the in ISO 8601 Times ISO 8601 time format. Note that Time should not be confused with the DateAndTime representation term which requires that both the date and time to be supplied. Metadata registries that use the time representation term NIEM ebXML GJXDM See also metadata ISO IEC 11179 Representation term ISO 8601 Time measurement and standards DEFAULTSORT Time Metadata Category Metadata Category Representation term ... more details
Unreferenced date December 2009 Mergeto Identifier date January 2009 In metadata , an identifier is a language independent label, sign or token that uniquely identifies an object within an identification scheme . The suffix identifier is also used as a representation term when naming a data element . See also Metadata Data element Identifier Representation term DEFAULTSORT Identifier Metadata Category Metadata ... more details
Geospatial metadata also geographic metadata , or simply metadata when used in a geographic context is a type of metadata that is applicable to objects that have an explicit or implicit Geography geographic ... features may be appropriate to describe in a geographic metadata catalogue may also be known as a data directory, data inventory, etc. . Definition ISO 19115 Geographic Information Metadata ref ISO 19115 Geographic Information Metadata. International Organization for Standardization ISO , Geneva, 2003 ref from ISO TC 211 , the current best practice standard for geospatial metadata, does not in fact provide a definition of geospatial or geographic metadata however, uses the following wording ... describes geospatial metadata as follows A metadata record is a file of information, usually .... It represents the who, what, when, where, why and how of the resource. Geospatial metadata are used ... databases, and earth imagery. A geospatial metadata record includes core library catalog elements ... Values. ref http www.fgdc.gov metadata Geospatial Metadata on FGDC website, visited 16 October 2006 ref History The growing appreciation of the value of geospatial metadata through the 1980s and 1990s led to the development of a number of initiatives to collect metadata according to a variety of formats ..., NASA s DIF metadata format was developed during an Earth Science and Applications Data Systems ... in 1988. Similarly, the U.S. FGDC developed its geospatial metadata standard over the period 1992 1994. ref http libraries.mit.edu guides subjects metadata standards fgdc.html MIT Libraries Guide Federal Geographic Data Committee FGDC Metadata . On MIT Libraries website, visited 16 October 2006 ... version 1 of its metadata guidelines in 1996. ref http www.anzlic.org.au get 2358011755 ANZLIC Metadata Guidelines Core metadata elements for geographic data in Australia and New Zealand, Version ... Information Metadata in 2003. Individual countries, communities of practice, agencies, etc. are currently ... more details
Unreferenced date December 2009 Notability date April 2008 In metadata , year is a representation term used to specify a year in the Gregorian calendar systems. Example in XML If a vehicle has a model year the XML data element may be VehicleModelYear 2006 VehicleModelYear In the above example the Vehicle is the object, the Model is the property and Year is the representation term. Note that Year should not be confused with the Date metadata Date representation term which requires that the month and the day also be supplied. The representation term is used for semantic identification of a data element s and does not dictate if the data type used in a database should use a string or an integer structure. This is implementtion dependent. Metadata registries that use the time representation term NIEM ebXML GJXDM See also metadata ISO IEC 11179 Representation term ISO 8601 DEFAULTSORT Year Metadata Category Metadata Category Representation term ... more details
Unreferenced stub auto yes date February 2009 In metadata a Binary Object is a representation term used to describe a set of finite length sequences of binary octets used to represent sound, images and other structures. Comp sci stub Category Metadata ... more details
Preservation metadata is an essential component of most digital preservation strategies. As an increasing ... to develop new strategies to preserve this information for the long term. Preservation metadata is information that supports and documents the digital preservation process. Preservation metadata is sometimes considered a subset of technical or administrative metadata. Preservation metadata stores ... Information , National Library of Australia . Retrieved April 14, 2008. ref Preservation metadata ... of the object. ref Woodyard, D., Metadata and preservation. Information Services and Use , 22 121 125, 2002. ref Preservation metadata often includes the following information Provenance Who has ... Metadata Maintenance Activity . Retrieved April 12, 2008 ref Digital materials require constant ..., digital objects need preservation metadata that can exist independently from the systems which were used to create them. Without preservation metadata, digital material will be lost. While a print ... Lib Magazine , 10 7 8 , 2004. Retrieved April 1, 2008. ref Preservation metadata provides the vital ... metadata is a new and developing field. The Reference Model for an Open Archival Information System ... metadata element sets. ref http nost.gsfc.nasa.gov isoas ref model.html Reference model for an Open Archival Information System OAIS , NASA , USA. ref Early projects in preservation metadata in the library ... Group on Preservation Metadata. ref name PADI Following on from this work, the Preservation Metadata Implementation Strategies PREMIS Working Group created the Data Dictionary for Preservation Metadata ... research projects pmwg OCLC RLG PREMIS PREservation Metadata Implementation Strategies , http www.oclc.org ... of Congress. ref name LOC See also Digital preservation Preservation Metadata Implementation Strategies PREMIS Metadata Digital library References reflist External links http www.leeds.ac.uk cedars MD STR 5.pdf CEDARS 2000 Metadata for Digital Preservation The CEDARS Project Outline Specification http ... more details
Unreferenced date December 2009 In metadata , the term date is a representation term used to specify a calendar date in the Gregorian calendar . Many data representation standards such as XML , XML Schema W3C XML Schema , Web Ontology Language specify that ISO date format ISO 8601 should be used. Note that Date should not be confused with the DateAndTime representation term which requires that both the date and time to be supplied. Metadata registries that use the date representation term NIEM ebXML GJXDM See also metadata ISO IEC 11179 Representation term ISO 8601 Time measurement and standards DEFAULTSORT Date Metadata Category Metadata Category Representation term Compu storage stub fr Date m tadonn e ... more details
.NET metadata , in the Microsoft .NET framework, refers to certain data structures embedded within the Common Intermediate Language code that describes the high level structure of the code. Metadata describes ... assembly. The metadata for a method contains the complete description of the method, including the class ... science parameter s. A .NET language compiler will generate the metadata and store this in the .NET ... Runtime CLR executes CIL it will check to make sure that the metadata of the called method is the same as the metadata that is stored in the calling method. This ensures that a method can only be called ... can add metadata to their code through attributes . There are two types of attributes, custom ... . Attributes in code are messages to the compiler to generate metadata. In CIL, metadata such as inheritance ... custom metadata that is not recognised by the CLR. The developer has to provide code to read the metadata ..., as it has adequate syntax to describe the metadata. Clarify me date March 2008 What the hell does this mean ... attribute is metadata that public class MyClass ... Metadata storage Assemblies contain tables of metadata. These tables are described by the CIL specification. The metadata tables will have zero or more entries and the position of an entry determines its index. When CIL code uses metadata it does so through a metadata token. This is a 32 bit value where the top 8 bits identify the appropriate metadata table, and the remaining 24 bits give the index of the metadata in the table. The Framework SDK contains a sample called metainfo that will list the metadata tables in an assembly, however, this information is rarely of use to a developer. Metadata in an assembly may be viewed using the ILDASM ... computer science Reflection is the Application programming interface API used to read .NET metadata. The reflection API provides a logical view of metadata rather than the literal view provided .... Other metadata tools Besides the System.Reflection namespace, other tools are also available that can ... more details
Unreferenced date December 2009 In metadata , dimension is a set of equivalent units of measure, where equivalence between two units of measure is determined by the existence of a quantity preserving one to one correspondence between values measured in one unit of measure and values measured in the other unit of measure, independent of context, and where characterizing operations are the same. The equivalence defined here forms an equivalence relation on the set of all units of measure. Each equivalence class corresponds to a dimensionality. The units of measure temperature in degrees Fahrenheit and temperature in degrees Celsius have the same dimensionality, because given a value measured in degrees Fahrenheit there is a value measured in degrees Celsius with the same quantity, and vice versa. Quantity preserving one to one correspondences are the well known equations C 5 9 F &minus 32 and F 9 5 C 32. Units of measure are not limited to physical categories. Examples of physical categories are linear measure, area, volume, mass, velocity, time duration. Examples of non physical categories are currency, quality indicator, colour intensity Quantities may be grouped together into categories of quantities which are mutually comparable. Lengths, diameters, distances, heights, wavelengths and so on would constitute such a category. Mutually comparable quantities have the same dimensionality. ISO 31 0 calls these quantities of the same kind . See also Metadata Representation class DEFAULTSORT Dimension Metadata Category Metadata ... more details
Metadata controller or MDC is a storage area network SAN technology for managing file locking, space allocation and data access authorization. This is needed when several clients are given block level access to the same disk volume. The abstract for the patent describing this technology can be read http www.freepatentsonline.com 7448077.html here Category Data management Category Telecommunications engineering Category Computer storage Category Local area networks compu storage stub ... more details
of their pictures, constructing flexible and easy metadata that made the pictures highly searchable ... Classification and Communication Through Shared Metadata by Adam Mathes, December 2004. It focuses ... 24, 2007. ref Specialized metadata for geographical identification is known as geotagging machine tags ... People Powered Metadata for the Social Web. Berkeley, CA New Riders. ISBN 0 321 52917 0 ref The flexibility ... vocabulary , the resulting metadata can include homonym s the same tags used with different meanings ... urn.html A Uniform Resource Name URN Namespace for Tag Metadata . Tim Bray. Internet draft, expires August 5, 2007. Web syndication Category Computer jargon Category Web 2.0 Category Metadata Category ... nl Tag metadata ja pl Tag znacznik pt Tag metadata sv Taggning uk vi ... more details
Metadata modeling is a type of metamodeling used in software engineering and systems engineering for the analysis and construction of models applicable and useful some predefined class of problems. Meta modeling is the analysis, construction and development of the frames, rules, constraints, models and theories applicable and useful for the modeling in a predefined class of problems. The meta data side of the diagram consists of a concept diagram. This is basically an adjusted class diagram as described in Booch, Rumbaugh and Jacobson 1999 . Important notions are concept, generalization, association, multiplicity and aggregation. Metadatamodeling Concepts Image Mm31.gif thumb Fig.1 STANDARD, OPEN and CLOSED CONCEPTS Image Mm32.gif thumb Fig.2 Example of STANDARD, OPEN and CLOSED CONCEPTS First of all, a concept is a simple version of a UML class. The class definition ref Booch, Rumbaugh and Jacobson 1999 ref is adopted to define a concept, namely a set of objects that share the same attributes, operations, relations, and semantics. The following concept types are specified STANDARD CONCEPT a concept that contains no further sub concepts. A standard concept is visualized with a rectangle. COMPLEX CONCEPT a concept that consists of a collection of sub concepts. Complex concepts are divided into OPEN CONCEPT a complex concept whose sub concepts are expanded. An open concept is visualized with two white rectangles above each other. CLOSED CONCEPT a complex concept whose sub concepts are not expanded since it is not relevant in the specific context. A closed concept is visualized by a white rectangle above a black rectangle. In Figure 1 the three concept types that are used in the modeling technique are illustrated. Concepts are always capitalized, not only in the diagram, but also when referring to them outside the diagram. In Figure 2 all three concept types are exemplified ... of CONCEPT B See also MetadataMetadata standards Metamodeling UML References reflist Further reading ... more details
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