Search: in
Schema
Schema in Encyclopedia Encyclopedia
  Tutorials     Encyclopedia     Videos     Books     Software     DVDs  
       
Encyclopedia results for Schema

Schema





Encyclopedia results for Schema

  1. RDF Schema

    primary sources date September 2011 Infobox W3C Standard title RDF Schema status Published year started 1998 editors Dan Brickley , Ramanathan V. Guha base standards Resource Description Framework RDF related standards Web Ontology Language OWL abbreviation RDFS domain Semantic Web website http www.w3.org TR rdf schema RDF Schema RDF Schema variously abbreviated as RDFS , RDF S , RDF S , or RDF S is a set of classes with certain properties using the Resource Description Framework RDF extensible knowledge representation language, providing basic elements for the description of ontology computer science ontologies , otherwise called RDF vocabularies, intended to structure RDF resource Web resources . These resources can be saved in a triplestore to reach them with the query language SPARQL . The first version ref http www.w3.org TR 1998 WD rdf schema 19980409 RDFS first version ref ref cite web url http www.dblab.ntua.gr bikakis XML 20and 20Semantic 20Web 20W3C 20Standards 20Timeline History.pdf title XML and Semantic Web W3C Standards Timeline date 2012 02 04 ref was published by the World Wide Web Consortium W3C in April 1998, and the final ref http www.w3.org TR rdf schema Final W3C recommendation ref W3C recommendation was released in February 2004. Many RDFS components are included in the more expressive language Web Ontology Language OWL . Main RDFS constructs RDFS constructs are the RDFS classes, associated properties and utility properties built on the limited Resource Description Framework RDF Vocabulary vocabulary of RDF . Classes rdfs Resource is the class of everything ... www.w3.org 2000 01 rdf schema . prefix ex http example.org . prefix zoo http example.org zoo . ex dog1 ... External links http www.w3.org TR rdf schema W3C RDFS Specification http www.w3.org TR REC rdf ... Semantic Web W3C Standards DEFAULTSORT Rdf Schema Category Resource Description Framework Category ... de RDF Schema es RDF Schema fr RDF Schema pl RDF Schema ...   more details



  1. SCHEMA (bioinformatics)

    SCHEMA is a computational algorithm used in protein engineering to identify fragments of proteins called schemas that can be Homologous recombination Protein engineering recombined without disturbing the integrity of the proteins tertiary structure three dimensional structure . ref cite journal title Protein building blocks preserved by recombination last Voigt first CA et al journal Nature Structural Biology year 2002 month June volume 9 pages 553 558 doi 10.1038 nsb805 pmid 12042875 last2 Martinez first2 C last3 Wang first3 ZG last4 Mayo first4 SL last5 Arnold first5 FH issue 7 ref The algorithm calculates the protein protein interaction interactions between a protein s different amino acid residues to determine which interactions may be disrupted by swapping structural Protein domain domains of the protein. By minimizing these disruptions, SCHEMA can be used to engineer Chimera protein chimeric proteins that stably Protein folding fold and may have altered function relative to their parent proteins. ref cite journal title Structure guided recombination creates an artificial family of cytochromes P450 last Otey first CR journal PLoS Biology year 2006 month May volume 4 issue 5 page e112 doi 10.1371 journal.pbio.0040112 pmid 16594730 pmc 1431580 last2 Landwehr first2 M last3 Endelman first3 JB last4 Hiraga first4 K last5 Bloom first5 JD last6 Arnold first6 FH ref References reflist Category Bioinformatics ...   more details



  1. Schema crosswalk

    A crosswalk is a table that shows equivalent elements or fields in more than one database schema . It maps the elements in one schema to the equivalent elements in another schema. For example, this is a metadata crosswalk from MARC standards MARC to Dublin Core center class wikitable MARC field Dublin Core element 260 c Date of publication, distribution, etc. Date.Created 522 Geographic Coverage Note Coverage.Spatial 300 a Physical Description Format.Extent center Crosswalks show people where to put the data from one scheme into a different scheme. They are often used by libraries, archives, museums, and other cultural institutions to translate data to or from MARC standards MARC , Dublin Core , Text Encoding Initiative TEI , and other metadata schemes. For example, say an archive has a MARC record in their catalog describing a manuscript. If the archive makes a digital copy of that manuscript and wants to display it on the web along with the information from the catalog, it will have to translate the data from the MARC catalog record into a different format such as Metadata Object Description Schema MODS that is viewable in a webpage. Because MARC has different fields than MODS, decisions must be made about where to put the data into MODS. This type of translating from one format to another is often called metadata mapping or field mapping, and is related to Data mapping data mapping, and Semantic mapping semantic mapping. Crosswalks also have several technical capabilities. They help databases using different metadata schemes to share information. They help metadata harvesters create union catalogs. They enable search engines to search multiple databases simultaneously with a single query. Challenges for crosswalks One of the biggest challenges for crosswalks is that no two metadata schemes are 100 equivalent. One scheme may have a field that doesn t exist in another scheme, or it may have a field that is split into two different fields in another scheme this is why ...   more details



  1. Schema for Object-Oriented XML

    Schema for Object Oriented XML , or SOX , is an XML schema language developed by Commerce One . In 1998 a SOX specification was submitted to the World Wide Web Consortium and published as a W3C Note. A revised version, SOX 2.0, was published as a W3C Note in 1999. SOX was one of several predecessors of the W3C s XML Schema W3C XML Schema language. After the publication of XML Schema, SOX continued to be supported by Commerce One until the company s bankruptcy in late 2004. The patents for SOX and other Commerce One technologies were purchased by Novell, Inc. in December 2004, reportedly in an effort to prevent them from being exploited by unrelated companies whose primary business is filing patent related lawsuits. http www.iht.com articles 2005 05 02 business novell.php See also XML Schema W3C XML Schema Simple Outline XML another XML technology with the initials SOX External links http www.w3.org TR NOTE SOX SOX schema language W3C Note Soft eng stub Category XML Category XML based standards ja Schema for Object Oriented XML ...   more details



  1. XML Schema (W3C)

    Hatnote This article is about the W3C s XML Schema language, also known as XSD XML Schema Definition . For information about XML schema languages in general, see XML schema infobox file format name XML Schema W3C extension .xsd mime application xml, text xml owner World Wide Web Consortium genre XML schema XML schema languages XML Schema language extendedfrom XML standard http www.w3.org TR xmlschema ... www.w3.org TR xmlschema11 2 1.1, Part 2 Datatypes Recommendation XML Schema , published as a W3C recommendation ... 02 04 ref is one of several XML schema XML schema languages . It was the first separate schema language for XML to achieve Recommendation status by the W3C. Because of confusion between XML Schema as a specific W3C specification, and the use of the same term to describe schema languages in general, some parts of the user community referred to this language as WXS , an initialism for W3C XML Schema, while others referred to it as XSD , an initialism for XML Schema Document a document written in the XML Schema language, typically containing the xsd XML namespace prefix and stored with the .xsd ... used in this article. Like all XML schema languages, XSD can be used to express a set of rules to which an XML document must conform in order to be considered valid according to that schema. However, unlike most other schema languages, XSD was also designed with the intent that determination ... processing software, but the schema language s dependence on specific data types has provoked ... specification acknowledges the influence of Document Type Definition DTD s and other early XML schema efforts such as DDML , Schema for Object Oriented XML SOX , XML Data, and XDR Schema XDR . It has ..., XDR and SOX continued to be used and supported for a while after XML Schema was published. A number ... Schema in December 2006. ref cite web url http msdn.microsoft.com en us library ms761410 28v VS.85 29.aspx title Removal of XDR Schema Support in MSXML 6.0 accessdate 2010 09 19 ref Commerce One , Inc ...   more details



  1. Schema (genetic algorithms)

    merge from Propagation of schema date December 2011 A schema is a template in computer science used in the field of genetic algorithm s that identifies a subset of strings with similarities at certain string positions. Schemata are a special case of cylinder set s and so form a topological space . ref name Holland1 cite book last Holland title Adaptation in Natural and Artificial Systems year 1992 reprint publisher The MIT Press author Holland accessdate 13 July 2010 ref Description For example, consider binary strings of length 6. The schema 1 0 1 describes the set of all words of length 6 with 1 s at positions 1 and 6 and a 0 at position 4. The is a Wildcard character wildcard symbol, which means that positions 2, 3 and 5 can have a value of either 1 or 0. The order of a schema is defined as the number of fixed positions in the template, while the defining length math delta H math is the distance between the first and last specific positions. The order of 1 0 1 is 3 and its defining length is 5. The fitness of a schema is the average fitness of all strings matching the schema. The fitness of a string is a measure of the value of the encoded problem solution, as computed by a problem specific evaluation function. Length The length of a schema math H math , called math N H math , is defined as the total number of nodes in the schema. math N H math is also equal to the number of nodes in the programs matching math H math . ref name UCL1 cite web title Foundations of Genetic Programming url http www.cs.ucl.ac.uk staff W.Langdon FOGP publisher UCL UK accessdate 13 July 2010 ref Disruption If the child of an individual that matches schema H does not itself match H, the schema is said to have been disrupted . ref name UCL1 ref See also Holland s schema theorem Propagation of schema References Reflist bioinformatics stub compu AI stub comp sci stub Category Genetic algorithms Category Genetic programming ...   more details



  1. DbForge Schema Compare for Oracle

    Infobox Software name dbForge Schema Compare for Oracle caption dbForge Schema Compare for Oracle collapsible author developer Devart released latest release version 2.0.62 latest release date 06 06 2011 latest preview version latest preview date status Active frequently updated yes programming language C Sharp programming language C operating system Microsoft Windows platform size 16,7MB language English genre Relational database management system RDBMS license Commercial website http www.devart.com dbforge oracle schemacompare http www.devart.com dbforge oracle schemacompare dbForge Schema Compare for Oracle is a software application created by Devart company Devart for comparing and synchronizing schemes of Oracle Database Oracle databases. TOC Editions licenses dbForge Schema Compare for Oracle is available in two editions Standard and Professional. Standard edition includes basic tools for schema comparison and synchronization. Professional edition is a fully featured software for schema comparison and synchronization with additional tools aimed at database management simplification ref http www.devart.com dbforge oracle schemacompare editions.html dbForge Schema Compare for Oracle ... February 23rd, 2011 in Standard edition only. dbForge Schema Compare for Oracle was also available in early ... Schema Compare for Oracle History , Devart ref . Functionality dbForge Schema Compare for Oracle has got a number of features, related to Oracle Database Oracle database schema comparison and synchronization ... type, package, procedure, sequence, synonym, table, table type, view, XML schema Additional comparison support user comments on schema objects, per object security permissions Comprehensive PL SQL code ... wizard Schema comparison report generation Rich synchronization options Schema snapshots and version control integration Saving schema comparison settings for the next usage Works with multiple schemas ... dbForge Schema Compare for Oracle Features , Devart ref . See also Devart company DbForge Data Compare ...   more details



  1. XML schema language comparison

    TOCright An XML schema is a description of a type of Extensible Markup Language XML document, typically ... available for specifying an XML schema. Each language has its strengths and weaknesses. Note the W3C defined schema language is called XML Schema W3C XML Schema . However, this name can be confusing in the context of referring to a number of XML schema languages. As such, throughout this document, references to the term XML schema will be any XML schema language where the meaning might be ambiguous, while the term XML Schema W3C W3C XML Schema referred to in this article as WXS will be used for the W3C defined XML schema language. Overview Though there are a number of schema languages available, the primary three languages are Document Type Definition s, XML Schema W3C W3C XML Schema , and RELAX ... of other schema languages. The primary purpose of a schema language is to specify what the structure ... attributes are and are not legal to have on a particular element, and so forth. A schema is somewhat equivalent to a grammar for a language a schema defines what the vocabulary for the language may ... the most widely supported schema language for XML. Because DTDs are one of the earliest schema ... as well. W3C XML Schema main XML Schema W3C Advantages over DTDs Compared to DTDs, W3C XML Schemas ... aware, and provide support for types. W3C XML Schema is written in XML itself, and therefore has a schema of its own appropriately, written in W3C XML Schema . W3C XML Schema has a large number of built in and derived data types. These are specified by the W3C XML Schema specification, so all W3C XML Schema validators and processors must support them. Due to the nature of the schema language ... in terms of the schema itself. This functionality, known as PSVI Post Schema Validation Infoset ... XML Schema allow for similar mechanisms of specificity. Both allow for a degree of modularity in their languages, going so far as to being able to split the schema into multiple files. And both of them ...   more details



  1. Holland's schema theorem

    Holland s schema theorem is widely taken to be the foundation for explanations of the power of genetic algorithms . It was proposed by John Henry Holland John Holland in the 1970s. A schema genetic algorithms schema is a template that identifies a subset of strings with similarities at certain string positions. Schemata are a special case of cylinder set s and so form a topological space . Description For example, consider binary strings of length 6. The schema 1 10 1 describes the set of all strings of length 6 with 1 s at positions 1, 3 and 6 and a 0 at position 4. The is a Wildcard character wildcard symbol, which means that positions 2 and 5 can have a value of either 1 or 0. The order of a schema is defined as the number of fixed positions in the template, while the defining length math delta H math is the distance between the first and last specific positions. The order of 1 10 1 is 4 and its defining length is 5. The fitness of a schema is the average fitness of all strings matching the schema. The fitness of a string is a measure of the value of the encoded problem solution, as computed by a problem specific evaluation function. Using the established methods and genetic operator s of genetic algorithms , the schema theorem states that short, low order schemata with above average fitness increase exponentially in successive generations. Expressed as an equation math operatorname E m H,t 1 geq m H,t f H over a t 1 p . math Here math m H,t math is the number of strings belonging to schema math H math at generation math t math , math f H math is the observed fitness of schema ... of disruption math p math is the probability that crossover or mutation will destroy the schema ... of mutation and math p c math is the probability of crossover. So a schema with a shorter ... is why the Schema Theorem is an inequality rather than an equality. The answer is in fact simple the Theorem neglects the small, yet non zero, probability that a string belonging to the schema math H ...   more details



  1. Three schema approach

    Image 4 2 ANSI SPARC three level architecture.svg thumb 320px The notion of a three schema model was first ... Industries STEP Technical Liaison Executive EPISTLE . ref The three schema approach , or the Three Schema Concept , in software engineering is an approach to building information systems and systems ... . Retrieved 30 September 2008. ref Overview The three schema approach offers three types of schemas with schema techniques based on formal language descriptions ref Mary E.S. Loomis 1987 . The Database Book . p. 26. ref External schema for user views Conceptual schema integrates external schemata Internal schema that defines physical storage structures At the center, the conceptual schema defines ... and talk about them. The physical schema according to Sowa 2004 describes the internal formats of the data stored in the database , and the external schema defines the view of the data presented ... view and the computer view . From the user view, which will be referred to as the external schema ... to as the internal schema, data is defined in terms of file structures for storage and retrieval ... of Data ref name ITL93 Image A2 3 Three schema approach.jpg thumb 320px Three schema approach ref ... schema defined for an initial application cannot be readily used for subsequent applications .... This view, referred to as a conceptual schema is a single integrated definition of the data ... the data is physically stored or accessed, see figure. The primary objective of this conceptual schema ... schema model consisting of a conceptual model , an external model, and an internal or physical ... by Charles Bachman in 1975. The ANSI X3 SPARC Report characterized DBMSs as having a two schema organization. That is, DBMSs utilize an internal schema, which represents the structure of the data as viewed by the DBMS, and an external schema, which represents various structures of the data as viewed by the end user. The concept of a third schema conceptual was introduced in the report. The conceptual ...   more details



  1. Axiom schema of specification

    of logic , mathematics , and computer science that use it, the axiom schema of specification , axiom schema of separation , subset axiom scheme or axiom schema of restricted comprehension , is a schema logic schema of axiom s in Zermelo Fraenkel set theory . It is also called the axiom schema of comprehension ... of the schema is included for each formula in the language of set theory with free Variable ... language of set theory, the axiom schema is math forall w 1, ldots,w n , forall A , exist B ... axiom for every such predicate mathematics predicate thus, this is an axiom schema . To understand this axiom schema, note that the set B must be a subset of A . Thus, what the axiom schema is really saying is that, given a set A and a predicate P , we can find a subset B of A whose .... The axiom schema of specification is characteristic of systems of axiomatic set theory related to the usual ... Platek set theory with urelements . Relation to the axiom schema of replacement The axiom schema of separation can almost be derived from the axiom schema of replacement . First, recall this axiom schema math forall A , exist B , forall C , C in B iff exist D , D in A and C F D math for any ... with the axiom of empty set . For this reason, the axiom schema of separation is often left out ... in the following sections. Unrestricted comprehension The axiom schema of comprehension unrestricted ... sub n sub . This axiom schema was tacitly used in the early days of naive set theory , before a strict ... the axiom schema of specification was the beginning of axiomatic set theory. Most of the other Zermelo ... to make up for some of what was lost by changing the axiom schema of comprehension to the axiom schema of specification each of these axioms states that a certain set exists, and defines that set by giving a predicate for its members to satisfy, i.e. it is a special case of the axiom schema ... E . In this theory, there is a theorem schema that reads math exist D forall C, C isin D harr left ...   more details



  1. Axiom schema of predicative separation

    Noref date November 2009 In axiomatic set theory , the axiom schema of predicative separation , or of restricted , or &Delta sub 0 sub separation, is a schema logic schema of axiom s which is a restriction of the usual axiom schema of separation in Zermelo Fraenkel set theory . It only asserts the existence of a subset of a set if that subset can be defined without reference to the entire Von Neumann universe universe of sets. The axiom appears in the systems of constructive set theory CST and CZF, as well as in the system of Kripke Platek set theory . The name &Delta sub 0 sub comes from the Levy hierarchy in analogy with the arithmetic hierarchy . The formal statement of this is the same as full separation schema, but with a restriction on the formulas that may be used. For any formula &phi math forall x exist y forall z z in y leftrightarrow z in x wedge phi z math provided, as usual, that the variable y is not free in &phi but also provided that &phi contains only bounded quantifiers . That is, all quantifiers in &phi if there are any must appear in the form math exist x in y psi x math or math forall x in y psi x math for some sub formula &psi . The meaning of this is that, given any set x , and any predicate &phi there is a set y whose elements are the elements of x which satisfy &phi , provided &phi only quantifies over existing sets, and never quantifies over all sets. This restriction is necessary from a impredicativity predicative point of view, since the universe of all sets contains the set being defined. If it were referenced in the definition of the set, the definition would be circular. Although the schema contains one axiom for each restricted formula &phi , it is possible in CZF to replace this schema with a finite number of axioms. Citation needed date March 2012 settheory stub Category Constructivism mathematics Category Axioms of set theory ...   more details



  1. Metadata Object Description Schema

    Infobox name MODS title Metadata Object Description Schema MODS image File MODS Logo.jpg 150px alt Metadata Object Description Schema MODS caption MODS Logo The Metadata Object Description Schema MODS is an Extensible Markup Language XML based bibliographic description schema developed by the United States Library of Congress Network Development and Standards Office. MODS was designed as a compromise between the complexity of the MARC standards MARC format used by libraries and the extreme simplicity of Dublin Core metadata. About MODS History and development MODS was first announced for trial use in June, 2002. As of June 2010 it is at version 3.4 ref cite web url http presentations.ala.org images 1 1f Riley.pdf title MODS and MADS Current implementations and future directions accessdate 2011 08 01 ref . The number of users of MODS is unknown. Implementers are encouraged to register their uses of MODS in the http www.loc.gov standards mods registry.php implementation registry on the official MODS website. To date there are about 35 projects listed in the registry, although it is assumed that many others are making use of the standard. Users are primarily operating in the area of digital libraries , and some of the registered uses are in digital library projects at the Library of Congress . Relationship to MARC The MODS record has been designed to carry key data elements from the MARC ... and other simpler formats can be mapped and enhanced Maintenance board Revisions to the schema are suggested ... of Congress carries out the application of approved changes to the schema and maintains the official web site for the standard. There is no formal standards body involved in the MODS schema at this time .... Metadata Authority Description Schema was created to serve as a companion to the Metadata Object Description Schema MODS . http www.loc.gov standards mads Metadata standards References references External ... Category Metadata de Metadata Object Description Schema ...   more details



  1. XML Schema Editor

    The W3C s XML Schema W3C XML Schema Recommendation defines a formal mechanism for describing XML documents ... to understand without committing large amounts of time. XML Schema Editor Tools The problems users face ... any text based editor can be used to edit an XML Schema, a graphical editor offers advantages ... approaches to the presentation of information Text View The text view of an XML Schema shows the schema in its native form. XML Schema Editors generally add to the text view with features including ... coloring. For more lengthy and complex schema documents, this is often difficult for even highly ... Schema displays a graphical entity for each element within the XML Schema. This can make an XSD ... may be required. Logical View A logical view shows the structure of the XML Schema without showing all the detail of the syntax used to describe it. This provides a clearer view of the XML Schema, making ... The following example will show the source XSD, logical and physical views for a simple schema. source lang xml ?xml version 1.0 encoding utf 8 ? xs schema elementFormDefault qualified xmlns xs http ... xs element xs sequence xs complexType xs element xs schema source class wikitable Physical View Logical View Image SimpleXsd Physical.png A graphical representation of the schema code above Image SimpleXsd Logical.png A graphical representation of the schema code above A Sample XML Document for the schema ..., but without the syntactical clutter, making it easier to understand and work with. XML Schema Editors As the XSD standard has gained support, a host of XML Schema editors have been developed. class ... No proprietary valign top Oxygen xml http www.oxygenxml.com xml schema editor.html screenshots Image ... 16px No proprietary valign top Stylus Studio http www.stylusstudio.com xml schema editor.html screenshots ... center 16px No proprietary valign top XML Fox Freeware Edition http www.xmlfox.com xml schema editor.htm ... Reflist DEFAULTSORT Xml Schema Editor Category XML Category World Wide Web Consortium standards ...   more details



  1. Metadata Authority Description Schema

    oneref date December 2010 Metadata Authority Description Schema MADS is an XML schema developed by the United States Library of Congress Network Development and Standards Office that provides an authority control authority element set to complement the Metadata Object Description Schema MODS . ref cite journal title Standards Update Some Interesting XML Standards author Mark Needleman journal Serials Review volume 31 issue 1 date March 2005 pages 70 71 doi 10.1016 j.serrev.2004.11.012 ref History April 2004 Preliminary version for review December 2004 Draft for review April 2005 Version 1.0 published Further reading cite web url http www.ala.org ala mgrps divs lita litamembership litaigs authorityalcts MADS2005Annual.ppt title MADS, a MODS Companion author Sally McCallum, Library of Congress References reflist External links official http www.loc.gov standards mads Category Bibliography file formats Category Library cataloging and classification Category Metadata ...   more details



  1. Axiom schema of replacement

    In set theory , the axiom schema of replacement is a schema logic schema of axiom s in Zermelo Fraenkel ... infinite sets in ZFC. The axiom schema is motivated by the idea that whether a class set theory class ... ZFC only speaks of sets, not proper classes, the schema is stated only for definable bijections ... F sub P sub x x A . The axiom schema of replacement states that if F is a definable class function ... over definable functions in first order logic, one instance of the schema is included for each ... , A , x , y but B is not free in . In the formal language of set theory, the axiom schema is math ... n, A end align math Axiom schema of collection The axiom schema of collection is closely related to and frequently confused with the axiom schema of replacement. While replacement says that the image ... sub n sub , x , y but neither A nor B is free in . Then the axiom schema is math forall w 1, ldots ... that it will contain only one. The axiom schema is sometimes stated without any restrictions ... be elements x in A that are not associated to any other sets by . However, the axiom schema as stated ... set B will contain at least one such y . The resulting axiom schema is also called the axiom schema of boundedness . The axiom schema of collection is equivalent to the axiom schema of replacement over ... and philosophy The axiom schema of replacement was not part of Ernst Zermelo s 1908 axiomatisation ... since each individual axiom was developed earlier by either Zermelo or Fraenkel. The axiom schema ... is the first one which can be shown to exist in ZF but not in Z. The axiom schema of replacement ... does have an important role in the study of set theory itself. For example, the replacement schema ... to find some other representation for ordinal number s. Although the axiom schema of replacement ... systems in topos theory. Relation to the axiom schema of specification The axiom schema of specification , the other axiom schema in ZFC, is implied by the axiom schema of replacement and the axiom ...   more details



  1. White pages schema

    Unreferenced date December 2009 A white pages schema is a data model , specifically a logical schema , for organizing the data contained in entries in a directory service , database, or application, such as an address book. In a white pages directory, each entry typically represents an individual user computing person that makes use of network resources, such as by receiving email or having an account to log into a system. In some environments, the schema may also include the representation of organizational divisions, roles, groups, and devices. The term is derived from the white pages , the listing of individuals in a telephone directory , typically sorted by the individual s home location e.g. city and then by their name. While many PTT telephone service providers have for decades published a list of their subscriber s in a telephone directory , and similarly corporations published a list of their employees in an internal directory, it was not until the rise of electronic mail systems that a requirement for standards for the electronic exchange of subscriber information between different systems appeared. A white pages schema typically defines, for each real world object being represented what attributes of that object are to be represented in the entry for that object what relationships of that object to other objects are to be represented how is the entry to be named in a Directory Information Tree DIT how an entry is to be located by a client searching for it how similar entries are to be distinguished how are entries to be ordered when displayed in a list One of the earliest attempts to standardize a white pages schema for electronic mail use was in X.520 and X.521 ... Access Protocol standard schema in RFC 2256. One of the most widely deployed white pages schemas used ... pages schema, such as attributes used for naming purposes were non unique in large environments ... of human individuals DEFAULTSORT White Pages Schema Category Data modeling Category Data management ...   more details



  1. Document Schema Definition Languages

    Refimprove date March 2009 Document Schema Definition Languages DSDL is a framework within which multiple validation tasks of different types can be applied to an XML document in order to achieve more complete validation results than just the application of a single technology. It is specified by the standard International Organization for Standardization ISO International Electrotechnical Commission IEC 19757. ref http www.itscj.ipsj.or.jp sc34 ref It was developed by ISO IEC JTC1 SC34 ISO IEC Joint Technical Committee 1, Subcommittee 34 Document description and processing languages . ref cite web url http www.iso.org iso iso technical committee.html?commid 45374 title JTC 1 SC 34 Document description and processing languages author ISO publisher ISO accessdate 2009 12 25 ref ref cite web url http www.itscj.ipsj.or.jp sc34 title JTC 1 SC 34 Document Description and Processing Languages author ISO JTC1 SC34 accessdate 2009 12 25 ref DSDL is a multipart standard defining a modular set of specifications for describing the document structures, data types, and data relationships in structured information resources. Part 1 Overview Part 2 Regular grammar based validation RELAX NG Part 3 Rule based validation Schematron Part 4 Namespace based Validation Dispatching Language NVDL Part 5 Extensible Datatypes http www.jenitennison.com datatypes DTLL.html Datatype Library Language DTLL Part ... Definitions DTDs Datatype and namespace aware DTDs Part 10 Validation Management Part 11 Schema Association See also RELAX NG Schematron Document Type Definition DTD Namespace Routing Language XML Schema W3C W3C Schema External links http dsdl.org Home page for DSDL http www.iso.org iso iso catalogue ... Document Schema Definition Language DSDL Part 2 Regular grammar based validation RELAX NG Notes references Category XML based standards Markup languages stub de Document Schema Definition Languages fr Document Schema Definition Languages ja ...   more details



  1. Gender schema theory

    Gender schema theory was formally introduced by Sandra Bem in 1981 as a cognitive theory to explain how individuals become gendered in society, and how sex linked characteristics are maintained and transmitted to other members of a culture ref name bemsl Bem, S. L. 1981 . Gender schema theory A cognitive account of sex typing. Psychological Review, 88 , 354 364 ref . Gender associated information is predominantly transmuted through society by way of Schema psychology schemata , or networks of information that allow for some information to be more easily assimilated than others. Sandra Bem Bem argues that there are individual differences in the degree to which people hold these gender schemata. These differences are manifested via the degree to which individuals are sex typed. Sex typing Core .... ref name bemsl Gender stereotypes Being that gender schema theory is a theory of process and not content ... schema theory came in the form of memory and other cognitive tasks designed to assess facilitated ... when processing information to make schema consistent judgments. Sex typed individuals are also slower when processing information for schema inconsistent judgments. ref name bemsl Later, it was shown ... schema theory and its implications for child development Raising gender aschematic children in a gender ... likely to build and maintain a gender schema. Some examples include an individual differences schema, where children learn to process information on a person by person basis rather than make wide ... schema, where children learn to process sex typed information through a filter that promotes moral ... impact on society, and that the gender schema should be more limited in scope. Within the feminist .... Legacy The legacy of gender schema theory has not been one of great obvious lasting ... picking up interest as more and more women were entering academic fields. While gender schema ... of gender. A major limitation of gender schema theory has been that once research supported ...   more details



  1. Cultural schema theory

    orphan date May 2008 Cultural Schema Theory Nishida, 1999 explains the familiar and pre acquainted knowledge ... Garro, 2000 . Cultural Schema Theory proposes that when we interact with members of the same culture ... schemas are created and stored in our brain Nishida, 1999 . History Cultural Schema Theory may be a relatively ... dates back all the way back to Plato see also Schema and Schema psychology . In the 19th century ... with the appropriate cultural schema, s he may not be able to make sense of culturally ... in one s brain. Subsequent similar instances cause the cultural schema to become more organized ... and emotionally salient likewise, when a schema is only weakly related to a person s self it becomes ... interactions throughout a person s life. This schema is relatively new. Researchers believed it was an important ... Cultural Schema Theory to Cross Cultural Adaptation The term cross cultural adaptation refers to the complex ... , foreign workers , and students . However, this entry specifically applies cultural schema ... relationships. Axioms also help to explain the basic assumptions of the Cultural Schema Theory Nishida ... a person repeats a schema based behavior in his or her culture, the more likely the cultural schema ... a change in one s cultural schema. This causes further changes in all other cultural schemas and results .... Axiom 6 People use both schema driven and date driven processing to perceive new information ... situation, the Cultural Schema Theory is highly applicable. Ms. Gibbons, a United Kingdom British school ... incident can be explained quite well by the Cultural Schema Theory, particularly by discussing Ms ... Theory Cultural Schema Theory is often compared and contrasted with the Cultural Consensus Theory. Both ..., unlike the Cultural Schema Theory, the Cultural Consensus Theory helps to describe and mathematically ... of the Theory Simply put, Cultural Schema Theory can be described as cultural specific world ... Theory and Cultural Schema Theory. Ethos , 28.3, 275 319. Gettleman, Jeffrey 2007 . Sudan accuses ...   more details



  1. Canonical schema pattern

    In software engineering , Canonical Schema is a Design pattern computer science design pattern , applied within the service orientation design paradigm , which aims to reduce the need for performing data model ref name DataModel The structure of the data e.g. in a database, the structure of the data contained in a table is represented by the table schema. In case of XML based documents, the corresponding XML schema document contains the structure of the XML document. ref transformation when services ref name services http www.whatissoa.com p11.php Services ref exchange messages that reference the same data model ref name SODI Mauro. et al. http www.computer.org portal web csdl doi 10.1109 HICSS.2010.336 Service Oriented Device Integration An Analysis of SOA Design Patterns. Online , pp.1 10, 2010 43rd Hawaii International Conference on System Sciences, 2010. Date accessed 30 April 2010. ref . Rationale The interaction between services often requires exchanging business documents. In order for a service consumer to send data related to a particular business entity e.g. a purchase order , it needs to know the structure of the data i.e. the data model. For this, the service provider publishes the structure of the data that it expects within the incoming message from the service consumer ... be the XML schema document. Once the service consumer knows the required data model, it can structure ..., the Canonical Schema pattern dictates the use of standardized data models for those business ... articles article.aspx?p 1350888 Canonical Schema Design Pattern Online . Date accessed April 8, 2010. ref . Usage Image SOA DP Canonical Schema A.JPG thumb alt Diagram A Diagram A br Service ... Schema B.JPG thumb alt Diagram B Diagram B br Both services are using the same data model for representing ..., the application of the Canonical Schema pattern reduces the need for the application of the Data ... from different segments of the enterprise, the Canonical Schema design pattern may need to be applied ...   more details



  1. Gilbert schema for Ulysses

    This wikt schema schema for the novel Ulysses novel Ulysses was produced by its author, James Joyce , in 1921 to help his friend, Stuart Gilbert, understand the fundamental structure of the book. Gilbert published it in 1930 in his book, James Joyce s Ulysses A Study . The original copy of the Gilbert schema is housed in the http archives.lib.siu.edu index.php?p collections controlcard&id 475 Harley K. Croessmann Collection of James Joyce at Southern Illinois University Carbondale . table border 1px cellpadding 5px rules all tr th Title th th Scene fiction Scene th th Hour th th Organ anatomy Organ th th Colour th th Symbol th th Art th th Technic th tr tr td Telemachus td td The Tower td td 8am td td td td White gold color gold td td Heir td td Theology td td Narrative young td tr tr td Nestor mythology Nestor td td The School td td 10am td td td td Brown td td Horse td td History td td Catechism personal td tr tr td Proteus td td The Strand td td 11am td td td td Green td td Tide td td Philology td td Monologue male td tr tr td Calypso mythology Calypso td td The House td td 8am td td Kidney td td Orange colour Orange td td Nymph td td Economics td td Narrative mature td tr tr td Lotophagi Lotus Eaters td td The Bath td td 10am td td Sex organ Genitals td td td td Eucharist td td Botany chemistry td td Narcissism td tr tr td Hades td td The Graveyard td td 11am td td Heart td td White black td td Property caretaker Caretaker td td Religion td td Incubism td tr tr td Aeolus td td The Newspaper td td 12pm td td Lung s td td Red td td Editing Editor td td Rhetoric td td Enthymemic td tr tr td Laestrygonians Lestrygonians td td The Lunch td td 1pm td td Esophagus Oesophagus td td td td Constable s td td Architecture td td Peristalsis Peristaltic td tr tr td Scylla and Charybdis td td The Library td td 2pm td td Brain td td td td Stratford upon Avon Stratford London td td ... female td tr table See also Linati schema for Ulysses Category Ulysses novel Ulysses de Gilbert Schema ...   more details



  1. Linati schema for Ulysses

    Refimprove date December 2009 This wikt schema schema for the novel Ulysses novel Ulysses was produced by James Joyce Joyce in 1920 to help a friend Carlo Linati understand the fundamental structure of the book. ref Ellmann, Richard, Ulysses on the Liffey , Oxford University Press, 1986, ISBN 978 0 19 501663 5, pp. 186 190. ref The schema has been split into two subtables for better ease of reading. table border 1px cellpadding 5px rules all tr th Title th th Time th th Colour th th People th th Science Art th th Meaning th tr tr td Telemachus td td 8am 9am td td Gold color Gold white td td Telemachus Mentor Antinous The Suitors Penelope td td Theology td td Dispossessed son in contest td tr tr td Nestor mythology Nestor td td 9am 10am td td Brown td td Telemachus Nestor Pisistratus Helen td td History td td The wisdom of the ancients td tr tr td Proteus td td 10am 11am td td Blue td td Telemachus Proteus Menelaus Helen Megapenthes td td Philology td td Primal matter td tr tr td Calypso mythology Calypso td td 8am 9am td td Orange colour Orange td td Calypso Penelope Ulysses Callidice td td Mythology td td The departing wayfarer td tr tr td Lotophagi Lotus Eaters td td 9am 10am td td Dark brown td td Euryloches Polites Ulysses Nausicaa td td Chemistry td td The temptation of faith td tr tr td Hades td td 11am 12pm td td Black white td td Ulysses Elpenor Ajax Agamemnon Hercules Eriphyle Sisyphus Orion Laertes etc. Prometheus Cerberus Tiresias Hades Prosperpina Telemachus Antinous td td td td The descent into nothingness td tr tr td Aeolus td td 12pm 1pm td td Red td td Aeolus Sons Telemachus Mentor Ulysses td td Rhetoric td td The derision of victory td tr tr td Laestrygonians Lestrygonians td td 1pm 2pm td td Blood red td td Antiphates The seductive daughter Ulysses td td ... schema for Ulysses References Reflist External links http www.robotwisdom.com jaj ulysses index.html The Internet Ulysses Ulysses DEFAULTSORT Linati Schema For Ulysses Category Ulysses novel it Schema ...   more details



  1. Asset Description Metadata Schema (ADMS)

    noinclude Please do not remove or change this AfD message until the issue is settled Article for deletion dated page Asset Description Metadata Schema ADMS timestamp 20120501000421 year 2012 month May day 1 substed yes help off For administrator use only Old AfD multi page Asset Description Metadata Schema ADMS date 1 May 2012 result keep End of AfD message, feel free to edit beyond this point noinclude The Asset Description Metadata Schema ADMS is a common metadata vocabulary to describe standards, so called interoperability assets, on the Web. Used in concert with Web Syndication web syndication technology ADMS helps people make sense of the complex multi publisher environment around standards and in particular the ones which are semantic assets such as ontologies , data model data models , Data dictionary data dictionaries , code lists, XML and RDF schemas. Despite of their importance, standards are not easily discoverable on the web via search engines because metadata about them is seldom available. Navigating on the websites of the different publishers of standards is not efficient either. File ADMSmodelv1.png thumb ADMS UML model version 1.00 Key terminology A semantic asset is a specific type of standard which involves br highly reusable metadata e.g. xml schemata, generic data models and or reference data e.g. code lists, taxonomies, dictionaries, vocabularies Organisations use semantic assets to share information and knowledge within themselves and with others . Semantic assets are usually very valuable and reusable elements for the development of Information Systems, in particular, as part of machine to machine interfaces. As enablers to interoperable information exchange, semantic assets are usually created, published and maintained by standardisation bodies. Nonetheless, ICT projects and groups of experts also create such assets. There are therefore many publishers of semantic assets with different degrees of formalism. What is ADMS ADMS ref name ADMS ht ...   more details



  1. Unique Particle Attribution

    Orphan date February 2009 The Unique Particle Attribution UPA rule is a mechanism to prevent ambiguity in XML Schema W3C W3C XML Schema version 1.0. Due to the UPA rule the Xml XML schema fragment given below is prohibited xsd sequence xsd element name x type xsd integer minOccurs 0 xsd any minOccurs 0 maxOccurs unbounded processContents skip xsd sequence Given the XML instance fragment x 42 x it is ambiguous whether x should be associated with the element declaration xsd element name x , or the wildcard xsd any . This ambiguity violates the UPA rule and the corresponding XML schema therefore needs to be rejected by XML schema processors compliant to XML Schema W3C W3C XML Schema version 1.0. The W3C XML Schema workgroup is considering so called weak wildcards for XML Schema version 1.1. Using weak wildcards, the explicit element declaration would always take precedence over the wildcard, thus removing the ambiguity. See also XML Schema W3C W3C XML Schema W3C XML External links http blogs.msdn.com b xmlteam archive 2005 08 09 449569.aspx Article UPA in plain English http technet.microsoft.com en us library ms187822 28SQL.90 29.aspx Article Understanding the Unique Particle Attribution Constraint http www.w3.org TR xmlschema 1 cos nonambig XML Schema 1.0 Schema Component Constraint Unique Particle Attribution http lists.w3.org Archives Public www tag 2004Aug att 0010 NRMVersioningProposal.html An Approach for Evolving XML Vocabularies Using XML Schema http www.w3.org TR xmlschema11 1 XML Schema 1.1 Part 1 Structures http www.w3.org TR xmlschema11 2 XML Schema 1.1 Part 2 Datatypes Category XML Category Abbreviations it Unique Particle Attribution ...   more details




Articles 26 - 50 of 3654      Previous     Next


Search   in  
Search for Schema in Tutorials
Search for Schema in Encyclopedia
Search for Schema in Videos
Search for Schema in Books
Search for Schema in Software
Search for Schema in DVDs
Search for Schema in Store


Advertisement




Schema in Encyclopedia
Schema top Schema

Home - Add TutorGig to Your Site - Disclaimer

©2011-2013 TutorGig.info All Rights Reserved. Privacy Statement