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Topic: Schema


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In the News (Wed 25 Nov 09)

  
  Schema
A schema (plural: schemata, or schemas), also known as a scheme (plural: schemes), is a linguistic template or pattern together with a rule for using it to specify a potentially infinite multitude of phrases, sentences, or arguments, which are called instances of the schema.
Schemas are used in logic to specify rules of inference, in mathematics to describe theories with infinitely many axioms, and in semantics to give adequacy conditions for definitions of truth.
Schemas may be classed by the syntactic type of their instances as sentence schemas, subsentential schemas, or argument-text schemas.
plato.stanford.edu /entries/schema   (2127 words)

  
 Encyclopedia: Schema
For example, the axiom schema of replacement is a schema of axioms in axiomatic set theory.
An XML schema provides a means for defining the structure, content and to some extent, the semantics of XML documents.
The Schema and the Great Schema (Μεγαλοσχήμος) are part of the monastic attire of advanced monks and nuns in the Eastern Orthodox Church.
www.nationmaster.com /encyclopedia/Schema   (349 words)

  
 XML Schema - Wikipedia, the free encyclopedia
XML Schema, published as a W3C Recommendation in May 2001, is one of several XML schema languages.
Since other XML schema languages such as RELAX NG now exist, it is important to cite this language as either XML Schema or W3C XML Schema, always with the word Schema capitalized.
An XML Schema instance is an XML Schema Definition (XSD) and typically has the filename extension ".xsd".
en.wikipedia.org /wiki/XML_Schema   (424 words)

  
 Schema Theory
The 18 schemas are grouped into 5 broad schema domains, on the basis of which core needs the schema is related to.
Schema Modes are the moment-to-moment emotional states and coping responses that we all experience.
The goals of Schema Therapy are: to help patients to stop using maladaptive coping styles and thus get back in touch with their core feelings; to heal their early schemas; to learn how to flip out of self-defeating schema modes as quickly as possible; and eventually to get their emotional needs met in everyday life.
www.schematherapy.com /id30.htm   (247 words)

  
 W3C XML Schema
The XML Schema WG is currently working to develop a set of requirements for XML Schema 1.1, which is intended to be mostly compatible with XML Schema 1.0 and to have approximately the same scope, but also to fix bugs and make whatever improvements we can, consistent with the constraints on scope and compatibility.
XML Regexps for XML Schema from Hackerlab XML Regexps for XML Schema from Hackerlab
An XML Schema for the XML Specification doctype by Norm Walsh, 12 October 2000.
www.w3.org /XML/Schema   (3802 words)

  
 Schema Theory: An Introduction   (Site not responding. Last check: 2007-10-21)
Situation-specific schema help to explain the difference between expert and novice interpretation of knowledge; experts, with more complex developed schema in a particular subject area can function better in any given domain than a novice with no schema or an inadequate schema to help them interpret and react to new information.
Since these schemas are context specific, they are dependent on an individual’s experience with and exposure to a subject area rather than simply "raw intelligence." (See references to expert-novice studies on page 155 in Driscoll).
Tuning is when learners realize that their existing schema is inadequate for the new knowledge and modify their existing schema accordingly.
chd.gse.gmu.edu /immersion/knowledgebase/strategies/cognitivism/SchemaTheory.htm   (1823 words)

  
 [No title]
This RELAX NG schema for XML Schema is a little more restrictive than the XML Schema Recommendation in that it also forces there to be a maximum of one of each of these types of facets.
This RELAX NG schema for XML Schema is a little more restrictive than the XML Schema Recommendation in that it also forces there to be a maximum of one of each of these types of facets, and says that if a length element is given, then neither minLength nor maxLength should be present.
This RELAX NG schema for XML Schema is a little more restrictive than the XML Schema Recommendation in that it also forces there to be a maximum of one whiteSpace element within the facets.
www.jenitennison.com /schema/xmlschema.rng   (2285 words)

  
 Schema Therapy
Schema therapy is an innovative psychotherapy developed by Dr. Jeffrey Young for personality disorders, chronic depression, and other difficult individual and couples problems.
Schema therapy integrates elements of cognitive therapy, behavior therapy, object relations, and gestalt therapy into one unified, systematic approach to treatment.
Schema therapy has recently been blended with mindfulness meditation for clients who want to add a spiritual dimension to their lives.
www.schematherapy.com   (65 words)

  
 XML Schema Part 0: Primer Second Edition
This document, XML Schema Part 0: Primer, provides an easily approachable description of the XML Schema definition language, and should be used alongside the formal descriptions of the language contained in Parts 1 and 2 of the XML Schema specification.
In XML Schema, there is a basic difference between complex types which allow elements in their content and may carry attributes, and simple types which cannot have element content and cannot carry attributes.
As schemas become larger, it is often desirable to divide their content among several schema documents for purposes such as ease of maintenance, access control, and readability.
www.w3.org /TR/xmlschema-0   (8916 words)

  
 XML Schema FAQ
XML Schema also provides a kind of general expansion slot in the form of the annotation / appInfo element, which allows information for other processors to be associated with a component.
The XML Schema namespace (http://www.w3.org/2000/10/XMLSchema) is to be used to identify a built-in datatype whenever that type is being used IN THE CONTEXT of an XML Schema; the XML Schema Datatypes namespace (http://www.w3.org/2000/10/XMLSchema-datatypes) is to be used to identify a schema datatype whenever that type is being used OUTSIDE THE CONTEXT of an XML Schema.
The intention of the schema seems to be that of the three roles in any transaction - the schema author, the message author, and the message reader - the message reader should have the last word in specifying to a schema-validating parser what may be a root element.
www.schemavalid.com /faq/xml-schema.html   (2979 words)

  
 P540 - Schema theory & mental models   (Site not responding. Last check: 2007-10-21)
Schema theory would suggest that we understand this because we have activated our schema for pizza (or perhaps our schema for "ordering pizza for delivery") and used that schema to comprehend this scenario.
A schema (plural schemata) is a hypothetical mental structure for representing generic concepts stored in memory.
A schema may be formed and used without the individual's conscious awareness.
education.indiana.edu /~p540/webcourse/schema.html   (2441 words)

  
 SCHEMA - Network of Excellence in Content-Based Semantic Scene Analysis and Information Retrieval
Among the objectives of SCHEMA is the design of a general architecture for content-based analysis, representation indexing and retrieval.
SCHEMA submitted a document and made a presentation during the 68th MPEG meeting in Munich, March 2004.
SCHEMA was presented during a workshop organised by the LabS TECH European Infrastructure Cooperation Network.
www.iti.gr /SCHEMA   (440 words)

  
 Schema - Optimizing the Wireless World
Schema enables operators to transition their networks effectively and within a timeframe and budget that achieves their specific business goals.
Schema leverages its extensive knowledge gained from previous TDMA network optimization projects to better plan and optimize subsequent networks, delivering optimal results on a consistent basis.
Schema enables operators to maximize revenues and enhance subscriber experience at every stage in the transition process, allowing operators to benefit from significant gains in revenues and improved quality of voice and data services long before the transition process has been completed.
www.schema.com /products_tdma_migr.html   (323 words)

  
 XML.com: Comparing XML Schema Languages
In ordinary English, a schema is defined as "an outline or image universally applicable to a general conception, under which it is likely to be presented to the mind; as, five dots in a line are a schema of the number five; a preceding and succeeding event are a schema of cause and effect" (Websters).
Most of the schema languages are too complex to "present to the mind" or to a program the instance documents that they describe, and, more importantly and less subjectively, they often focus on defining validation rules more than on modeling a class of documents.
Furthermore, modeling an XML tree is very complex, and the schema languages often make a judgment on "good" and "bad" practices in order to limit their complexity and consequent validation processing times.
www.xml.com /pub/a/2001/12/12/schemacompare.html   (1620 words)

  
 XML.com: Using W3C XML Schema
The W3C XML Schema Definition Language is an XML language for describing and constraining the content of XML documents.
There appears to be no special reason for this, but the W3C XML Schema Working Group has considered that it was simpler to impose a relative order to the definitions of the list of elements and attributes within a complex type, and that it was more natural to define the attributes after the elements.
W3C XML Schema gives us a third mechanism, which is to define data types (either simple types that will be used for PCDATA elements or attributes or complex types that will be used only for elements) and to use these types to define our attributes and elements.
www.xml.com /lpt/a/2000/11/29/schemas/part1.html   (3728 words)

  
 RDF Vocabulary Description Language 1.0: RDF Schema
RDF Schema defines classes and properties that may be used to describe classes, properties and other resources.
RDF's vocabulary description language, RDF Schema, is a semantic extension (as defined in [RDF-SEMANTICS]) of RDF.
Despite the lack of formal specification of the meaning of this property, there is value in defining it to encourage the use of a common idiom in examples of this kind.
www.w3.org /TR/rdf-schema   (3714 words)

  
 XML Schema Part 2: Datatypes Second Edition
This document is also available in these non-normative formats: XML, XHTML with visible change markup, Independent copy of the schema for schema documents, A schema for built-in datatypes only, in a separate namespace, and Independent copy of the DTD for schema documents.
It is the intention of this specification that it be usable outside of the context of XML Schemas for a wide range of other XML-related activities such as [XSL] and [RDF Schema].
A literal in the ·lexical space· representing a decimal number d maps to the normalized value in the ·value space· of float that is closest to d in the sense defined by [Clinger, WD (1990)]; if d is exactly halfway between two such values then the even value is chosen.
w3.org /TR/xmlschema-2   (9338 words)

  
 Cognitive Schema   (Site not responding. Last check: 2007-10-21)
Role schemas- These schema contain sets of role expectations, that is, how we expect an individual occupying a certain role to behavior.
Prediction- Once an individual is placed into a category (role) we tend to assume he or she will behave in accordance with the role schema and use this as basis to predict future behavior of this person.
Rigid schema, or rigid mental models, tend to be associated with a strong Judging (J) cognitive style, while individuals with a strong Perceiving (P) cognitive style tend to develop flexible mental models.
www.cba.uri.edu /Scholl/Notes/Cognitive_Schema.htm   (796 words)

  
 The schema Element
The schema element defines the root element of a schema.
The form for attributes declared in the target namespace of this schema.
In this example, the schema components (element name, type) in the http://www.w3.org/2001/XMLSchema namespace are unqualified and those for http://www.w3schools.com/w3schoolsschema (mystring) are qualified with the wsc prefix:
www.w3schools.com /schema/el_schema.asp   (628 words)

  
 TIP: Concepts   (Site not responding. Last check: 2007-10-21)
Schema have received significant empirical support from studies in psycholinguistics.
Schema are also considered to be important components of cultural differences in cognition (e.g., Quinn and Holland, 1987).
Research on novice versus expert performance (e.g., Chi et al., 1988) suggests that the nature of expertise is largely due to the possession of schemas that guide perception and problem-solving.
tip.psychology.org /schema.html   (280 words)

  
 Heml Schemas   (Site not responding. Last check: 2007-10-21)
Written in XML Schema, this schema is much more complex than previous versions, and is intended to be practicable.
This schema is available at http://heml.mta.ca/heml-cocoon/schemas/2001-07-02/heml.xsd, and it has automatically generated documentation.
This schema is a DTD (we intend to use XML Schema in the future) and is available at http://heml.mta.ca/heml-cocoon/schemata/20010402/heml.dtd.
heml.mta.ca /heml-cocoon/site/schemata.html   (155 words)

  
 Eclipse Tools - EMF Home
The XML Schema Infoset Model is a reference library that provides an API for use with any code that examines, creates or modifies W3C XML Schema (standalone or as part of other artifacts, such as XForms or WSDL documents).
XSD is a library that provides an API for manipulating the components of an XML Schema as described by the W3C XML Schema specifications, as well as an API for manipulating the DOM-accessible representation of XML Schema as a series of XML documents, and for keeping these representations in agreement as schemas are modified.
The project goal is to support 100% of the functionality of XML schema representation, but not necessarily to provide document against schema assessment or validation services, which are normally provided by a validating parser, such as Apache's Xerces-J.
www.eclipse.org /xsd   (257 words)

  
 XML tutorial: DTD, XML Schema, and DSD
Schemas and schema languages - defining the syntax of your own XML language
Schema inclusion and redefinition - modularity and reuse
Problems with XML Schema - 15 reasons why we haven't seen the last schema language
www.brics.dk /~amoeller/XML/schemas   (166 words)

  
 MARC in XML
The Network Development and MARC Standards Office, with interested experts, has developed a schema for a bibliographic element set that may be used for a variety of purposes, and particularly for library applications.
As an XML schema, the "Metadata Object Description Schema" (MODS) is intended to carry selected data from existing MARC 21 records as well as to enable the creation of original resource description records.
MARCXML schema by specifying each MARC data element as an XML element.
www.loc.gov /marc/marcxml.html   (382 words)

  
 Schema-root.org - an encyclopedia of current events
The "schema" on the left-hand side of each page is a hierarchical (and somewhat arbitrary) categorization of the pages.
In most cases the tree structure places similar topics close to each other, providing a means of pursuing related material of interest.
The schema display will show the selected node, any child nodes it may contain, as well as sibling nodes (nodes occurring at the same hierarchial level as the selected node).
www.schema-root.org /?about   (953 words)

  
 Neoplatonism [Internet Encyclopedia of Philosophy]
Iamblichus' On the Mysteries was written as a reply to Porphyry's criticisms, but the defense of the pupil did not succeed in vanquishing the persistent attacks of the master.
According to the schema of Plotinian dialectic, the 'stance' of the individual soul is the sole source of truth certainty, being a judging faculty dependent always upon the higher Soul.
Yet what we witness in these writings is the attempt by a thinker who is at once religiously sensitive and philosophically engaged to bring the highly developed Platonism of his time into line with a Christian theological tradition that was apparently persisting on the fringes of orthodoxy.
www.utm.edu /research/iep/n/neoplato.htm   (6884 words)

  
 XML Schema Validator
If you specify a schema file on this form then it will use be used to validate the instance.
This requires that the instance document specifies the location for the schema document using a schemaLocation attribute.
XML schema validators check that an instance document meets the requirements of its defining XML schema.
tools.decisionsoft.com /schemaValidate.html   (241 words)

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