W3C XML Schema
XML Schema
The XML Schema Working Group is closed, having completed its work successfully.
The specifications are now maintained by the
W3C XML Core Working Group
Tools
Usage
Resources
Specifications and
Development
XML Schemas express shared vocabularies and allow machines to carry out
rules made by people. They provide a means for defining the structure,
content and semantics of XML documents. in more
detail.
XML Schema 1.0 was approved as a W3C Recommendation on 2 May 2001 and a second
edition incorporating many errata was published on 28 October 2004; see
reference list
for pointers.
The XML Schema Working Group, part of the
XML Activity
, is responsible for the W3C's
work on this topic -- for details see the Working Group's
charter
W3C Members can also participate in the W3C XML Schema Interest Group,
a forum for the discussion of technical issues relating to the
development of XML Schema.
See also: Robin Cover's
index of XML Schema
materials
XML Schema 1.1
Status
XML Schema 1.1 (in two parts) is a W3C Recommendation.
It 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 Schema 1.1 Part 2: Datatypes
and
XML Schema 1.1
Part 1: Structures
are available.
There is also a
Test Collection
aimed at determining which parts of XSD 1.1 have been implemented;
several implementations are under development.
If you find errors in Schema 1.1, please let us know. The best way to do
that is to add an entry to the W3C's
public
installation of Bugzilla
which the WG uses to track issues and enhancement requests,
specifying "XML Schema" as the 'product' name. Full instructions
can be found at
. If access to
Bugzilla is not feasible, please send your comments to the W3C XML
Schema Working Group's public comments mailing list,
www-xml-schema-commentsAw3.org
archive
).
Please note that both the Bugzilla installation and the comments list are
not only public-write but also
public-read; don't say things you don't want seen in public.
Each Bugzilla entry and email message should contain only one
comment.
The Bugzilla system should also be used to report errors with XML Schema 1.0.
Thanks!
Tools
Please send any related announcements to
xmlschema-dev
[This list is not actively maintained because the Working Group no loner exists.]
2010-01-05
generate bindings from XML Schema
2009-11-19
Python XML Schema Bindings
2008-01-06
Visual Schema
2007-12-12
Stylus Studio 2008 released
2007-11-13
CodeSynthesis XSD/e 2.0.0 released
2007-11-04
Saxon 9.0
2007-10-23
Liquid XML Studio 2008
2007-10-17
Intel XML Software
2007-09-20
XSD/e version 1.1.0
2007-09-17
XMLSpy/Altova
2007-09-03
Xerces-C++ 2.8.0
2007-08-22
LMX V3.4
2007-08-01
CodeSynthesis XSD 3.0.0
2007-06-05
xchecker
2007-05-17
oNVDL
2007-05-08
oXygen XML version 8.2
2007-01-22
DocFlex/XSD
2006-11-28
LINQ to XSD
2006-11-17
SchemaAgent 2007
2006-10-18
XSDBench
2006-09-22
XmlPad
2006-09-19
xnsdoc 1.2 - XML Schema documentation generator
2006-09-13
BRICS Schematools
2006-09-07
EditiX
Tools are listed alphabetically:
BRICS Schematools
CodeSynthesis XSD
CodeSynthesis XSD/e
DocFlex/XSD
EDIFIX
EditiX
Intel XML Software
JAXB Reference Implementation
JaxFront
JaxMe
JBind
KLEEN
LINQ to XSD
Liquid XML
LMX
MSXML
NetBeans Schema support
oNVDL
oXygen
PyXB
Saxon
SchemaAgent
Schema-Forms
Schematron Validator
Schema Viewer
SQC
Stylus Studio
Visual Schema
XBinder
XBuilder
xchecker
Xerces-C(++)
Xerces-J
XML Architect
XML Beans
XML Datatypes Library
XMLEspresso
XMLFox
XML Infoset Browser
XML Nanny
XMLObjective
XmlPad
XML Schema Object Model
XML Schema Validator
XML Spy
XML ValidatorBuddy
XML::Validator::Schema
xnsdoc
XS3P
xsd2cpp
XSDBench
XSD Inference Tool
XSD/e
xsddoc
XSDDoc
xsdregex
XSD-to-C++
XSDValid
XSU
XSV
Altova XML (XML Spy)
Version 2008 of the Altova XML product line is available
2007-09-17
Just a quick note to announce general availability of Version 2008 of
the Altova XML product line. A few new features are:
Support for working with Open XML data in Microsoft(r) Word, Excel,
and now PowerPoint 2007 files in XMLSpy
Database content editing in XMLSpy and DatabaseSpy
XInclude and XPointer support in XMLSpy
Multi-file XPath evaluation in XMLSpy
New aggregate and ValueMap data processing functions for data mapping
in MapForce
Modular StyleVision design files for re-using stylesheet constructs
Support for visualizing & managing XSLT and WSDL file relationships in
SchemaAgent
More info and screenshots:
Download an upgrade or free trial:
BRICS Schematools
dk.brics.schematools -
XML Schema, RELAX NG, DTD, XML graphs
Anders Møller 2006-09-13
dk.brics.schematools is a Java package for manipulation and validation
of XML graphs (also known as Summary Graphs) and schemas written in
Restricted RELAX NG, DTD, or XML Schema, and for XPath evaluation on XML
graphs.
The first public release is now available from
Codalogic LMX
Codalogic LMX - XSD to C++ data binding compiler
Pete
Cordell 2007-09-22
LMX is an XML to C++ data binding code generation tool offering
comprehensive XSD schema (and DTD) feature coverage. Focussing specifically
on the nuances of C++, it comes with its own lightweight parser, for which
compact and easy to build source code is available. Thus, in addition to
being easy to use and deploy on Windows and Linux platforms, it is a great
solution for cross-platform development.
For more information, visit
(or the convenience URL
).
CodeSynthesis XSD - XML Schema to C++ compiler
CodeSynthesis XSD 3.0.0 - Open-source XML Schema to C++ compiler
Boris Kolpackov 2007-08-01
CodeSynthesis XSD is an open-source, cross-platform W3C XML Schema to C++
data binding compiler. Provided with a schema, it generates C++ classes
that represent the given vocabulary as well as parsing and serialization
code. You can then access the data stored in XML using types and functions
that semantically correspond to your application domain rather than
dealing with elements, attributes, and text in a direct representation
of XML such as DOM or SAX.
XSD supports both in-memory and stream-oriented processing models by
implementing two C++ mappings: C++/Tree and C++/Parser. The C++/Tree
mapping represents the information stored in XML instance documents
as a tree-like, in-memory object model. The C++/Parser mapping
generates parser skeletons for data types defined in XML Schema. Using
these parser skeletons you can build your own in-memory representations
or perform immediate processing of XML documents.
XSD is available on AIX, GNU/Linux, HP-UX, Mac OS X, Solaris, and Windows.
Supported C++ compilers include: GNU g++, HP aCC, Intel C++, Sun C++,
IBM XL C++, and MS Visual C++. More information as well as precompiled
binaries for all supported platforms are available from
CodeSynthesis XSD/e - validating XML processing for embedded systems
CodeSynthesis XSD/e 2.0.0 released
Boris Kolpackov 2007-11-13
CodeSynthesis XSD/e is an open-source XML parser/serializer generator
for mobile and embedded systems. It provides event-driven,
stream-oriented XML parsing, XML serialization, XML Schema validation,
and C++ data binding while maintaining a small footprint and
portability.
Compared to general-purpose validating XML processors, the XSD/e-generated
code is 2-10 times faster while maintaining the lowest static and
dynamic memory footprints. For example, a validating parser executable
can be as small as 120KB in size. XSD/e is also highly-portable and can
be used without STL, RTTI, iostream, C++ exceptions, and C++ templates.
Supported embedded toolchains include GNU g++ 2.95.x-4.x.x, eMbedded
Visual C++ 4.0, and Visual Studio 2005 with Smart Devices support.
Precompiled binary distributions are available for GNU/Linux, Solaris,
and Windows host development platforms.
More information, documentation, source code, and precompiled binaries
are available from
DocFlex/XSD
DocFlex/XSD - a new template-driven XML Schema documentation generator
Leonid Ruby 2007-01-22
DocFlex/XSD is a new easy adjustable template-driven XML Schema
documentation generator.
It is able to generate professional quality documentation for any
W3C XML Schema(s) in the form of both multi-framed hypertext HTML
and printable RTF output.
For lots more information and downloads, [see]
EDIFIX 5.5R
New CCTS/UBL Data Modeling and Schema Generation Software
Sylvia Webb 2005-02-05
The scalable product line GEFEG EDIFIXR supports all processes involved in
the preparation of electronic business applications: . . . deriving compatible XML schemata from existing traditional EDI
guidelines. . .
The XML-UML EDIFIX is targeted for users who design professional business
messages with data modeling technology and as the next step represent and
further edit these data models in XML schemas. Available at
EditiX
EditiX 5.0 - XML Editor
Released
A. Brillant 2006-09-07
We are glad to announce the release 5.0 of your product EditiX : An XML
Editor and XSLT Debugger. This release includes about 50 improvements in
various application parts (Schema,DTD,FO,XSLT...). Prices starting at $22. Details:
Intel XML Software
Intel's
New XML Software Products
Thorsten Moeller, 2007-10-17
Intel is delighted to announce the release of the Intel® XML
Software Suite Beta. The Beta package provides high performance XSLT
processing, XPath, XML Parsing, DOM/SAX support, and XML Schema
Validation functionality for Java and C/C++ environments.
You can
register yourself to participate in the Intel® XML Software Suite
Beta program by visiting
Additional Intel® XML Software products and information can be found
at
JAXB Reference Implementation
JAXB 2.0 RI Early Access 3 Released
Kohsuke Kawaguchi, 2006-01-23
We are pleased to announce the availability of the 2.0 Reference
Implementation Early Access 3 release. This version corresponds to
the JAXB Specification proposed final draft, which has already posted
to the JAXB project some time ago.
The binary can be downloaded from the following location, as well as
online release notes.
JaxFront
JAXFront is a java technology to render electronic forms on multiple
UI channels (Java Swing, HTML, PDF) on the basis of an xml schema that
acts as a business model. The dynamically generated GUIs & Forms allow
the user a sophisticated way of editing XML data without being exposed
to the underlying XML technology.
Find an online demo and a free trial to download here:
www.jaxfront.com
JaxMe
JaxMe
0.5
Jochen Wiedmann 2005-08-10
The ws-jaxme team is proud to announce the availability of JaxMe 0.5.
JaxMe aims to become an implementation of the JAXB 1.0 specification.
Apache
JaxMe is a Java/XML binding framework and aims to become an
implementation of the JAXB specification.
for details on JAXB.
Compared to the version 0.4, the following features have been added:
- Mixed content is supported
- xs:extension is now properly mapped to Java inheritance.
Compared to the beta release, several important bugs have been fixed.
JaxMe is available on
JBind
A Java-XML databinding framework that supports the complete XML
schema with the exception of external parsed entities
, Stefan
Wachter, 2002-09-13.
Available at
JBind consists of a schema compiler that generates Java sources
corresponding to a supplied schema. In addition it contains a schema
validating XML parser. (All of the W3C schema test collection tests
were passed with the exception of some tests that seem to be
incorrect).
KLEEN
Graphical authoring tool KLEEN
Berthold Daum 2003-09-26
Asset Oriented Modeling (AOM) is an open conceptual modeling method
combining Higher Order Entity Relationship Modeling with Hedge-Regular
Grammars. The graphical tool KLEEN supports the creation and
validation of asset oriented models. It can generate code in various
formats such as XML Schema, Java, XMI, and SQL. KLEEN supports various
refactoring methods for models and generated code, including the
translations of non-deterministic structures into deterministic
schemata. Available at
LINQ to XSD
LINQ to XSD Preview
Alpha 0.1 released to the web
Ralf Lämmel 2006-11-27
LINQ to XSD is the code name of an incubation project that aims to provide .NET developers with support for typed XML programming on top of LINQ to XML. While the LINQ to XML programmer operates on generic XML trees, the LINQ to XSD programmer operates on typed XML trees -- instances of .NET types that model the XML types of a specific XML schema (XSD). LINQ to XSD can be used whenever you have an XML schema available, or you are willing to infer a schema from the XML data at hand. LINQ to XSD is integrated into Visual Studio; so you just tag an XML schema as an 'LINQ to XSD schema', build your project, and the automatically derived object model is then part of your solution -- just as if XML schemas were .NET types. The derived object model enforces various validation constraints imposed by the underlying XML schema.
See
Liquid XML 2008
Liquid XML Studio 2008 Released - A Freeware XML Development Environment
2007-10-23
Announcing the release of Liquid XML Studio 2008
a Freeware XML Development Environment.
Key features include
An Advanced Graphical Schema Editor
XML Editor, with auto-complete, syntax highlighting & validation
Web Service Browser, supports calling Soap services
XPath Expression Builder, visualise XPath expressions
Documentation Generator, HTML Docs from your XML schemas
Code Generation, C++, C#, .Net, Java, VB .Net & VB6 (trial)
Download available from
NetBeans Schema support
Chris Webster 2006-06-25
The XML schema tools available in the NetBeans Enterprise Pack 5.5
Early Access release allow you to visualize and edit XML schemas. The
XML schema tools focus on complex information display and real-world
use issues (for example, scalable visualization and editing of
massive XML schemas). In addition, the XML schema tools reduce the
complexity of creating and editing XML schemas, thus allowing someone
who is not a schema expert to create and modify XML schema and other
XML documents. Using the XML schema tools, you can reference external
schemas and run advanced queries in the Analysis view.
Using XML schema functionality, you can:
Visualize and edit an XML schema in a scalable fashion using
the Schema view
Edit a schema via an abstract instance view which provides an
editable visualization of the instance document structure
Query and Visualize the Schema
Perform refactoring across XML Schema, WSDL, and BPEL
Netbeans Enterprise Pack Download:
oNVDL
oNVDL version 20070517 adds an XSLT 2.0 implementation of NVDL dispatching
George Cristian Bina 2007-05-17
A new version of oNVDL is available from
oNVDL is an open source implementation of NVDL (Namespace-based
Validation and Dispatching Language) in Java, based on Jing. oNVDL
supports validation against XML Schema and also against Relax NG and
Schematron.
The new version adds an XSLT 2.0 implementation of NVDL dispatching and
fixes a couple of issues.
oXygen
oXygen XML Editor 8.2
George Cristian Bina 2007-05-08
A new version of oXygen XML editor is available from our website
Version 8.2 introduces a concept of validation scenarios. These
decouples the current file from the validation and allows you to specify
a list of files to be validated instead, as well as the processors to be
used. Thus it enables multiple validations in a single action and
validating modules in the context they are used from.
The new version adds support for ISO Schematron and that mans also
support for XML Schema with ISO Schematron embedded rules including
content completion inside annotation/appinfo for ISO Schematron and
validation of XML files against XML Schema with embedded ISO Schematron
rules.
Other important additions in version 8.2 are an XQuery debugger against
MarkLogic 3.2 native XML database, a large file viewer capable of
opening files larger than a Gigabyte, multi-line search/replace support,
a number of component updates and a lot of other additions.
To find the full list of new additions and more details please visit:
MSXML
Microsoft XML Core Services 4.0 SP1 (formerly known as MSXML)
Support of the World Wide Web (W3) Consortium final recommendation
for XML Schema, with both DOM and SAX.
Substantially faster XSLT engine. Our tests show about x4, and for
some scenarios x8, acceleration.
It is available free from
the MSDN XML site
exact location
).
PyXB
Python XML Schema Bindings 1.0.0
Peter A. Bigot 2009-11-18
PyXB version 1.0.0 is now available from SourceForge at:
PyXB (Python XML Schema Bindings; "pixbee") is a pure Python package
that generates Python source code for classes that correspond to data
structures defined by XMLSchema. In concept it is similar to JAXB for
Java and CodeSynthesis XSD for C++. The current release supports XML
Schema 1.0.
Version 1.0.0 is feature-complete and suitable for production
development where validation of incoming and generated documents is
desired.
Saxon-EE
Saxonica's
Saxon Enterprise Edition (Saxon-EE) includes a schema processor that
fully implements XSD 1.1. The processor supports:
compilation and verification of schema documents to generate a
schema component model
exporting the schema component model to a (proprietary) XML
representation
validation of instance documents
generating a validity report detailing all errors, in an XML
representation
generating a typed instance of the XPath/XQuery Data Model (XDM) in
which nodes are annotated with their schema-determined type
The processor can be executed from the command line, and APIs are
available for Java, .NET, C/C++, and PHP.
SchemaAgent
Altova SchemaAgent
2007
Erin Cavanaugh 2006-11-17
Altova SchemaAgent 2007 represents a new paradigm for modeling and
managing advanced schemas and their components in workgroups. It allows
you to view and manage XML Schema relationships in a visual way, and
construct complex schemas from distributed schema elements using
drag-and-drop functionality. In addition to XML Schema files, you can
also see XML Schemas used as sources or targets in Altova MapForce data
mappings.
See
for details.
Schema-Forms
Schema-Forms
- XML based eForms program released
KK Aw 2002-06-11
Multicentric Technology is pleased to announce the release of
Schema-Forms, an XML Schema based eForms program.
Schema-Forms generate an eForm based on the XML-Schema and the
constraints specified in the schema are applied during data entry.
The output can be transformed to HTML with an XSLT document.
A shareware version of the program is available from
Schematron Validator
Free Windows tool supports XML Schema with embedded Schematron
Eddie Robertson, Oct 25 2001
Although primarily a Schematron tool, it also "handles DTDs, W3C
XML Schemas, and Schematron schemas embedded in W3C XML Schemas",
available from
Topologi
Schema Viewer
SchemaViewer 1.0
, Frank Kilkelly 2002-11-08
SchemaViewer 1.0 is a Java application that virtually eliminates
tedious browsing of XML Schema documents by representing them as a
easily navigatable hierarchical tree. The application is a Swing-based
GUI. It is freely available to download at:
SQC
IBM XML Schema Quality Checker
. Achille Fokoue 2003-07-26
XML Schema Quality Checker (SQC) is a program which takes as input
documents containing XML Schemas written in the W3C XML schema
language and diagnoses improper uses of the schema language. Where the
appropriate action to correct the schema is not obvious, the
diagnostic message may include a suggestion about how to make the
fix.
Version 2.2 now available (
"fixes from
XML Schema 1.0 Specification Errata
(as of June
1, 2003) implemented; use of Xerces 2.4; SQC can now run on JRE
1.4"
Stylus Studio
Stylus Studio 2008 now available
Tony Lavinio 2008-12-12
Stylus Studio 2008 is now available for free trial download or
online purchase. Here are some of highlights:
WSDL Editor with embedded XML Schema editor
XML Publisher for writing HTML+CSS or XSL:FO+PDF
Multiple XML Schema validation engines included
Editing support for gigabyte-sized files
Bundled with DataDirect XML Converters 3.1 including support for
HL7 (new), EANCOM, EDIFACT, IATA, and X12
Bundled with DataDirect XQuery 3.1
You may download a free evaluation copy from
Overview of XML Schema support in Stylus studio:
Visual Schema
Visual XML Schemas
Siva Dirisala 2008-01-06
Even though many of the XML Schemas are meant for functional users so
that
they can design new systems or map existing systems to be standards
compliant,
their complexity makes it difficult for these users to study them. Even many

software developers have difficulty understanding the XML Schemas due to
their
complexity. Visual Schema addresses this problem by presenting the XML
Schemas
as familiar and easily navigable html forms, typically found in enterprise
business applications, that help the users easily understand the structure
of
an XML document.
Serveral open standards such as OAGIS and publicly available web
services
such as Amazon Web Services are available as Visual XML Schemas
at
XBinder XSD to C/C++ schema compiler
XBinder XSD to C/C++ schema compiler
Ed Day 13-Dec-2005
XBinder is an XML Schema to C/C++ Data Binding Tool. Given an XML schema or WSDL definition, it will produce
C or C++ code that consists of type definitions and encode/decode functions. This provides a complete Application
Programming Interface (API) for working with all of the message definitions contained within an XML schema
specification.
XBinder supports all types included within XML schema including complex and simple content and substitution
groups. Also supported is include and import to allow schemas to be modularized. Some large schemas that have
been compiled cleanly include UBL, FIXML, FpML, and CSTA.
Further details including a free evaluation download can be found at
XBuilder
Announcement for the release of XBuilder
Shagun Grover
2002-02-05
The much awaited product XBuilder 1.1 - the schema builder has been
released. The Schema Builder is so designed that all the base
information regarding the Schema entities is displayed in a
hierarchical format. In addition, the corresponding XML code for the
individual entity gets automatically generated without user
intervention. The 30 use trial version of XBuilder [has disappeared as of 2007-01 -- any info to ht@w3.org, please].
xchecker
xchecker - XPath 2.0 embedded in XML Schema
Andrew Welch 2007-06-03
xchecker is a little utility I've written that (amongst other things)
allows you to embed XPath 2.0 in XML Schema:
The xchecker processor implements the JAXP schema interfaces, using
the underlying JAXP schema processor to do the validation.
You can check anything you can you can write an XPath for.
Xerces-C(++)
Xerces-C++ 2.8.0 released
Boris Kolpackov 2007-09-03
I am pleased to announce the availability of Apache Xerces-C++ 2.8.0.
Xerces-C++ is an open-source validating XML parser written in a
portable subset of C++. It provides DOM (level 1, 2, and certain
parts of level 3), SAX, and SAX2 APIs and supports validation of
XML documents against DTD and XML Schema.
This release is primarily focused on bug fixes, optimizations and
build system improvements. For the complete list of changes in
this version see the release information page:
The source code archives and precompiled libraries are available
from the download page:
Xerces-J
Xerces 2 Java Parser released
lmartin@ca.ibm.com 2001-12-20
This release now contains, among other features, full XML Schema
support (with complete constraint checking). XML Schema support was
redesigned and reimplemented in Xerces 2.
For more information, pls see the Apache web site:
XML Architect
Sysonyx's xmlArchitect
, Bryce Nielsen, 2002-04-26
xmlArchitect is an intuitive XML Schema editor, displaying a
realtime treeview mockup of what the Instance XML Document should look
like while editing the XML Schema. Also, direct edits can happen
inside this XML Tree and the XML Schema will update itself to reflect
the new XML structure.
Product Information is at [
]; Downloadable at [
XML Beans
Apache XMLBeans v2.1.0 available
Radu Preotiuc-Pietro 2005-12-09
The Apache XMLBeans team is pleased to announce the availability of
Apache XMLBeans v2.1.0. XMLBeans is a complete XML processing solution
for Java, including XML Schema support, XML Schema to Java binding,
lightweight fast Infoset access, XML Schema information access, DOM, SAX
and StAX implementations, XPath/XQuery integration. Everything is
available in a package that is easy to use and fully integrated,
allowing the user to seamlessly switch between all APIs.
Binary downloads for Windows and Unix are available from
[For those familiar with XMLBeans V1, see
for a list of changes and additions in
XMLBeans V2]
XML Datatypes Library
Sun's
XML Datatypes Library
Kohsuke KAWAGUCHI May 04 2001
XML Datatypes
Library
is a Java implementation of W3C XML Schema Part 2. It can
be used from any Java code to
validate strings with datatypes
convert strings into Java objects
XMLEspresso
XMLEspresso 4.0 Announcement
Ajay Votra 2003-07-08
XMLEspresso 4.0 is a full featured, J2SE 1.4.x based XML Editor
available for evaluation (unlimited period) and purchase at:
XMLEspresso 4.0 supports creation of W3C XML Schemas and XML
documents based on W3C XML Schemas.
XMLFox
XMLFox Advanced XML/XSD editor
Russ Sabitov 2005-03-14
XMLFox Advance is an intuitive xml and xml schema (XSD) editor, allows
the xml developer to create schemas and show a visual representation
of what the xml document will look like for that schema.
XMLFox Advance supports Validation an XML against an XSD schema.
You can find more info about the tool at the following website:
XML Infoset Browser
XML Infoset Browser for Java
, Ed Merks, 2002-09-18
We are very pleased to announce the availability of
org.eclipse.xsd, the XML Schema Infoset Model for Java, at Eclipse:
org.eclipse.xsd
is a Java reference library that
implements the XML Schema Infoset Model as described in the W3C XML
Schema specifications. We believe that it will be useful for any code
that examines, creates, or modifies XML Schemas (standalone or as part
of other artifacts, such as XForms or WSDL documents). The library
provides an API for manipulating the components of an XML Schema, 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.
XML Nanny
XML Nanny
, Todd Ditchendorf, 2005-12-16
I've developed a free (as in beer) Cocoa XML Schema-related developer
tool for Mac OS X 10.4 Tiger called XML Nanny:
XML Nanny is a graphical tool for checking XML documents for well-
formedness or validity against a DTD or W3C XML Schema. XML Nanny can
validate documents either locally or over the network.
XMLObjective
new XMLSchema editor and binding tool
Aidan Russell 2005-07-21
The tool
provides a powerful XMLSchema editor, with binding classes generation in
C++, Java and RDBs. Editing og XML and XSLT is also supported.
The product URL is
www.xmlobjective.com
A free version is also provided supporting basic XMLSchema editing and validation.
XMLPad
WmHelp XmlPad
Semyon A. Chertkov 2006-09-22
I'm glad to announce availability a new freeware version of WmHelp XMLPad.
It's now based on the Expat parsing engine and has full support for XML Schemas.
XML Schema editor with color syntax highlighting, line numbers,
element range navigation, and context-dependent source assistant
wizard. Available absolutely free (freeware) without any
limitations. It does not contain any AdWare or SpyWare.
XML Schema Object Model
Xml Schema Object Model (in the System.Xml.Schema namespace)
Microsoft 2002-06-03
System.Xml.Schema namespace contains the XML classes that provide
standards-based support for XML Schemas definition language (XSD)
schemas. This namespace is part of the .Net Framework SDK
and implements the XML Schema Part 1: Structures
and the XML Schema Part 2:
Datatypes specifications.
XML Schema Validator
Online W3C XML Schema Validator
, Microsoft, 2002-10-11
An online HTML form-based interface for validating schemas (XSD & XDR)
and instance documents using the System.Xml.XmlValidatingReader in the
.NET framework [appears to have been withdrawn as of 2006-12]
XML ValidatorBuddy
XML ValidatorBuddy
is commercial software for the Microsoft Windows platform for editing and validating
large XML and JSON documents.
XML::Validator::Schema
XML::Validator::Schema 1.03
This Perl module allows you to validate XML documents against a W3C XML
Schema. This module does not implement the full W3C XML Schema
recommendation, but a useful subset. See
the SCHEMA SUPPORT section in the module documention.
You can install XML::Validator::Schema from CPAN, or download it
from SourceForge:
xnsdoc
xnsdoc 1.2 - XML Schema
documentation generator
buldocs 2006-09-19
xnsdoc 1.2 is now available, a professional tool to generate documentation
of W3C XML-Schema in a JavaDoc-like visualization.
xnsdoc supports all common schema design practices like chameleon,
russian doll, salami slice, venetian blind schemas or circular schema
references.
xnsdoc can be used from the command line, as an Apache Ant Task, as an
Apache Maven Plugin, as an eclipse plugin or integrated as a custom tool in
many XML development tools.
Release 1.2 fixes all known bugs and comes with improved integration into
eclipse, Apache Maven and Apache Ant.
You can download a free trial version at
XS3P
XS3p is a
schema documentation generator developed by Zar Zar Tun at
DSTC. Basically, it is an XSLT stylesheet that will generate an XHTML
document from an XSD schema. Some of its cool features are:
It provides links that allow the user to jump to the documentation of schema components that are referenced.
It provides a view of schema components' constraints as a sample XML instance.
For global type definitions, it shows the super- and sub- types of the type definition.
For global element declarations, it shows the substitution groups that the element declaration heads or belongs to.
It can sort schema components by type and name.
It has a glossary section which explains some XML Schema terminology.
DSTC no longer exists, and the original homepage for this tool is gone. Both
oXygen
and
Stylus Studio
appear to use it, and search engines can
locate copies of the stylesheet and, in some cases, the license without which it
cannot legally be used.
xsd2cpp
XmlPlus xsd2cpp
is an open-source tool which provides XML data
binding for C++ through XML Schema.
The xsd2cpp tool is a C++ code generator. The xsd2cpp tool when invoked on
an input XML Schema, generates C++ classes(headers) mapped to the input XML
Schema components. Alongside, wherever needed, it generates implementation
files(.cpp) for the generated C++ classes. Also, a sample
application(main.cpp) is generated to demonstrate how an application could
consume the generated C++ source files.
XSDBench XML Schema Benchmark
XSDBench XML Schema Benchmark 1.0.0 released
Boris Kolpackov 2006-10-18
XSDBench is an open-source W3C XML Schema benchmark that compares the
performance of validating XML parsers. It measures validation throughput,
statically-linked test executable size, and, where possible, peak heap
and stack memory usage during parsing. The following parsers are
supported in the latest release:
Apache Xerces-C++
CodeSynthesis XSD
Gnome Libxml2
Microsoft XML Core Services (MSXML)
Oracle XDK
More information on the benchmark architecture, results, as well as
the benchmark source code are available from
XSD Inference Tool
XSD from examples
, Microsoft, 2002-12-14
We would like to announce the availabitlity of Microsoft XSD Inference
Beta 1 tool. The Microsoft XSD Inference utility is used to create an XML Schema definition language (XSD) schema from an XML instance document. When provided with wellformed XML file, the utility generates an XSD that can be used to validate that XML file. You can also refine the XSD generated by providing the tool more well-formed XML files.
You can get the binaries and documentation from
XSD/e
XSD/e 1.1.0 - validating XML parser generator for embedded systems
Boris
Kolpackov 2007-09-20
CodeSynthesis XSD/e is an open-source XML parser generator for mobile and
embedded systems. It provides event-driven, stream-oriented XML parsing, XML
Schema validation, and C++ data binding while maintaining small footprint and
portability.
Compared to general-purpose validating XML parsers, the XSD/e-generated
parsers are 2-10 times faster while maintaining the lowest static and dynamic
memory footprints. For example, a validating parser executable can be as small
as 120KB in size. XSD/e is also highly-portable and can be used without STL,
RTTI, iostream, C++ exceptions, and C++ templates.
Supported embedded toolchains include GNU g++ 2.95.x-4.x.x, eMbedded Visual
C++ 4.0, and Visual Studio 2005 with Smart Devices support. Precompiled binary
distributions are available for GNU/Linux, Solaris, and Windows host
development platforms.
More information, documentation, source code, and precompiled binaries are
available from
xsddoc
xframe - xsddoc 0.8-beta released
, Kurt Riede, 2005-05-22.
xsddoc is an Open Source documentation tool for W3C XML Schema based on
XSLT. With xsddoc you can generate documentation of your XML Schema in a
JavaDoc like visualisation.

xsddoc can be used from the command line, as an Apache Ant Task or as an
Apache Maven Plugin or integrated as a custom tool in StylusStudio or XMLWriter\
You can download xsddoc
XSDDoc
XML Schema Documentation software
, Thomas Chen, 2003-10-15
XSDdoc is an XML Schema documentation software that transforms plain XML
files into cross-referenced, hyperlinked HTML documents and provides a
detailed functional report for each schema component. XSDdoc makes it
effortless to navigate through a large collection of XML vocabulary.
For a detailed product guide of XSDdoc 2.0, please visit our web site at
xsdregex
XSD
regex-> Java 1.4 regex
, James Clark 2002-04-30
I've written some Java code that translates from the syntax of XSD
regexes to the syntax of JDK 1.4 java.util.regex regexes. The source,
binaries and documentation can be downloaded from: [
I am releasing it under a very liberal license (the BSD license),
which makes it free even for commercial use.
XSD-to-C++
xsd - a W3C XML Schema to C++ translator
Boris Kolpackov 2005-10-08
xsd
is a cross-platform, open source W3C XML Schema to C++
translator. It supports two C++ mappings: in-memory C++/Tree and
event-driven C++/Parser.
The C++/Tree mapping consists of data types that represent the given
vocabulary, a set of parsing functions that convert XML instance
documents to a tree-like in-memory data structure, and a set of
serialization functions that convert the in-memory representation
back to XML.
The C++/Parser mapping provides parser templates for data types
defined in XML Schema. Using these parser templates you can build
your own in-memory representations or perform immediate processing
of XML instance documents.
Details and download from
XSDValid
New
XML Schema Validation Engine
Hussein Shafie 2002-01-09
The xsdvalid distribution contains the XML Schema
validation engine that will be integrated into the
future XMLmind XML Editor product
).
This engine has been made available to schema and DTD
authors in the form of 3 command-line tools:
xsdvalid: Checks an XML schema for validity. Checks an XML
document for validity against an XML schema.
dtdvalid: Checks a DTD for validity. Checks an XML document
for validity against a DTD.
dtdtoxsd: Converts a DTD to an XML schema.
The xsdvalid distribution can be downloaded from
] .
XSU
XSU, an Open Source upgrade transform from the 20001024 to the 20010330
version; free
web-form
access
, from University of Edinburgh/W3C (beta);
XSV
XSV, an Open Source XML Schema Validator, with
web-form access
from
University of Edinburgh/W3C (beta) (
Status
page
Free download of
self-installing
version
of XSV for WIN32.
Usage
LOGML
(Log Markup Language) Draft Specification and Schema
John Punin Jun
29 2001
OpenGIS Consortium, Schema for
Geography Markup Language (GML)
2.0.
Three schema documents are normative:
feature.xsd defines an XML encoding for the OGC/ISO TC211 "Feature"
model for geospatial data,
geometry.xsd defines geometry elements d into
feature.xsd
xlinks.xsd is a schema for XLinks (actually a placeholder until a
definitive version is provided by W3C) and is also used by
feature.xsd
Guidelines for developing usable application-specific schemas are
included as a normative chapter of the specification. A recent vote by
the Technical Committee of OGC has elevated GML 2.0 to the status of
"adopted technology". (
update
28 Jun 2001
XGMML (eXtensible Graph
Markup and Modeling Language)
15 Mar 2000 John Punin, Mukkai Krishnamoorthy, Dept of Computer Science
RPI (
update
25 Jun 2001
Experimental
schema for XSLT
1.0
, by Asir Vedamuthu of webMethods, Inc. "This schema is subject to
change and will contain the schema using the current syntax, Proposed
Recommendation (PR) or Recommendation XML Schema Definition Language
(XSDL). We plan to update this schema using PR XSDL ASAP."
An XML Schema for
the XML Specification doctype
by Norm Walsh, 12 October 2000.
Several dozen examples in Roger L. Costello's
XML Schema Tutorial
XML Digital Signatures
schema
in the
10
May 2000 draft
AbiWord
schema
update
Oct 27 2000
... some
XML Schema hacking
March 2000 by Dan Connolly
a stab
at an XML Schema for RDF
Rick JELLIFFE 26 Feb 2000
revision
by Connolly)
... If you have a schema you would like to see listed here, or if you
have a set of test cases for use in software development, please send an
announcement to
xmlschema-dev
. (If you are
impatient, you may also wish to send mail to
Michael Sperberg-McQueen
calling his
attention to your email on xmlschema-dev and suggesting your materials be
added to this list.)
Presentations, guides, and tutorial materials
In addition
XML Schema Part 0:
Primer
, you may be interested in:
Guide to Versioning XML Languages using XML Schema 1.1
, ed. David Orchard.
XML Schema
Tutorial
, by Roger L. Costello, September 2001
The XML
Schema Specification in Context
by Rick Jelliffe, Academia Sinica Computing Centre
2001-01-10
compares XML Schema with XML DTDs, SGML DTDs, HyTime, and perl regular
expressions
The Current State of the Art of Schema Languages for XML
Rick Jelliffe, paper, XML Asia Pacific 2001, Sydney, Australia.
A characterization and comments on schema languages for
XML at the end of 2001
Course
"Programming XML in Java" Web site
by John Punin, Autumn, 2001
XML Schema, a
brief introduction
, by Ian Stuart, October 26, 2001
XML Schema tutorials materials:
slides
additional
materials
by Henry Thompson at
XML
99
in Philadelphia (a
GCA Conference
Using W3C XML Schema
by Eric van der Vlist, October 17, 2001
Schemas
for XML
by Norman Walsh, July 1, 1999
Kal Ahmed has created topic maps from the XML Schema family of
specifications. The HTML-ized result is now up at
Danny Vint has created quick reference cards, available at
Resources
Schema for schemas
If you're looking for the schema and/or DTD for schema documents, they are here:
Schema document for schema documents
DTD for schema documents
(driver
file; includes also
datatypes.dtd
RDDL document for the namespace
Test collection
The W3C XML Schema test collection can be downloaded from
Note that there is no longer an XML Schema Working Group to monitor issues or pull requests.
Test suite overview page
Test suite FAQ
Test suite framework
Test suite maintenance process
revised original test collection (6.73 MB)
2nd edition test collection (2.76 MB)
As part of the process of getting XML Schema to Recommendation, a
draft
Type Library
is available, with definitions of complex types
attempting to cover many common needs, including general text content,
arrays, complex numbers and dimensioned quantities.
Serialization of the PSVI
Richard Tobin and Henry S. Thompson have posted
a first cut
at an XML serialisation of the (PSV) Infoset
Specifications and Development
XML Schema Part 0: Primer
XML Schema Part 0: Primer is a non-normative document intended to provide an easily readable description of the XML Schema facilities, and is oriented towards quickly understanding how to create schemas using the XML Schema language. XML Schema Part 1: Structures and XML Schema Part 2: Datatypes provide the complete normative description of the XML Schema language. This primer describes the language features through numerous examples which are complemented by extensive references to the normative texts.
XML Schema Part 1:
Structures
XML Schema Part 2:
Datatypes
XML Schema: Component
Designators
Proposed mechanisms for referring to individual
components from an XML Schema.
Guide
to Versioning XML Languages using XML Schema 1.1
Discusses issues in defining languages so as to be robust in the
face of changes, and gives examples of useful constructs in XML Schema
1.1.
Processing XML 1.1
documents with XML Schema 1.0 processors
May 2005: Working Group Note
Feb 1999: W3C Note:
XML Schema
Requirements
List of
versioning-related
resources
working group:
XML Schema
feedback:
www-xml-schema-comments
discussion:
xmlschema-dev@w3.org
xml-dev@lists.xml.org
comp.text.xml
Last Call comments and their disposition:
HTML
version
XML version
(with stylesheet for IE5)
Developments in the community
Testing project at SourceForge
a testing
project at sourceforge
started July 2000 by Curt Arnold
XML Schema User Experience
Workshop, 21-22 June 2005
The W3C workshop on XML Schema user experiences gathered concrete reports
of user experience with XML Schema 1.0, and examined the full range of
usability, implementation, and interoperability problems around the
specification and its test suite.
The
Call for
Participation
and
program
have many of the details.
Minutes and a chairs' report are expected to be made public real soon now.
Submissions
Input into the development of XML Schema:
Jan 2000:
Datatypes for DTDs (DT4DTD)
1.0
Sep '98
Schema for Object-oriented
XML
submitted to W3C
Jan '99:
Document
Definition Markup Language (DDML) Specification, Version 1.0
submitted to W3C
Jan 1998
XML Data
submitted to
W3C
C. M. Sperberg-McQueen
and
Henry Thompson
Created April 2000
$Revision: 1.160 $ $Date: 2018/03/09 01:48:56 $
W3C
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Keio
), All Rights Reserved.

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