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3. – Lehrangebote – Lesson – Lecture –
XML-Overview, Application example, XML Tools, new trends-developments.
Entrepreneurs, professionnels and managers.
About XML.
• What is XML ?
• What is it for ?
• What is new in XML ?
Almost all drafts, which the XML uses, are not new.
• From where does this acceptance come ?
XML offers the possibility to structure data so that they correspond to rules, that it may determine itself.
In this manner we determine designated structured data as documents.
An XML - document constructs itself out of so-called ELEMENTs.
These ELEMENTs have names that can be recognised during the document developments.
These ELEMENT names can be seen as description data both directly to persons to be able to read and understood them and also to search programmes to indicate the adequate meaning of them.
There-with a potentially better quality could be reached during the searching content process through the internet.
Nevertheless the results of the XML - format of documents are not so much alone.
The user orientated formats which are noted in XML
can gain actual profit out of this application.
In this sense, XML is solely one basic technology.
If you choose XML as a basis for a project, you will find an access
to a large and growing aggregation of tools.
And, because XML is as a W3C- development license free product, you can construct your own
characteristic software without paying someone something.
The large and growing support means that you are not tied also to a single bidder.
Objective: To get an overview about the XML (family of techniques), acquire capacity to work with XML.
XML - Extensible Markup Language (XML) 1.0 - is a family of techniques: – KEYWORDS –
Today - Architecture of the WORLD WIDE WEB
Tim Berners-Lee : – Design Issues – Architectural and philosophical points
W3C Recommendation 15 December 2004
The World Wide Web uses relatively simple technologies with sufficient scalability, efficiency and utility that they have resulted in a remarkable information space of interrelated resources, growing across languages, cultures, and media.
• In an effort to preserve these properties of the information
space as the technologies evolve, this architecture document discusses the core design components of the Web.
• They are identification of resources, representation of resource state, and
the protocols that support the interaction between agents and resources in the space.
We relate core design components, constraints, and good practices to the principles and properties they support.
Copyright
© 2002-2004 W3C
® World Wide Web Consortium
(
MIT Massachusetts Institute of Technology,
ERCIM
European Research Consortium for Informatics and Mathematics,
Keio University Japan ).
All Rights Reserved. W3C liability,
trademark,
document use and
software licensing rules apply.
W3C's (World Wide Web Consortium) mission is:
– To lead the World Wide Web to its full potential –
by developing protocols and guidelines that ensure long-term growth for the Web.
W3C Develops Web Standards and Guidelines.
In order for the Web to reach its full potential, the most fundamental Web technologies must be compatible with one another and allow any hardware and software used to access the Web to work together.
W3C refers to this goal as Web interoperability.
By publishing open (non-proprietary) standards for Web languages and protocols,
W3C seeks to avoid market fragmentation and thus Web fragmentation
Tim Berners-Lee , W3C Director and inventor of the World Wide Web.
Tim Berners-Lee
and others created W3C as an industry consortium dedicated to building consensus around Web technologies.
Mr. Berners-Lee, who invented the
World Wide Web in March 1989 while working at the
European Organization for Nuclear Research
(CERN),
has served as the W3C Director since W3C was founded, in 1994.
Weaving the Web
by Tim Berners-Lee
with Mark Fischetti.
The original design and ultimate destiny of the WWW, by its inventor.
Documents available from the Web or from any digital representation constitute a significant SOURCE of KNOWLEDGE to be represented, handled and queried.
Ca. ... hour.Deeper involvement through private conversation is possible.
Reference:The advisor Dipl. Ing. Johann Magori - CAE system specialist - member of the engineer chamber in Hessen
The following two quotes were denigrated in a recent article:
1) There really is no difference between a document and a database.
2) XML data is fundamentally different from relational data
[relational structure] can led to inefficiencies in queries and retrievals.
While both of these claims were denounced,
they both do contain substantial truth.
This article will consider to what extent they are true.
It will also present XML as a reasonable data model with characteristics of special interest.
Natural language is more general, expressive and difficult than relational databases. Nevertheless, texts certainly do store data and
do require a model (background knowledge) to be information try reading in a foreign language or in an unknown theoretical field in
your own language.
Since natural language is a proliferating machine-readable data source, thanks to the web, it is of
legitimate interest as a data object. Unfortunately the problem of extracting data from general text is not solved, perhaps not even solvable.
XML offers an approach in which the users of language can mark the significant factual content of text.
The raison d’etre of XML is marking, not data management. However to mark content implies that some level of data management must be inherent. Moreover the simple, hierarchical structure of XML, the expressiveness of tags and the flexible range of constraints available through the DTD (a BNF equivalent) creates a data model adaptable to many sources text, formula, database or programmatic data.
This article proceeds by examining Pascal’s definition of data model. A simple data model for XML is given and is examined against Pascal’s definition of and requirements for a data model. Some characteristics unique to XML are shown and an argument is made that it is simple in a meaningful sense.
Contact Information:
K. R. Riggs
CIS Department Florida A&M University
Tallahassee, FL 32307
<riggs@cis.famu.edu>
Florida A&M University. Dr. Riggs
In this tutorial I present what I think are the essential concepts of XML, and hopefully will convince you that despite the hype, XML is important for presentation, exchange, and management of information.
(André Bergholz)The combination of hypertext and a global Internet started a revolution. A new ingredient, XML, is poised to finish the job.
Representing and organizing information in libraries has a long tradition of using rules and standards.
As the very first standard encoding format forbibliographic data in libraries, MAchine Readable Cataloging (MARC) format is being joined by a large number of new formats since the late 1980s.
The new formats, mostly SGML/HTML based, are actively taking a role in representing and organizing networked information resources.
This article briefly describes the historical connection between MARC and the newer formats for representing information and the current development in XML applications
that will benefit information/knowledge management in the new environment.
STEP can be used to exchange data between CAD, Computer-aided manufacturing, Computer-aided engineering, Product Data Management/EDM and other CAx systems. STEP is addressing product data from mechanical and electrical design, Geometric dimensioning and tolerancing, analysis and manufacturing, with additional information specific to various industries such as automotive, aerospace, building construction, ship, oil and gas, process plants and others.
STEP is developed and maintained by the ISO technical committee TC 184, Technical Industrial automation systems and integration,
sub-committee SC4 Industrial data.
Like other ISO and IEC standards STEP is copyright by ISO and is not freely available........
PAN EUROPEAN - INTERCONNECTED KNOWLEDGE POOLS - ENGINEERING NETWORKING. (MS-Word Format)
A federated STEP based - Systems Engineering -
Semantic Web based Services/Semantic Community Knowledge Web Portals EU/SME.
Digital Library and Grid technology "e-Learning" :
" COOPERATE PLUS" (MS-Word Format)
"LEONARDO DA VINCI" Community Vocational Training Action Programme -
in the field of IT & C and CAD/CAM for young professionals to develop teleworking projects.
- Private information is practically the source of every large modern fortune -
" Oscar Wilde "
The European Community has defined a new strategic goal:
- to become the most competitive and dynamic knowledge-based economy in the world. -
"European Council - March 2000-Lisbon / Barcelona 2002"
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