xml for begginers by ash

8/13/2019 XML for Begginers by ASH

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XML


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OVERVIEW

What is XML?

Extensible Markup

Language

Many pieces in the XML

puzzle

Very fast moving Firstback to basics.

XMLSchem

a

SOA

P

Name

space

XML

XSLT

XQuery

HTM

L

XPointerXlink


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HOW THE INTERNET WORKS.

Web Clients

(Browser) Web Server

Get me that text file

OK here it is


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WHAT IS EXTENSIBLE MARKUP LANGUAGE?

NOT a markup language

Meta-markup Language

Set of very simple rules XML provides a uniform method for

describing and exchanging structured data

Describes structure and semantics, notformatting


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French English German ..

1. Use letters of alphabet.

2. Spaces between words.

3. Read from left to write.

..

Meta Language


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SVG WML MathML ..

1. Tags must not overlap

2. Tags case-sensitive

3. Must have root tag

XML Specification


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THE XML RULES.

1. Single, unique rootelement

2. Matching open/closetags

3. Consistentcapitalisation

4. Correctly nestedelements (no

overlapping elements)5. Attribute values

enclosed in quotes

6. No repeating attributes

in an element

3Months.comWeb Development

Wakefield st

Wellington

New Zealand

Well Formed


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HEALTHCARE DATATYPES

Jones

Susan

Samantha

Jr.

Ms.

000-11-2233

Ms. Susan Samantha

Jones Jr.


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000112233

SmithAmandaDr.


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HEALTHCARE SCHEMA


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XML IN HAKIM

There is a Lesion

with Erythematic

active edge


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XML IN HAKIM

Behind the scene is XML (Extensible MarkupLanguage)

Tagging is applied to content. (coded content)


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XML IN PRACTICE

XML ((FBS3. FBSCholesterol .

TagTagAttribute .


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Ahmad Alavi that is the first son of

Mohammad gholi

1389/03/02

123


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HISTORY OF XML

Standard Generalised Markup Language

Been around since early 90s

XML is a sub-set of SGML (SGML-lite) XML has smaller and simpler syntax

SGMLs development provides the

foundation for XML XML is therefore not bleeding edge


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WHY XML IS SO POWERFUL

Provides international, vendorindependent standard for describinginformation

Any informationstructured orunstructured

TCP/IP

HTTP

XML


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XML MARKUP LANGUAGES/VOCABULARIES

Remember XML is a meta-language

Anybody can create their own language

Why would you want to?

Each language designed for a specific

purpose.


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MATHEMATICAL MARKUP LANGUAGE (MATHML)

x2 + 4x + 4 =0

x2

4

x

4


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SYNCHRONIZED MULTIMEDIA INTEGRATION

LANGUAGE (SMIL)

This appears for one second and goes away

This appears after one second, remains visible for one second and goesaway

This appears after two seconds, remains visible for one second and goesaway


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VECTOR MARKUP LANGUAGE


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WIRELESS MARKUP LANGUAGE

This is the first card.

This is the second card.


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HYPERTEXT MARKUP LANGUAGE (HTML)

The Title

This is a piece of HTML

Or is it??

Next version of HTML = XHTML


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XML SCHEMAS AND DTDS

XML is about communication

Need to speak the same language

Schemas/DTDs describe the vocabulary of

the language

i.e. what tags are used and how they can be

organised

Schemas will replace DTDs


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AN EXAMPLE SCHEMA

Studend Loan Problems

20/7/01

Bla Bla Bla


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AGENDA

Case study background

Choosing a DTD/Schema

Creating XMLthe options

Storing XMLthe options

Presenting XMLthe options

Solution BenefitsDemo


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CASE STUDY BACKGROUND

October 2001won contract to redevelop E-governmentwebsite (www.e-government.govt.nz)

Business requirements Usual stuff (accessible, usable etc)

Guidelines compliant (squeaky clean) Content must be made available in a standard HTML format.

Where information is provided in a proprietary format an alternativeHTML version must also be made available.

Cant just put it up as a PDF anymore

Simple publishing process

Future-proofed

Constraints Limited budget

Tight timeframe
http://www.e-government.govt.nz/http://www.e-government.govt.nz/http://www.e-government.govt.nz/http://www.e-government.govt.nz/


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TRADITIONAL OPTIONS

Static site

Did not give simple publishing process for

unskilled people

Content Management SystemStore information in RDBMS

Not good for document centric applications

Cost, timeframe, simple workflow requirements


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The challenge

To create a system that allows non-technical

authors to publish to guidelines compliant HTML

(and eventually other formats) The solution

XML


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CHOOSING A DTD/SCHEMA

Make up your own

Dont reinvent the wheel!

Xml.org

We selected a subset of DocBook

Could handle all the information we needed to

store

Supported by a growing number of products

NZETC uses TEI


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CREATING XML THE OPTIONS

Use an XML editor

E.g. XML Spy, Xmetal, Framemaker etc

Allow you to create a document that conforms to

a specified DTD/Schema

Problem: everybody potentially an author

Convert Word documents to XML

Styles


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Word(using Styles)

HTML(Internet)

Anything you want!!

eBook

DocBook

XML

XSL-T for

convertion

Word is

authoritative

source


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XCON DEMO


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STORING XML THE OPTIONS

Relational database

Native XML Repository

E.g. Excelon, Tamino, Ipedo, Xindice

First generation products

At the time too immature/expensive

On the file system


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PRESENTING XML THE OPTIONS

Publishing to humans

Need to transform XML to a format appropriate forhumans

Physical printout of scope HTML obvious choice

XSL-T to transform XML to HTML

Not the only way to present to humans SMIL, SVG, MathML etcAudience must have software

What about publishing Raw XML?


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DEMO


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HEALTHCARE SCHEMA


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Jones

Susan

Samantha

Jr.

Ms.

000-11-2233


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000112233

SmithAmandaDr.


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ACTORS

xxx

Attending

Surgeon


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ENCOUNTER


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FORMS LANGUAGE

Transform into XHTML, WML etc.

Simple enough that M.D.s can design forms

Layout performed by XSLT

Customize to site by defaults.xml


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FORM GENERATION

Form.xml

Defaults.xml

Formgen.xsl

XML + XSLT => XHTML


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WORKFLOW

Form created

Transform into ASTM XML format

XHTML editing (opnote-edit.xsl)

Sign finished product

Render as XHTML for viewing, printing

email to Medical Records and Billing


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WORKFLOW

generate

edit

sign

Billing/EDI

repository


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SUMMARY

The XML Specification = Meta-language fordescribing XML Mark-up languages

XML Schemas (and DTDs) describe thestructure of a particular XML Mark-up

language XSL-T documents transform XML document

into another format (HTML, XML etc)

xml for begginers by ash

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