1. XML Technologies Surekha Akula
G l a r i m y
XML Technologies
Surekha Akula
Glarimy Technology Services, Bangalore, India |
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2. Agenda G l a r i m y © 2013, Glarimy. All rights reserved.
Little more deeper into XML
Purpose of XML
Comparing with other technologies
XML Eco System
XML Primer
Applications of XML
What is XML
The Process
What is not XML?
Agenda
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3. About Me G l a r i m y © 2013, Glarimy. All rights reserved.
Surekha Akula
Software Developer by profession
Trainer by evocation
Academics
B.Tech in Computer Science
Experience
5 years
Infosys & Fidelity National Information Systems
Expertise
BSFI, Web Technologies, Java/J2EE
On the Net
Facebook: Surekha Scintilletions
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4. About Glarimy G l a r i m y © 2013, Glarimy. All rights reserved.
Glarimy Technology Services
Technology Consulting
Corporate Training
Weekend Executive Workshops
Learning & Assessment Services
Principal Consultant
Krishna Mohan Koyya
Technology Expert, Trainer & Author
15 Years of experience under belt
More than 1000 training days in the last 5 years
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5. Let’s start G l a r i m y © 2013, Glarimy. All rights reserved.
Little more deeper into XML
Purpose of XML
Comparing with other technologies
XML Eco System
XML Primer
Applications of XML
What is XML
The Process
What is not XML?
Let’s start
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6. What is XML? G l a r i m y © 2013, Glarimy. All rights reserved.
XML stands for EXtensible Markup Language
XML is a markup language much like HTML
XML was designed to carry data, not to display data
XML tags are not predefined.
XML is designed to be self-descriptive
XML is a W3C Recommendation
XML DO NOT DO ANYTHING
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7. XML Primer G l a r i m y © 2013, Glarimy. All rights reserved.
XML can be interpreted programmatically
XML documents can be parsed all most by using any programming language
XML is a W3C standard
Open to everyone to use
Open for everyone for learning
No need to pay licenses
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8. XML Primer G l a r i m y © 2013, Glarimy. All rights reserved.
XML is used for documenting data in pure text format
It can be viewed in any text editor
No need of sophisticated software to view your data
It can be shared on internet, easily
No need of special network technology
Any general purpose protocol like FTP, HTTP can carry the XML documents
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9. Purpose of XML G l a r i m y © 2013, Glarimy. All rights reserved.
XML Simplifies Data Sharing
XML is Used to Create New Internet Languages
XML Simplifies Data Transport
XML Simplifies Platform Changes
XML Makes Your Data More Available
XML Separates Data from HTML
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10. G l a r i m y
An Example
<book> <isbn> </isbn> <title>XML Primer</title> <publisher> <name>ABC Publications</name> <phone> </phone> </publisher> </book>
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11. XML is not … G l a r i m y © 2013, Glarimy. All rights reserved.
A replacement for HTML
but HTML can be generated from XML
A presentation format
but XML can be converted into one
A programming language
but it can be used with almost any language
A network transfer protocol
but XML may be transferred over a network
A database
but XML may be stored into a database
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12. Comparing with Excel G l a r i m y
XML is similar to Excel
Both deal with data
Both can be used to hold data
XML is not similar to Excel
MS-Excel is required to view the data in xls files
XML needs just any text editor
XML can be shared on any operating system
MS-Excel needs Windows O/S
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13. XML is not similar to HTML
G l a r i m y
Comparing with HTML
XML is similar to HTML
Both are markup languages
Both uses tags
Both produce text based documents
XML is not similar to HTML
HTML is to SHOW data on browsers, XML is to ORGANIZE data for general purpose
HTML has its own set of pre-defined tags, XML do not
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14. XML Eco-system G l a r i m y © 2013, Glarimy. All rights reserved. XML
Technologies to define XML tags and validate XML documents against the definitions.
DTD/XSD
A language to transform data from one XML format to another format
XSL
Technologies to address elements in an XML document
XPATH/XQUERY
DOM Software components to parse XML documents
DOM/SAX Parsers
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15. XML Applications SOAP/XML Web Services AJAX
G l a r i m y
XML Applications
SOAP/XML Web Services
XML
AJAX
SOAP/XML Web Services
A technology to integrate two systems that are developed on two different platforms
A technology to use legacy systems in new environments
AJAX
A technology to speed up web clients
A technology to develop more interactive applications on the internet
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16. XML Applications Publishing Industry
G l a r i m y
XML Applications
Publishing Industry
Stores the content in a neutral format
The content can later be
Converted to MS-Word, PDF and etc.,
Converted into HTML and rendered on Web Clients
Rendered on Mobile & Smart Devices
Printed as books
Shared with other parties
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17. The Process Someone defines XML tags for a given application
G l a r i m y
The Process
Someone defines XML tags for a given application
Based on the expected nature of the data
Using DTD or XSD technologies
Someone develops XML document using these tags
By sticking to XML rules
By sticking to the tag definitions
And shares the document
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18. G l a r i m y
Inside XML
An XML document is simply a text file with .xml extension. The content of an xml document is just collection of XML elements.
Every XML document have one and only one root element, the outer most element of the document. The root element can have attributes and child elements, if any.
An XML element starts with opening tag and ends with closing tag. Then generally have text values.
Tag names are case sensitive, starts with letter or underscore and without white spaces. They can have numbers, dot and hyphen after the first character.
Tags can have attributes.
Attributes are name-value pairs. Value must be within single or double quotes. Can not have more than one value for an attribute. Attribute names are like Tag names.
A tag can have any number of attributes, separated by space.
An element can have child elements.
An element can also be any empty element.
Tags must be properly nested.
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19. Inside XML G l a r i m y Most of the documents also have prolog.
It defines xml version, entities, DOCTYPE and etc., Its optional.
Attribute version specifies the version of XML. It defaults to 1.0. XML 1.1 is the latest version.
Encoding identifies the character set used in the document. UTF-8 is the default character encoding. XML document can have non-English characters if appropriate encoding is specified.
Standalone identifies the source of tag and entity definitions.
For external Tag definitions, standalone gets a “no”.
And the definitions file must be referenced.
SYSTEM must be used in referring definition files that are not on the same file system.
For public definitions, PUBLIC must be used along with FPI.
FPI stands for Formal Public Identifier. Its in the form of -/+/ISO//group//description//lang
In case standalone is “no”, the definitions must be available inline in the XML document itself.
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20. Thank You www.glarimy.com
For Technical Queries
Thank You
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