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eXtensible Markup Language
Derek Goüde Stephanie Zhao
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Presentation Topics Who, what, when, why of XML? How is XML used?
Benefits of XML Costs of XML Related Articles Summary
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What is XML? Markup Language XML
Metalanguage: type of language that describes another XML Universal format for structured documents/data Describes and organizes information Not a ML, but a specification for defining ML
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Who & When? 1970s invention of GML 1986 SGML adopted by ISO
Mark up technical documents with structural tags 1986 SGML adopted by ISO specification for defining markup languages Application: HTML 1990s XML Created Jon Bosak, Tim Bray, James Clark and others
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Why XML? W3C Standard Universal data interchange between dissimilar
systems Separate form and content Industries can specify how to store data Easily import and process information
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Tag Flexibility Intuitive Human Language HTML not practical
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How is XML used? Store data Exchange data Web publishing
Easily customize pages and applications Web searching and automating Web tasks Useful results in the right context
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XML Uses cont’d General applications E-business applications
Use, store, transmit, and display data E-business applications More accessible for EDI between B2B, B2C Wireless computing Portable and structured information for display on PDAs, cell phones
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Benefits of XML Content identification Databasing Enforced structure
Text elements defined Databasing Text broken down to component parts Enforced structure Conforms to template or DTD Merging materials from diverse suppliers Lack of formatting makes it easy International Standard (W3C) Widespread support from vendors
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XML Benefits cont’d Industry standardization (W3C)
Inter-industry data exchange Platform independent Transferrable to hardware and operating systems Software independent Variety of XML compliant tools Endurance No potential for data loss Repurpose data for different publication media Formatting done in JIT basis
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Costs of XML Training Specialized software Legacy conversions
Resistance to change Changes in processes Specialized software Expensive implementation Staff learning curve costs Legacy conversions Timely Complex
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“Shopping Without Dropping”
Reasons for switching from EDI to XML(ebXML) Reliability Duplicate Orders Automatic Retry In Event of Failure Reduction of Risk Exposure Decreases In Amount of Customer Support Required Image Source: ustacticalsupply.com
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“The Benefits of ebXML for e-Business”
Business to Business Database to Database W3C Standard Image Source: The Benefits of ebXML for e-Business
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Summary of XML Universal format for structured documents/data
Designed to separate form and content Facilitates automated data exchange Allow people to share, trade, collaborate info
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Questions?
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