XML:Motivation Data interchange is critical in today's networked world Examples: Banking:funds transfer Order processing (especially inter-company orders) ▣Scientific data ■ Chemistry:ChemML,.. ■ Genetics（n.遗传学)： BSML (Bio-Sequence Markup Language),... Paper flow of information between organizations is being replaced by electronic flow of information Each application area has its own set of standards for representing information XML has become the basis for all new generation data 5 interchange formats5 XML: Motivation † Data interchange is critical in today’s networked world „ Examples: † Banking: funds transfer † Order processing (especially inter-company orders) † Scientific data „ Chemistry: ChemML, … „ Genetics (n.遗传学): BSML (Bio-Sequence Markup Language), … „ Paper flow of information between organizations is being replaced by electronic flow of information † Each application area has its own set of standards for representing information † XML has become the basis for all new generation data interchange formats