XML: A Revolution Unfolds Adam Bosworth General Manager Microsoft Corporation.

XML:XML:A Revolution UnfoldsA Revolution Unfolds

Adam BosworthAdam BosworthGeneral ManagerGeneral Manager

Microsoft CorporationMicrosoft Corporation

AgendaAgenda XML todayXML today Realizing the Web’s full Realizing the Web’s full

potentialpotential Implications for XMLImplications for XML

Next StepsNext Steps

XML TodayXML Today

XML & Web-Based, 3-Tier XML & Web-Based, 3-Tier ApplicationsApplications

Storage

Middle-Tier

Client

DataIntegration

Presentation &Interaction

Delivery &Manipulation

What’s shipping todayWhat’s shipping today XML support in Internet Explorer XML support in Internet Explorer

4.0 4.0 XML Parser XML Parser XML Data Source Object (DSO)XML Data Source Object (DSO)

Dynamic HTML (DHTML) for Dynamic HTML (DHTML) for PresentationPresentation

Download from Download from http://www.microsoft.com/xmlhttp://www.microsoft.com/xml

DemonstrationDemonstration Built by JungleeBuilt by Junglee Searching for used books on Searching for used books on

the Webthe Web Runs on Internet Explorer 4Runs on Internet Explorer 4

Junglee:Junglee:Virtual Database TechnologyVirtual Database Technology

Access the WebAccess the Web

Web Web sitessites

Inte

rnet

Internet andInternet and

EnterpriseEnterprise

ApplicationsApplications HTTPHTTPHTMLHTML

ODBCODBC

XMLXML

As a DatabaseAs a Database

Virtual Database

Inte

rnet

Online RecruitmentOnline Recruitment

OnlineOnline

Job SitesJob Sites

Junglee Job

Canopy

Job ListingsJob Listings

(Corporations(Corporations))

Bank ofBank ofAmericaAmerica

AndersenAndersen

ConsultingConsulting

DellDell

AT&TAT&T

MotorolaMotorola 600+ companiesin the VDB

Wall StreetJournal

CareerMosaic

WashingtonPost

AOL

CareerPath

Inte

rnet

Web CommerceWeb Commerce

Web PortalsWeb Portals

Junglee Shopping

Guide

Product CatalogsProduct Catalogs

Wal-MartWal-Mart

Amazon.comAmazon.com

Barnes&NobleBarnes&Noble

The GapThe Gap

MotorolaMotorola100+ merchants

in the VDB

Yahoo!

Go2Net

.

.

.

.

.

.

Realizing the Web’s Realizing the Web’s Full PotentialFull Potential

The Web’s Full PotentialThe Web’s Full Potential Search for:Search for:

Goods (e.g. Used Books)Goods (e.g. Used Books) Services (e.g. Lawn-mowing)Services (e.g. Lawn-mowing) Information (e.g. Portfolios)Information (e.g. Portfolios)

ApplicationsApplications Sites are applications that help Sites are applications that help

analyze and manage this dataanalyze and manage this data

Challenges to Realize the Challenges to Realize the Web’s Full Potential...Web’s Full Potential...

Find information intelligentlyFind information intelligently Interact with applications on Interact with applications on

servers easily and efficientlyservers easily and efficiently But: physical implementations But: physical implementations

will vary from site to site will vary from site to site

Web Sites RequirementsWeb Sites Requirements Standardize on Standardize on logical viewslogical views, ,

not physical implementationsnot physical implementations Standard description of Standard description of

logical views availablelogical views available More than databases actually More than databases actually

did did Sites can interact with each Sites can interact with each

other and with clients!other and with clients!

Lessons from the WebLessons from the Web Simplicity winsSimplicity wins

Open, Easy, FlexibleOpen, Easy, Flexible Efficiency losesEfficiency loses

Complex, Binary formats, Fixed Complex, Binary formats, Fixed vocabulariesvocabularies

Lessons from ServersLessons from Servers Servers are like grocery storesServers are like grocery stores Good performance requiresGood performance requires

Coarse-grainedCoarse-grained communication communication Limited ability to multitask Limited ability to multitask Queues Queues Interruptible models Interruptible models StandardsStandards

We have learnedWe have learned We need an architecture that We need an architecture that

lets us interact in a coarse-lets us interact in a coarse-grained way through grained way through logical logical viewsviews

As a Web architecture, it must As a Web architecture, it must be easy, open, and flexible to be easy, open, and flexible to build and interact with these build and interact with these logical viewslogical views

XML XML XML is the most fundamental XML is the most fundamental

building blockbuilding block It is the Meta-grammar that It is the Meta-grammar that

allows us to describe allows us to describe anyany data data or state for any logical viewor state for any logical view

It is simple, easy, and openIt is simple, easy, and open It can describe any package of It can describe any package of

information moved to or from information moved to or from the middle-tierthe middle-tier

Application architectureApplication architecture

Storage

Middle-Tier

Client

Transform Data intoXML Logical View

XML &Components

View, Edit &Manage XML

XML is already evolving XML is already evolving to the next levelto the next level

Currently EmergingCurrently Emerging NamespacesNamespaces XML-DataXML-Data XML StoresXML Stores XML ConvertersXML Converters Tools galoreTools galore

Still to come...Still to come...

PresentationPresentation Data isn’t presentationData isn’t presentation Today — Dynamic HTMLToday — Dynamic HTML Tomorrow: Tomorrow:

XML inside DHTML: CSS & XML inside DHTML: CSS & ScriptScript

Extensible Style Language Extensible Style Language (XSL) which will allow the swift (XSL) which will allow the swift transformation of XML to HTML, transformation of XML to HTML, oror XML on client or server XML on client or server

Remember the book Remember the book storestore

Describe the store’s servicesDescribe the store’s services Describe the booksDescribe the books Request specific booksRequest specific books Act as my shopping cartAct as my shopping cart Allow me to buy booksAllow me to buy books

New XML grammarsNew XML grammars SchemaSchema

Logical view shape itself Logical view shape itself Site InformationSite Information

Site/Object/Server shape itselfSite/Object/Server shape itself Filters and UpdatesFilters and Updates

Any request for subsets of dataAny request for subsets of data Any desired set of changes to Any desired set of changes to

datadata

New XML grammarsNew XML grammars Object PersistenceObject Persistence

Describe how to save or Describe how to save or reload the state of any reload the state of any object to/from XML object to/from XML

DHTML

Web Applications ArchitectureWeb Applications ArchitectureApplications: Excel, Word

XML

XML

Objects

Custom Code

Middle-tierApplication

Databaseto XML

XML

Client

Middle-Tier

StorageMainframe Database

What’s missingWhat’s missing Dashed Pink LinesDashed Pink Lines Dashed Red LinesDashed Red Lines Yellow TanksYellow Tanks Blue TrianglesBlue Triangles

RPC RPC Dashed Pink LinesDashed Pink Lines

XML provides a basis for an XML provides a basis for an extremely simple and open extremely simple and open RPCRPC

Can be implemented by Can be implemented by anyone wanting to interact on anyone wanting to interact on the Webthe Web

New XML Grammars New XML Grammars Dashed Red LinesDashed Red Lines

Querying, Updating XML Querying, Updating XML logical viewslogical views

Same need as SQL for Query Same need as SQL for Query and Updateand Update

Stores/Queues Stores/Queues Yellow TanksYellow Tanks

Need to temporarily cache it, Need to temporarily cache it, index it, update the cached index it, update the cached copy, transact it copy, transact it

Also requires a store for Also requires a store for managing itmanaging it

Converters Converters Blue TrianglesBlue Triangles

Between physical Between physical implementations and implementations and XML-based logical viewsXML-based logical views

Special cases required for Special cases required for relational databasesrelational databases

What can be built?What can be built?

Line-of-business applicationsLine-of-business applications PlanningPlanning NotificationNotification Data CaptureData Capture Information searchingInformation searching CollaborationCollaboration

Next StepsNext Steps

Step IStep I Learn XML Learn XML

View, edit, & manage XML View, edit, & manage XML Map XML logical views & Map XML logical views &

databasesdatabases http://www.microsoft.com/xmlhttp://www.microsoft.com/xml

Define grammarsDefine grammars General General e.g.e.g. Schema Schema Industry-specificIndustry-specific

Step IIStep II Build sites that are open Build sites that are open

applicationsapplications As standard XML grammars As standard XML grammars

emerge to describe site emerge to describe site services, support them services, support them

Make them interoperable. For Make them interoperable. For each site each site Publish its shape, its services, Publish its shape, its services,

and most importantly its dataand most importantly its data

Step IIIStep III

As XML grammars emerge for As XML grammars emerge for filtering and updating: filtering and updating: Implement and support themImplement and support them

Engineer your client side Engineer your client side objects to talk XML to servers.objects to talk XML to servers.

SummarySummary We’re only at the We’re only at the veryvery start of start of

the Web revolution. The most the Web revolution. The most exciting part is still to comeexciting part is still to come

With XML, interacting with With XML, interacting with data and applications on the data and applications on the Web will be as easy as viewing Web will be as easy as viewing shared contentshared content

Get started!Get started!

™

http://www.microsoft.com/xml