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Web Services: The Next Wave Cian Quinlan Solution Architect

Something Big Is Happening. ?..there is no doubt that something big is happening in the computer industry?as big as the rise of the PC in the 1980s that turned hardware into a commodity and put software squarely at the center of the industry. Now it looks as thought software will have to cede to ser

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Web Services: The Next Wave Cian Quinlan Solution Architect

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    1. Web Services: The Next Wave Cian Quinlan Solution Architect / Web Services Evangelist Integrated Information Systems cianq@iis.com

    2. Something Big Is Happening “..there is no doubt that something big is happening in the computer industry—as big as the rise of the PC in the 1980s that turned hardware into a commodity and put software squarely at the center of the industry. Now it looks as thought software will have to cede to services delivered online.” The Economist, April 14th, 2001

    3. Something Big Is Happening “The changes now under way are likely to reshuffle the industry completely.” The Economist, April 14th, 2001

    4. Let’s take a trip

    5. Browser Centric

    6. Application Centric

    7. What is a Web Service? A Component Lives on the Internet “Remote Procedure Call” Advertises its services Known interface Standards based: SOAP, UDDI, WSDL..

    8. Application Centric Need: API Standard transport Way to find an appropriate service Way to locate the service Service name Service parameters

    9. What is SOAP? SOAP (Simple Object Access Protocol) Remote Procedure Call Input parameters Return values XML over HTTP / SMTP / MQ .. Language / Platform independent Industry support Microsoft & IBM, etc

    10. SOAP Message

    11. UDDI Registry

    12. UDDI Registry

    13. UDDI Registries - Scope Internet, intranet, extranet Public, private Communities

    14. Web Services Description Language WSDL describes how to invoke a service provides information on the data being exchanged location of the service

    15. SOAP Example: Get stock price

    16. SOAP Request POST /StockQuote HTTP/1.1 Host: www.stockquoteserver.com Content-Type: text/xml; charset="utf-8" Content-Length: nnnn SOAPAction: "http://example.com/stockquote.xsd" <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> <SOAP-ENV:Body> <m:GetLastTradePrice xmlns:m="http://example.com/stockquote.xsd"> <symbol>DIS</symbol> </m:GetLastTradePrice> </SOAP-ENV:Body> </SOAP-ENV:Envelope>

    17. SOAP Response HTTP/1.1 200 OK Content-Type: text/xml; charset="utf-8" Content-Length: nnnn <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/> <SOAP-ENV:Body> <m:GetLastTradePriceResponse xmlns:m="http://example.com/stockquote.xsd"> <Price>34.5</Price> </m:GetLastTradePriceResponse> </SOAP-ENV:Body> </SOAP-ENV:Envelope>

    18. WSDL <?xml version="1.0"?> <definitions name="StockQuote" <message name="GetLastTradePriceInput"> <part name="body" element="xsd1:GetLastTradePrice"/> </message> <message name="GetLastTradePriceOutput"> <part name="body" element="xsd1:GetLastTradePriceResponse"/> </message> <service name="StockQuoteService"> <documentation>My first service</documentation> <port name="StockQuotePort" binding="tns:StockQuoteBinding"> <soap:address location="http://www.stockquoteserver.com/StockQuote"/> </port> </service> </definitions>

    19. UDDI White pages: address, contact details and known identifiers Yellow pages: industrial categorizations based on standard taxonomies Green pages: technical information about services

    20. UDDI Core taxonomies North American Industry Classification System Universal Standard Products and Services Codes IS0 3166 Geographic Taxonomy Additional taxonomies Standard Industrial Classification GeoWeb geographic classification

    21. UDDI: Query The following query, when placed inside the body of a SOAP envelope, returns details on IBM. <find_business generic="1.0" xmlns="urn:uddi-org:api"> <name>IBM</name> </find_business>

    22. UDDI <businessList generic="1.0" operator=“International Business Machines Corporation" truncated="false" xmlns="urn:uddi-org:api"> <businessInfos> <businessInfo businessKey="0076B468-EB27-42E5-AC09-9955CFF462A3"> <name>IBM Corporation</name> <description xml:lang="en"> IBM is cool… </description> <serviceInfos> <serviceInfo businessKey="0076B468-EB27-42E5-AC09-9955CFF462A3" serviceKey="1FFE1F71-2AF3-45FB-B788-09AF7FF151A4"> <name>Web services for smart searching</name> </serviceInfo> <serviceInfo businessKey="0076B468-EB27-42E5-AC09-9955CFF462A3" serviceKey="8BF2F51F-8ED4-43FE-B665-38D8205D1333"> <name>Electronic Business Integration Services</name> </serviceInfo> </serviceInfos> </businessInfo> </businessInfos> </businessList>

    23. Travel Application 1

    24. Travel Application 2

    25. Travel Application 3

    26. Java: Web Services Related APIs Five core APIs: JAXP XML Parsing with DOM, SAX and XSLT JAXB XML data Binding to Java JAXM API for Message Layer Protcols JAX/RPC API for Remote Procedure Call conventions JAXR Java API to the XML Registries JAX Pack

    27. Using JAX APIs To Build Web Services

    28. Web Services and J2EE J2EE 1.4 – a major theme is web services Key pieces will ship before 1.4 JAX Pack – soon (July?) JSR 109 – Web Services 3Q01 Support for web services now or soon in most major app servers Tool vendors rushing to support WSDL and the gory details will be hidden

    29. .NET What is .NET? New language and runtime environment Web Services

    30. .NET Hailstorm is a set of consistent web services which provide: Common identity Messaging Naming Navigation Security Role mapping Data modeling Metering Error handling

    31. .NET Web Services

    32. .Net Web Services

    33. Hailstorm Revenue Model

    34. Net OS? Is Hailstorm is the beginning of Microsoft’s Net OS? Issues Do you trust Microsoft? Authentication is the key – ticket used to bind services Private authentication system makes .NET closed and propriety Need for standards based authentication – SAML, XKMS.. Security, liability and legal concerns

    35. Some Quotes..

    36. Honeywell Aircraft Landing Systems “In the past two or three years, we’ve invested heavily in building a component-based architecture. With Web services, we can now leverage this investment by giving our trading partners direct access to selected business components through the Internet.” Dave Kulakowski, Development and Technology Manager

    37. The Bekins Company “It’s possible that in the long run, all our business will be conducted through Web services applications. We’re certainly moving in that direction. Web services will be the glue that will connect our whole business together.” Randall Mowen Director of Data Management & e-business Architecture

    38. Entrust Technologies “We are transforming PKI (Public-Key Infrastructure) technology to support a services oriented architecture to enable applications to invoke PKI functionality through remote XML-based Web services." Brian O’Higgins, Executive VP and CTO, Entrust Technologies

    39. Hewitt’s Total Benefit Administration System “Currently, employees and clients access participant benefits data via Hewitt’s direct presentation channels. Increasingly, however, Hewitt has been receiving requests for direct access to participant data from 3rd-party service providers as well as clients developing HR self-service portals. In the past, Hewitt would have built custom proprietary connectivity solutions to address these requests. Now, with Web services, Hewitt Associates can build open non-proprietary solutions instead.” Tim Hilgenberg, Chief Technology Strategist at Hewitt Associates

    40. Charles Schwab “We believe Web services will be a big step forward in what we can offer our customers." Chalon Mullins, technical director of infrastructure strategy and architecture

    41. Some Examples..

    42. Dollar Rent-A-Car Create standard interfaces so business partners could tap into the company's car reservation system. Used SOAP to create an interface that lets Southwest Airlines' Unix system easily tap into Dollar's reservation system. "We designed the SOAP interface for Southwest, but we will use it for our Web site. Our Palm application already uses it, and we're building a Pocket PC application.” “It took us three days to build the prototype for the reservation system. It was amazingly simple, almost too good to be true."

    43. Bekins Need to optimize the loading of a truck Tradition method is to call / fax business partner to share capacity Working with IBM to expose services of partners as set of web services Result will be better truck utilization negotiated in a fraction of the time without manual intervention

    44. News

    45. BowStreet LYNNFIELD, MA, April 23, 2001 … Bowstreet delivers the next breakthrough in web services: packaged e-business solutions. The Business Web Factory represents business processes – including legacy applications – as web services and stores them in a directory as reusable components. IT people then design models of e-business solutions – for example, a customer portal – by specifying and combining links to these services.

    46. Application Builder? Palette of web services Drop and Drag Connect Apply xforms Generate

    47. eCommerce Stack.. So Far

    48. Going Up the Food Chain ??? UDDI SOAP HTTP TCP/IP

    49. e-procurement at Dell A customer pulls product information from Dell's server into the customer's purchasing system, which creates an electronic requisition. After requisition is approved online, a computer-generated purchase order is sent back to Dell. The entire process can take 60 seconds and has cut errors from about 200 to tens (per million transactions). Dell has been able to shave $40 to $50 off the cost of processing each order. Dell hopes to get inventory down to 2 days – Compaq, Gateway IBM average 50 – 90 days

    50. e-procurement at Dell Before: Litton, one month to get a PC Hooked into Dell’s e-procurement system After: 2 days after order is placed However, high costs associated which changing systems Major problem for Dell is getting customers to sign up Need a standard way for systems to interoperate

    51. ebXML Joint initiative of the United Nations (UN/CEFACT) and OASIS Specs that enable a electronic business framework Enterprises of any size can meet and conduct business using XML based messages Building on existing EDI knowledge SOAP is the transport Over 30 companies participated in POC in May

    52. ebXML: Technical Architecture

    53. Trading Partner Agreement (TPA) A TPA is an electronic contract that uses XML to stipulate: general contract terms and conditions participant roles (such as buyers and sellers) communication and security protocols business processes (such as valid actions and sequencing rules) A TPA defines how trading partners will interact at the transport, document exchange, and business protocol layers.

    54. Transactions Transaction Authority Markup Language (XTMA) initiative backed by Bowstreet, IBM, HP, Oracle and Sun Microsystems Business Transaction Protocol (BTP) BEA -> OASIS Collaborate B2B integration platform

    55. ebXML & UDDI Work underway to enable UDDI & ebXML registries to interoperate

    56. Web Services Flow Language (WSFL) WSFL is an XML language for the description of Web Services compositions Developed by IBM – submitted to W3C

    57. eCommerce Stack

    58. xMethods A directory of publicly-available web services Hosting and deployment facilities for service developers Forums for discussion about available web services UDDI interfaces to repository SOAP Interoperability Testbed

    59. xMethods

    61. Some Impacts / Trends Reuse EDI Legacy Integration Application Construction Application Outsourcing Service Brokers WSUI

    62. Reuse Holy Grail is component reuse Web services provides reuse infrastructure and standards Language, platform independent Standard interface, registry and repository Accessibility: internet, intranet, extranet

    63. Reuse Web Services provide execution environment What about source or class reuse? ComponentSource 6500 Many companies offering business components Oracle – BC4J (JDeveloper) IBM – BC ex SanFrancisco IBM - CommerceSuite BEA ATG Web service to Deliver JARs..

    64. EDI Current model Restricted: point to point Expensive Inflexible Confined to Fortune 1000 Migrating towards Publish and Subscribe, flexible, cheap, extensible, any size user, “EDI for the masses”

    65. Legacy Integration

    66. Application Construction Division of labor: Those who build components (web services) Those who assemble components (applications) Applications = Aggregation of web services + core competencies

    67. Application Outsourcing The use of external Web services, in effect, outsources all or part of an application

    68. Service Broker Web Services + B2B products = Services Broker eBusiness companies must consolidate their legacy and new applications together into a single eApplication. Services broker must be able to scale to handle complex applications. Companies such as IBM, BEA, SilverStream, WebMethods, Sybase, Iona, and Invertica are developing Service Brokers to provide a 'complete' eBusiness.

    69. Service Broker Frst implementations of Service Brokers: Extricity Web Methods SilverStream Extend IBM B2Bi BEA Process Integrator/Collaborator

    70. Service Broker Components A Business Process Manager (BPM) Component Workflow component that allows business processes to be defined. Acts as a coordinator for interactions between multiple applications. Applications and humans can be interfaced to this component. WSFL is candidate for defining business process definitions Middleware connectors Support a variety of input and output connectors. Connectors to include: RMI/IIOP, SOAP, JMS, CICS, IMS, any JCA supported EIS, or IIOP. Interfaces and middleware implementation of an interface exposed by a connector can be described using WSDL. Content-based Routing and Transformations for messages Message-based connector's will also support simple flows that allow content based routing and message translation/transformation/enrichment.

    71. Service Broker Components Security Mapping Multiple applications and external applications will use different security schemes. Service broker needs to provide credential/role mapping and authorization across all involved components. Process State Management Aggregate applications may need to store the state about the process. Connector Discovery Mechanisms UDDI Transaction Monitor Required if transactions span multiple applications

    72. WSUI Web services aggregation Controlled by xml config file Layout complex portals

    73. Issues Authentication Encryption Management Transactions Quality of service Payment Performance Event Notification Versioning SOAP up to the job?

    74. Adoption Initially within companies and between partners Trust Payment Moving to UDDI when trust and payment models are developed and gain acceptance

    75. Opportunities

    76. Gartner “Will Web Services deliver? Yes. Web Services are relatively low risk technology that can be used to implement high risk business strategies” David Smith, VP, Gartner

    77. Resources xml.apache.org open source XML tools from Apache Software Foundation www.w3.org World Wide Web Consortium site uddi.org Universal, Description, Distribution Integration consortium xmethods.com & xmltoday.com news on SOAP service

    78. Resources ibm.com.alphaworks site for free emerging tools and technologies from IBM ibm.com.developerworks "the" place to go for resources, communities and updates on Web Services and XML for developers IBM Dynamic e_business http://www4.ibm.com/software/solutions/ webservices/resources.html

    79. Resources Microsoft/net Toolkits and documentation OASIS http://www.oasis-open.org/

    80. Catch the next wave….. jump on board!

    81. Q & A

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