Presentation conducted in October of 2007 discussing the fundamentals behind SOA.

1. Introduction to SOA Arabinda (Ari) Roy Senior Project Manager DATA Inc. Montvale, NJ [email_address]

3. Why SOA ? Is it compelling enough?

4. Which one would you pick? ERP/ AS-400 CRM / Siebel Oracle Server PO System/ IBM Mainframe E-Commerce / Web sphere on Solaris Scenario 1

5. Which one would you pick? Service Bus Scenario 2 CRM/ Oracle Server ERP/ AS-400 E-Commerce/ WebSphere- Solaris PO System/ IBM Mainframe

9. Application Service Evolution Class Layer Service Layer Component Layer Structured design Service Oriented Design (Inter-Enterprise Scope) Component Oriented Design (Inter-Application Scope) Object Oriented Design

11. Example IBM Mainframe Middleware XML XHTML Campus Users Example of a “Service” that incorporates Mainframe code COBOL Application 1989 & Service for retrieving updating travel Information

14. Benefits of SOA Independence from technology Adequate business infrastructure Agility Reuse Risk mitigation Evolutionary approach Cost savings More efficient development process Feedback at different levels

15. What is SOA?

17. Discover Customized Service Consumers at Different location Collect and Route Pickup and Deliver Standardize

22. Question: Can parallels be drawn between Dabawalla and SOA? Question: What does Dabbawalla and SOA have in common? Lessons from Dabbawalla

28. Key components of SOA Discovering SOA Analogy: “The 6 blind men and the Elephant” SNAKE ? FAN ? SPEAR ? TREE ? ROPE ? WALL ?

29. Different interpretation of SOA… ESB ? XML ? BPEL ? Web services ? SOAP? RESTful ?

30. Key components of SOA SOA Business Services Enterprise Service Bus Service Repository Contract Implementation Interface Governance Front-End Data Business Logic

32. SOA architecture Finds and Retrieves Registers Invokes Service Directory Service Consumer Service Provider

33. The SOA Life Cycle

34. Challenges SOA Alphabet Soup What Would You Choose? Axis JBI

35. Associated Terminology Service Oriented Architecture SOA Service Oriented Development of Applications SODA Service Oriented Business Applications SOBA Web Services WS Service Oriented Enterprise SOE Global Delivery Model GDM Enterprise Service Provider ESP Business Process Management BPM Business Process Outsourcing BPO

36. How does SOA Work?

37. Using a Service Developer Service Repository Service Contract Service Client ( Application front-end or services ) Service Stub Contains Creates Searches in Based on Invokes Uses Fulfills Describes

39. SOA Stack- Based on Standards Source : Network Computing Magazine

43. Enterprise Service BUS

48. Structure of BPEL <process> <!– Definition and roles of process participants --> <partnerLinks> ... </partnerLinks> <!- Data/state used within the process --> <variables> ... </variables> <!- Properties that enable conversations --> <correlationSets> ... </correlationSets> <!- Exception handling --> <faultHandlers> ... </faultHandlers> <!- Error recovery – undoing actions --> <compensationHandlers> ... </compensationHandlers> <!- Concurrent events with process itself --> <eventHandlers> ... </eventHandlers> </process> Process Language

49. <switch> <faultHandlers> Determine if Can Fulfill 10:00am Handle Negative Credit Exception Discount Service start end BPEL Flow ? Credit Service Inventory Service Get Discount Send Credit Application Receive Credit Result 03:00pm Send Inventory Request Receive Inventory Result <process> </process> <variable> <partnerLink> <partnerLink> <partnerLink> <receive> <invoke> <invoke> <flow> </flow>

50. Model View Controller Revisited View Query UI Controller Task Engine Business Process Controller Task Request Select Task Service Request Change State Controller Model Changed Model Changed Select View WS WS WS WS Model

51. SOA requirements View ERP PLM CRM UI Controller Task Engine Business Process Controller Service Request WS Query Engine WS WS WS WS WS WS A Complete Separation of the Business Logic and UI

55. Challenges of SOA

56. Reality Check … Screen Scrape Screen Scrape Screen Scrape Screen Scrape Message Queue Message Queue Message Queue Download File Download File Download File Transaction File Transaction File Transaction File ORB ORB CICS Gateway CICS Gateway APPC APPC RPC RPC Transaction File Sockets Sockets Message Message Application Application Application Application Application Application Application Application Application Application

59. Who should use SOA?

62. Session II Sample Case Study <SOA> as an Application bridge

69. Sample Customer Order SOA using JAVA Web services – Mark D. Hansen

70. XML representation of Order Record source: SOA using java Web services –Mark D. Hansen

71. Customer History record source: SOA using java Web services –Mark D. Hansen

72. XML representation of Customer History record source: SOA using java Web services –Mark D. Hansen

73. Getting EIS record using REST and JWS source: SOA using Java Web Services –Mark D. Hansen

74. Sending EIS record using REST : Push messaging /w JWS source: SOA using Java Web Services –Mark D. Hansen

75. RESTful Services deployed using Provider <Source> source: SOA using Java Web Services –Mark D. Hansen

76. Sales order – Customer History Data mapping

77. XSLT for transformation – SOA style integration

78. RESTful Services deployed on Glassfish: Package structure and assembly: Snapshot-I

79. RESTful Services deployed on Glassfish : Snapshot- II

80. RESTful Services deployed on Glassfish : Snapshot-III

82. Q&A

83. Thank you! Visit my company’s website at www.datainc.biz