Business Events

Business Events PowerPoint PPT Presentation


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2. What are Business Events. What Oracle manual says A business event is an occurrence in an internet or intranet application or program that might be significant to other objects in a system or to external agents."Example: For instance, the creation of a purchase order is an example of a business

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Business Events

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1. 1 Business Events By Dheeraj Bhushan Getrinate Inc. Example from ACCO Brands My Introduction Who Am I What I do And Why this presentation Business Events are My Introduction Who Am I What I do And Why this presentation Business Events are

2. 2 What are Business Events What Oracle manual says “A business event is an occurrence in an internet or intranet application or program that might be significant to other objects in a system or to external agents.” Example: For instance, the creation of a purchase order is an example of a business event in a purchasing application.

3. 3 Examples Business Supply Chain Received an Order Prepare Order Schedule Shipper Ship an Order Healthcare New Patient Appointment request Charitable Received a Pledge Application Order Management Order is Entered Order is Booked Order is Reserved Shipping Execution Deliveries Created Trip is Assigned

4. 4 History SNMP protocol released in 1988 Message Queues in Operating System Advent of MOMs (Message Oriented Middleware) Messaging standardization via JMS release with JDK 1.3.1 in 2000 SNMP v3 released in 2004

5. 5 Oracle Business Events The Oracle Workflow Business Event System is an application service that leverages the Oracle Advanced Queuing (AQ) infrastructure to communicate business events between systems. The Business Event System consists of the Event Manager and workflow process event activities.

6. 6 Subscriptions for Business Events Events that trigger custom code Events that send information to Workflow Events that send information to other queues or systems

7. 7 Uses of Business Events System integration messaging hubs Distributed applications messaging Message-based system integration Business-event based workflow processes Non-invasive customization of packaged applications

8. 8 How to? Design your Business Event/s Define your event Example of Invoking and Consuming a Business Event

9. 9 Use Case Analysis Define the issue in problem domain (Business/Technical) Identify the technical transition point before and after the problem identification Solution the problem Identify data requirements Identify solution path Validate solution Register a business event for the problem Associate the business event with the solution

10. 10 Design Considerations for Business Events Do you see a problem that spans two or more systems, Usually interfaces across two applications? Do you see a problem that you need to resolve in a more generic fashion, i.e. reusable components? How to approach such problems?

11. 11 Design Events Define your event hierarchy Company = Top level Company.Sub Company/ Business/ SBU Company.Application.Module.Event Group.Event Example event following the above convention ACCO.OracleEBS.ONT.ShipSetLinesWorkflow.Invoke

12. 12 Defining a Business Event User Interface: Use this for Initial creation Workflow Administrator Responsibility Developer Studio ? Business Events tab page Developer Studio ? Subscriptions link API based : Use this to automate. WF_EVENTS_PKG GENERATE and RECEIVE WF_EVENT_SUBSCRIPTIONS_PKG GENERATE and RECEIVE

13. 13 Invoke and Consume Business Events The steps for this example are presented as Problem description Register the Business Event (1 &2 ) Register Event Subscription (1,2 &3) Solution discussion of the New Workflow

14. 14 Example Problem Description We had created a customization on Order Line workflow to update Ship Method and Request Dates prior to Scheduling. However this workflow failed after the 11.5.10 CU2 upgrade. The error indicated that lines part of a ship set can not have two different ship methods. As our update to lines is done for each line the existing solution would not be able to work around this restriction.

15. 15 Old Order Line Workflow Process

16. 16 Register Business Event 1

17. 17 Register Business Event 2

18. 18 Register Event Subscription 1

19. 19 Register Event Subscription 2

20. 20 Register Event Subscription 3

21. 21 Solution Overview Order Lines workflow Queue data for a Ship Set Line Workflow’s consumer queue Last Line for the Ship Set on that Order invokes the Business Event Ship Set Line Workflow listens for this Event to start processing the queue After Ship Set Lines Workflow Completes. It sends continue activity signal to all Ship Set Lines

22. 22 New Order Line Workflow Process: Invoke Event

23. 23 Ship Set Lines Workflow Consume Event

24. 24 What’s Next.. BPEL and BPMN are two pervasive standards that will change the future of currents events based processing. Events will be critical for internal routing and integration of applications. Although external integrations will depend mostly on SOA suite technologies.

25. 25 Business Events to BPEL Complete Business processes BPEL process are event with source, action & destination, action response and error handling definition BPEL domains Process triggering event Events are state transition indicators Event Actions are based on subscription Event Groups

26. 26 References Oracle Workflow Developers Guide 2.6.3.5 (Part B12161-02) Message Oriented Middleware on Wikipedia at http://en.wikipedia.org/wiki/Message_Oriented_Middleware Java Messaging Service API overview at http://java.sun.com/products/jms/overview.html JMS Tutorial on java.sun.com OASIS web site at www.oasis-open.org Wikipedia at http://en.wikipedia.org/wiki/BPEL

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