simplifying eai paul butterworth forté software inc. [email protected] hpts 99
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99 Integrate and Develop
• “Extended” and “Composite” Applications• Generally involve pulling together many of
the functional systems within your environment -- Integrate
• Combine existing functional systems with new functions -- Develop
• Deploy these to new audiences (customers and partners) -- Develop
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99 What’s Hard in EAI?
• Hooking up the applications - they don’t want to be integrated.– No interfaces– Batch systems– getting confirmation– screen scraping
• Settling on or converting data representations• Recovering from errors• Managing performance
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99 Too Many Moving Parts
• Applications• Transformations• Interfaces• Messaging• Web• App Servers• DBMSs
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99 Two Types of Integration
• Tightly-coupled Components– CORBA, COM, Java models– Generally Synchronous
• Loosely-coupled Components– Applications and Packages– Generally Asynchronous
• Both Required in Most Systems
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99 How do we simplify EAI?
• Process-based Integration– The business value is in automating the process (particularly
in web applications) not in the plumbing.
• XML Data Interchange– The best bet for interoperability
• Component Assembly for faster integration and development– TOOL– Java– COM and CORBA
• “One Button Run”
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99
Technology Integration Technology Integration
Forté Fusion Architecture
Component Develop & DeployComponent Develop & Deploy
LegacyLegacyAppApp
CustomCustomAppApp
PackagedPackaged
AppApp
Process AutomationProcess Automation
Forté Fusion BackboneForté Fusion Backbone
FunctionalFunctionalLogicLogic
ProcessProcessLogicLogic
IntegrationIntegrationLogicLogic
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99 Forté Fusion Components
Fusion Manager
Process manager
Application Proxy
Applicatione.g. Inventory
Connector
API (e.g C++)
Application Proxy
Applicatione.g. Shipping
Connector
API (e.g Java)
Application Proxy
Applicatione.g. Credit
Check
Native XML
XML messages
Rule Base (XSL)
Forté Fusion
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99 Who Owns the Business Data?
• EAI framework holds a bunch of business data.
• Business wants access to it.• EAI framework is now in the database
business.• Some of the state (state of the
process/message) must be there.
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99 Performance
• A bunch of disparate applications• Many layers of software• Implications:
– Too many requests– Too many translations– Too many failures (see next issue)
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99 Keeping This Mess Running
• Lot’s of applications• Lot’s of infrastructure• Lot’s of machines• Lot’s of communications
• What doesn’t go wrong?
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99 Who Worries About the Boring
Stuff?• Installing new versions of software• Compatibility• System management• Footprint
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99 Summary
• It’s more than just messaging• Tools for
– Development– Mapping– Assembly– Deployment– Operations