1. Enterprise Infrastructure
Bina Ramamurthy
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2. Introduction
Integration of the enterprise relies on an enterprise-wide infrastructure to support communications and shared services.
An enterprise infrastructure provides the backbone management and communications that link the business systems.
Collection of services and facilities that link business systems, management information systems, and portals for customers, employees and other partners.
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3. Enterprise Integration Infrastructure
Business System
Domain
Decision Support
Facilities
Plant Control
Systems
Intranet facilities System Management Archiving Service
Personal computers Security services Meta data Repository
Messaging service Organization Directory Knowledge Mgt.
Portals
B2B Messaging
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4. Intranet Facilities
The intranet is for providing internal user access to applications and for the exchange of messages and files between applications.
Typically contains a number of LANs linked by a wide-area-network with firewall and remote access facilities.
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5. Messaging Services
Sometimes called Message Oriented Middleware (MOM) provide communication between Business System Domains (BSD) and their applications in a “store-and-forward”, asynchronous mode of communication.
An sender application posts a message to a queue for later delivery.
The receiver application removes the message from the queue to process the message.
Queue guarantees once-only-once delivery.
Message is ready for delivery only after a transaction associated with it has committed.
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6. Messaging (contd.)
To provide flexibility and to reduce the number of connections between applications a message broker service is used.
An additional capability called publish-and-subscribe service allows applications to publish the occurrence of an event that other applications have subscribed for.
Messages can be filtered to have a certain characteristics before getting forwarded.
Message transformation is another service associated with asynchronous messaging.
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7. Messaging and XML Currently XML is the preferred format for messages.
Transformations can be specified using style sheets (XSLT).
Store and forward also helps realize loose coupling requirement of enterprise systems.
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8. Meta Data Repository It is a data dictionary.
It is the data about the “data”, systems and interfaces.
Six categories of meta data are:
Database scheme
Object interface repository
Message transformation specification
Data warehouse meta data (historical data for mining)
Knowledge meta data
XML schema specifications specific to the business
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9. Portals Portals are windows on the enterprise using the internet.
Enterprise portal: public interface of the enterprise to the outside world.
Employee portal: services and references of interest to employees: benefits portal
Retail Portal: for conducting business with general public.
Customer service portal: for customer relation management.
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10. B2B Portal/exchanges
Typically for conducting business between partners through application to application interactions (not human /computer)
ebXML is a standard developed for interchange of documents and protocols to follow.
It uses secure messaging (https)
Example: Auction framework.
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11. Summary Enterprise infrastructure is a key element in achieving:
Integration
Economies of scale
Flexibility
Security
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12. Introduction State the purpose of the discussion Identify yourself
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13. Topics of Discussion State the main ideas you’ll be talking about
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14. Topic One Details about this topic Supporting information and examples
How it relates to your audience
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15. Topic Two Details about this topic Supporting information and examples
How it relates to your audience
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16. Topic Three Details about this topic
Supporting information and examples
How it relates to your audience
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17. Real Life Give an example or real life anecdote
Sympathize with the audience’s situation if appropriate
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18. What This Means
Add a strong statement that summarizes how you feel or think about this topic
Summarize key points you want your audience to remember
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19. Next Steps Summarize any actions required of your audience
Summarize any follow up action items required of you
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