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ENTERPRISE APPLICATION INTEGRATION THE APPLICATION INTEGRATION APPROACH Application Integration Approaches Information- oriented Business Process integration-oriented Service-oriented Portal-oriented Information- Oriented Approach Deals with the simple exchange of information between two or more systems Integration between databases Three categories : data replication; data federation; interface processing. Information- Oriented Approach: Data replication - moving data between two or more databases Data Federation – allows many databases appear as single database Interface Processing – externalizes information out of packaged application through a well defined API Information- Oriented Approach: Data replication moving data between two or more databases Of the same vendor or different vendor Different databases with different schemas and models can exchange data e.g SQL Server schemas and My SQL schemas are two different schemas but these two databases can exchange data Simple, easy to implement and low cost Information- Oriented Approach: Data Federation • allows many databases appear as single database • Virtually represent the many real, physical databases • It binds many different data types into a unified model that supports information exchange • Allows access through single, well defined interface Information- Oriented Approach: Interface Processing • Externalizes information out of packaged application through a well defined API • Use of information broker to support interface processing to connect to custom/packaged application • Efficiently integrates different types of application • Doesn’t support much on business logic and methods Business Process IntegrationOriented Approach Places a well-defined business process as the controlling entity Enable users to access information and processes encapsulated in remote system Service-Oriented Approach Provides mechanisms to create composite applications, leveraging services found in many remote systems Allows application to share common business logic or methods Portal-Oriented Approach Allows to view a multitude of systems through a single use-interface or application.