1. ENTERPRISE APPLICATION INTEGRATION
THE APPLICATION INTEGRATION APPROACH

2. Application Integration Approaches
Information- oriented
Business Process integration-oriented
Service-oriented
Portal-oriented

3. 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.

4. 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

5. 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

6. 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

7. 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

8. Business Process Integration- Oriented Approach
Places a well-defined business process as the controlling entity
Enable users to access information and processes encapsulated in remote system

9. 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

10. Portal-Oriented Approach
Allows to view a multitude of systems through a single use-interface or application.