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In this post we will discuss on key steps that we need to follow to install Integrated SOA Gateway (ISG) on a standalone  SOA Weblogic server.

Oracle E-Business Suite Integrated SOA Gateway (ISG) enables supported interface types published in Oracle Integration Repository. These interfaces can be transformed into SOAP and REST web services.

Oracle E-Business Suite SOAP Services

• SOAP-based web services are deployed on Oracle SOA Suite running on Oracle WebLogic Server
• Steps to configure SOAP services span across Oracle E-Business Suite as well as Oracle SOA Suite
• Interface types enabled for SOAP services are PL/SQL, Concurrent Program, XML Gateway (Inbound), and Business Service Object.

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Oracle E-Business Suite Integrated SOA Gateway is the intrinsic part of Oracle Ebusiness Suite for service enablement.

Key points:

• A central location where all service related business interfaces are stored
• All application users can browse through these business interfaces to know what type of services are available for service consumption.
• Provides a complete catalog of integration interfaces within Oracle E-Business Suite.
• Any changes in interface definitions and descriptions are automatically reflected with EBS release
• Displays each interface details including source information, methods within the interface, and Web service information if the interface can be service enabled.
• Supports custom integration interfaces
• Enforces security rules to allow only authorized users to perform administrative tasks

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We already described in earlier post what is web service. Service enablement is one of the “essential features”  or “process flow” in Oracle E-Business Suite Integrated SOA Gateway. You can say it is that “magic ingredient” which allows native packaged integration interface definitions written in PL/SQL, Java, and other formats and stored in Oracle Integration Repository to be transformed into Web services.

“Service enablement” involves:

• Generating service artifacts, such as XSD
• To validate XML messages, WSDL or WADL to describe the Web service,
• Deploying web services on an application server so that the services are available to clients over the Web.

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Before going into ISG Concepts, it is important to briefly understand what is a Web Service and some other related terms which can be new for beginner.

Web Services:

• Web Service in simple terms is a “software system” for machine-to-machine interaction over a network.
• Its interface is described in certain format which can be processed by machine.
• WSDL is one kind of interface format which can be created using SOAP messages
• WADL is another kind of interface format created using REST messages
• Web Services are self-describing, reusable software components encapsulating discrete functionality. Example: Employee creation can be one self-contained web service.

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