Oracle SOA Suite 11g to 12.2.1.4 Upgrade11.1.1 for High levels;

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Upgrade SOA Suite 11g (11.1.1.x) environment to Oracle SOA Suite 12c (12.2.1.4) for:

Extended support
REST & modern integration capabilities
Enhanced performance and monitoring

Better developer tooling (JDeveloper 12c)

🧪 Phase 1: Assessment

✅ Pre-Migration Checklist:

List all 11g composites (SOA & OSB)
Identify shared MDS artifacts (WSDL, XSD, etc.)
Map database schemas and adapter usage
Locate embedded Java code in composites
Record audit settings and fault policies
Confirm which 11g patches are installed (opatch lsinventory)

🔧 Tools:

WLST scripting for inventory export
ANT scripts for automated composite exports
XSL comparison for transformation logic

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