| Siebel Financial Services eBusiness Application Integration Guide > Financial Services eAI Business Scenarios >  Data Sharing Across the Enterprise
 Business processes often need to cross departmental or even enterprise boundaries. Because different organizations may be using different applications, you need a way to make sure one application can hand off the execution of a business process to the next application. This section describes three examples: 
B2B Integration
Legacy Data Integration
ERP Integration
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