Hi Kelsy,
that's a good question. Let me try to answer:
Technical Integration Validation: A testing approach with a focus on the technical interfaces of a system's components. The goal is to verify if the component interfaces deliver the expected response and can be integrated with the other components or sub systems.
Business Process Validation: Business Process Validation has a focus on the end user's needs and requirements. The goal is to verify, if the system supports the business processes across all the system components (internal and external).