Explanation:

The key difference between Integration Procedures and DataRaptors is that Integration Procedures can access data from external sources, while DataRaptors can only access data from Salesforce. Integration Procedures allow the designer to create complex API queries declaratively using HTTP Actions or SOAP Actions. DataRaptors allow the designer to read, transform, and write data between Salesforce objects or fields. Both Integration Procedures and DataRaptors can invoke multiple actions in a single server call, and both can retrieve data from multiple related objects.