The following explains the basic form of a retrofit: We’ve built applications and PeopleSoft delivers applications in the PeopleSoft module so that the data structure can rely on HR and Finance data. Now, we’re going to have two disparate systems for HR, Finance and students, so the underlying data structures are going to need to change to accommodate the new data structure for Workday.
The following explains a bridge integration: The bridge integration will feed PeopleSoft the retrofits needed to the underlying application code to take the new data structure into account.