For example, suppose a base object contained Leads, Partners, Customers, and Suppliers. If Segment Match Values contained the values Leads and Partners, and Segment Matches All Data were unchecked, then

Informatica MDM Hub

would only match within records that contain Leads or Partners. All Customers and Suppliers records will be ignored.

With Segment Matches All Data checked (selected), then Leads and Partners would match with Customers and Suppliers, but Customers and Suppliers would not match with each other.