a control that defines access to data at a low
level, specifying who can access particular rows within a table or
particular members within an OLAP cube. Such controls are typically
used to subset data by a user characteristic such as employee ID or
organizational unit. For example, an OLAP cube that contains employee
information might have member-level controls that enable each manager
to see the salary history of only that manager's employees. Similarly,
a table that contains patient medical information might have row-level
controls that enable each doctor to see only those rows that contain
data about that doctor's patients.