As a Masking Engine Administrator, you specify what information (data elements) to mask, how to mask the data (the algorithms to use), the location of the data to mask (regular expressions and profiler settings), and the roles or privileges for Masking Engine users. You perform all this within Masking Engine and you can then propagate it across all of your organization's departments.
domain is a virtual representation of a data element. An integral part of the data masking process is to use algorithms to mask each data element. The way you specify which algorithm to use on each individual data element is by creating a unique domain for each element. You do this on the Domains tab. You define a unique domain for each element and then associate the classification and algorithm you want to use for each domain.
In addition to using the Domain settings to determine your inventory of what to mask, a Profiling job uses expressions to identify the data you are seeking. A regular expression is a special text string that defines a search pattern. You can also group expressions into profiler sets, which are defined for a given target, such as financial services or health care.
Masking Engine has a built-in Administrator role, which gives a user complete access to Masking Engine functions. You can also add roles to the Roles Settings. Perhaps you want to define an analyst or developer role, so someone can create masking jobs, or an operator role, to make sure jobs are run consistently.