There is a 3-part structure of information within Stratum.Viewer
that includes dimensions,
hierarchies, and levels. Levels belong
to hierarchies and contain members.
You can see an example of this structure in view explorer. In the following
example, there is a Product Family level () that belongs
to a Product Family hierarchy (
) in the rows.
Levels can be used in several ways, such as displayed on rows and columns of views, used for filtering purposes, and used to build user list expressions.