A time hierarchy is a hierarchy from the Time dimension. The Time dimension, its hierarchies, and its levels are a means of organizing the years and time periods (for example, days, weeks, months, and quarters) that will be available for use in setting up views. Stratum.Connector for Viewer creates the Time dimension, its hierarchies, and levels based on the Stratum.Server ViewGroups and View Sets associated with the measure groups selected for your Analysis Services database.
There are two time hierarchies in this example, and both belong to the Time dimension. The Year Months hierarchy () has Year () and Months () levels. The Year Weeks hierarchy () has Year () and Weeks () levels. Other examples of time hierarchies are Year Based Months Based, Rolling Year Based Months Based, and Months.