You are developing a SQL Server Analysis Services (SSAS) cube. You are writing the following Multidimensional Expressions (MDX) statement for use by a calculated measure. The measure computes the sale

NONEMPTYCROSSJOIN returns a non-empty cross-join of multiple sets and is not a time-navigation function.

OPENINGPERIOD returns the first descendant of a specified level within a period, not a member from a parallel prior period.

ORDER sorts a set of members based on an expression and has no time-navigation capability.

ORDINAL returns the zero-based ordinal position of a level in a hierarchy and is unrelated to time period navigation.

PARALLELPERIOD([Date Order].[Calendar].[Calendar Year], 1, [Date Order].[Calendar].CurrentMember) returns the member that is one calendar year prior at the same hierarchical level and relative position as the current member. This is precisely the time-intelligence behavior required to compute sales for the same period in the previous year, using the level, lag count, and current member as its three arguments.

PARENT returns the immediate parent of the current member, which moves up the hierarchy rather than to a parallel period in a prior parent.

PERIODSTODATE returns a set of periods from the start of a containing period up to the current member, not a single parallel period from a prior year.

PREDICT is used with data mining model predictions and has no role in time-period navigation.

PREVMEMBER returns the sequentially previous member at the same level, not the member from one full year prior at the same relative position.

PROPERTIES returns a member or cell property value and has no time-navigation function.