A multidimensional database is an extended form of a two-dimensional data array, such as a spreadsheet, generalized to encompass many dimensions. Dimensions comprise values called members, which are arranged in a hierarchical structure. A dimension is a perspective or view of a specific dataset. A system that supports simultaneous, alternate views of datasets is multidimensional. Dimensions are categories such as time, accounts, product lines, markets and so on. Each dimension contains additional categories that have various relationships. Members exist within a dimension. A dimension can contain an unlimited number of members.
| Number | Name |
|---|---|
| 1 | Dimension |
| 2 | Member |