Using structured MDL

Structured MDL requires that object definitions appear in a specific order or structure. For example, after a data source definition, all the columns in the data source must be defined. Then the associated dimensions are defined, followed by the root category, drill category, levels, and categories.

This structure provides information about the location of each object. For example, to uniquely identify a category in verb MDL, you may need to specify its parents, level, drill category, and dimension. In structured MDL, all this information is supplied by the placement of the category definition in the structured MDL file.

Verb statements can be used independently or in conjunction with structured statements, as long as the verb statements are at the end of the model. After a verb statement, no structured statements can be used.