# Policies for indexing categories

There are two kinds of policies:

- Path policies are based on the path of the category.
- Ordinal policies are based on the ordinal of the category.

Policies are "consulted" with during indexing, for deciding whether a category should be added to the index or not. The two kinds of policies can be used for different purposes. For example, path policies dictates which categories can participate in a drill-down operation, while ordinal policies affect which can be accumulated (e.g. counted).