
Here is a snapshot of Alberta Agriculture's draft of what taxonomy would look like for the corporate support processes in information management. This is only a partial picture of this category.
But in terms of the structure of a functional taxonomy, "Information Management" would be considered a FUNCTION. "Information Access Management" would be considered a Sub-Function and "Information Request" would be considered an activity.
So in the Government of Alberta model there are three levels. Nominally there is a fourth level, tasks. But for the most part information will be classified with enough granularity with three levels.