"Department Name" Attribute Missing from "Workforce Management - Person Real Time"

Summary

"Department Name" Attribute Missing from "Workforce Management - Person Real Time"

Content

Hi Experts,

While trying to build a custom OTBI Analysis on  "Workforce Management - Person Real Time" Subject Area I found that "Department Name" field is missing but "Manager Department Name" exists. (This is on Release 13 20 A)

Wondering why so?

I understand if there are no (I mean none of the Assignment related attributes on this subject area as not all person would be employees). But how come we can get "Manager Department Name" and not "Department Name"

Is it a miss on intended functionality ?

Any pointers would be appreciated.