Inconsistencies in Professor Grade Data

[jerryand100]

Summary: Occasionally there are inconsistencies between the data presented in the 'All Professors' graph and the aggregate data represented by the individual professor graphs for a course.

Description: A specific example I found of this is for the course PL PATH 123 :
https://my.wisc.edu/portal/f/u360303l1s4/p/CourseGuide-Browse-Courses.u360303l1n15/detached/render.uP?pCm=view&pP_topicId=0&pP_action=courseDetail&pP_courseID=015771&pP_subjectId=766&pP_termCode=1182

The 'All Professors' graph shows that a small percentage of of students got an F in the course. When looking through the specific professors to see who flunked someone, all three listed professors show as having given zero F's combined. Such an inconsistency can lead to misleading data.

Severity: Medium -> Although in this case it is a rather small inconsistency, cases like this could lead users to start questioning the overall integrity of data represented in the application.

Suggestion: My initial guess would be that this is due to the fact that not every individual professor who has taught that course has their own individual results graph, thus leading to the 'All Professors' graph being representative of a different set of data than the individual professor graphs.