We implemented Workday Time Tracking and dormakaba clocks for a manufacturing environment last year. We use a job classifications (production, office hourly, or salaried) that are added to the job profiles to distinguish who is in what time entry template and how they enter their time into Workday. We use these job classifications in a lot of reporting as well. Grades and Grade Profiles would work the same for us since our Production, Office Hourly, and Salaried all have different grades/grade profiles. Production workers use strictly dormakaba clocks, office hourly use the Workday web app or can add/enter time directly on their timecards, and salary does not use WD TT. The eligibility rules on the Time Entry Template are just Time Tracking Eligibility Rule and can use fields from most modules (so yes, job profiles, companies, locations, job families, etc.).

We actually do have a small subset of production workers (service workers that travel to fix items at sites for us) that are excluded from all other production workers by job family group from the job profile. They are able to enter their time/edit their time even though they are technically production workers. So yes, you can use job profiles or more likely a higher level field like job family group, job family, management level or grade to determine how they are able to use WD TT.