How easy is to maintain Workday, Oracle Cloud, and SuccessFactors?

I'm an HRIS specialist in managing the portfolio of HR Related IT systems, projects, and changes within the corporate center area. I currently work for a manufacturing company with 10,000+ employees.

Do the big three, Workday, Oracle Cloud, and SuccessFactors, allow us to easily maintain the products ourselves, without developer skills, extensive training, and in-depth knowledge?

Thanks! I appreciate the help. 

Find out what your peers are saying about Oracle, Workday, SAP and others in Benefits Administration. Updated: November 2020.
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