Digital personnel file & data model
HiBob
The entire evidence for a personnel file is a homepage bullet: 'Core HR system of record' and 'eSign and document management'. Not one word on effective-dated salary or contract history, org structure or custom fields — and backdated change history is exactly what I need before a retro run, so silence is a red flag, not neutral.
Workday HCM
The HCM overview names a core HR module holding tax, demographic, absence and compensation data, with self-documenting audit trails and configurable workflows, so real employee records exist. But I found no public information on document storage, org structure, custom fields, or effective-dated history of contract and salary changes — for a system that has to carry backdated corrections, that silence is what decides it.