While they overlap, HRIS, HCM, and HRMS software each serve slightly different functions. An HRIS is a storage unit for employee data, such as one’s birthdate and social security number, and work-related information, such as payroll stubs and PTO tracking.
An HRMS (human resources management system) is a step up from an HRIS, as it takes and uses this data to make decisions. Recruiting and performance tracking software are examples of HRMS.
An HCM system, or a human capital management system, adds a layer of complexity. HCMs analyze employee data on a higher level to fuel a better work environment, tracking and analyzing things such as employee engagement.