This document provides an overview of human resource information systems (HRIS). It begins with defining HR and information systems. It then discusses the concept and need for HRIS, including how it merges HR processes with information technology. The document outlines the functions an HRIS can track and its various applications and utilities, such as personnel administration, salary administration, and performance appraisal. It also discusses HRIS implementation approaches, benefits, limitations, and includes a case study of an HRIS implementation at SunGard.