However, human resources information systems ( HRIS) is more than a simple aggregation mechanism for inventory control and accounting ; it is the foundation for a set of management tools enabling managers to establish objectives for the use of their organization's human resources and to measure the extent to which those objectives have been achieved. As managers come to recognize both the essentiality and feasibility of sophisticated management information systems for monitoring human resources, more and more computerized personnel management information systems such as HRIS will be installed (Orlando and Johnson, 2004).