Enterprise resource planning systems are adopted to improve productivity and overall business performance in organizations. Implementation of these systems requires considerable financial and labour investment and therefore, the managers must understand the benefits of the system and the aspects of the system which need improvement. An approach to evaluate and track an ERP system’s success in corporate organizations is therefore, important. In this study, the success of ERP system is measured through the Ifinedo model and a comparison between private and public organizations is made. Interviews conducted by the researchers introduce factors influencing ERP implementation success in organizations. In addition, to understand why some organizations have achieved more ERP success than others, questionnaire responses to some identified critical success factors for ERP implementation are analyzed.