Quality assurance for ERP and development of Registration Training System for Chulabhorn Graduate Institute. In addition, Technical-support assistance was provided for the personnel for workstations of Chulabhorn Graduate Institute so that they could use their systems more effectively. As a system developer, the assignment was developing and maintaining the Registration Training System module which helps facilitate the registration or training of personnel within the organization. The module used Object-oriented programming (OOP) Codeigniter Framework and LAMP. Another task was liaising with Chulabhorn Graduate Institute to resolve issues found with the ISERL ERP System. Problem reports from the customer were verified and if a user error occurred training was provided. In the case where a software defect was found a bug report was sent to ISERL instant. Also monthly status reports were created for management.