<![CDATA[The development of information technology is driving the transformation of document management from manual to digital systems, including certificate management. PT. Patria Utama Humanindo, as a company engaged in human resource management and development, regularly holds training and activities that result in certificates for participants. However, the process of creating, distributing, archiving, and verifying certificates is still carried out manually, resulting in various problems such as distribution delays, potential data errors, difficulty in retrieval of archives, and the risk of certificate forgery. Therefore, an integrated website-based e-certificate management system is needed to improve the efficiency and effectiveness of certificate management. This research aims to design and develop a website-based e-certificate management system capable of managing participant data, activity data, digital certificate creation, certificate distribution, and certificate authenticity verification using a unique code. A literature review was conducted by examining previous studies related to e-certificates, web-based systems, and system development methods to obtain a clear theoretical basis and research position. The research methodology used was a case study, with PT. Patria Utama Humanindo as the research object. System development was conducted using the Waterfall method, encompassing the stages of requirements analysis, system design, implementation, testing, and maintenance. The system design was modeled using the Unified Modeling Language (UML) with an Object-Oriented Programming (OOP) approach. Research data was obtained through observation, interviews, and documentation studies. The expected outcome of this research is a website-based e-certificate management system design that can be a solution to support centralized, secure, and efficient certificate management at PT. Patria Utama Humanindo.]]>
