Voutama, A. and Novalia, E. 2022. Web-Based Graduation Plaque Information System Design Using UML and Waterfall Model: Web-Based Graduation Plaque Information System Design Using UML and Waterfall Model. Syntax : Jurnal Informatika. 11, 01 (Jun. 2022), 36–49. DOI:https://doi.org/10.35706/syji.v11i01.6412.