%A NIM.: 21106050006 Rahma Bintang Pratama %O Dr. Agung Fatwanto, S.Si., M.Kom. %T RANCANG BANGUN SOFTWARE ENDURANCE TESTING MENGGUNAKAN METODE EXTREME PROGRAMMING %X Along with the growth of internet users, performance testing of web applications has become a crucial aspect for ensuring long-term system stability. Endurance testing is one of the performance testing methods used to assess an application's resilience when operated continuously under a specific load. However, several existing testing tools present limitations, such as being command-line based without a graphical interface, requiring the use of specific programming languages that are not user-friendly, producing output in limited formats, and having paid licenses. This project aims to design and develop endurance testing software for evaluating the performance of web applications. The design and development were conducted using the Extreme Programming method through an iterative approach focused on user feedback. The evaluation results show an average System Usability Scale (SUS) score of 78,72222222 with a margin of error of ±14,9071195%, resulting in a confidence interval ranging from 66,98700647 to 90,45743797. The interpretation of this interval indicates that the software falls within Grade C to Grade A+ category, with ratings from OK to Best Imaginable according to the Adjective Ratings, falls into the Marginal to Acceptable category on the Acceptability Ranges, and is classified from Passive to Promoter on the Net Promoter Score (NPS) scale. %K Aplikasi Web, Endurance Testing, Extreme Programming, Pengujian Kinerja, Software %D 2025 %I UIN SUNAN KALIJAGA YOGYAKARTA %L digilib71142