<![CDATA[Clicklaundryku still faces operational management challenges because several administrative activities rely on manual records. This study develops a web-based Management Information System using a Research and Development (R&D) approach and the Rapid Application Development (RAD) model. The development process consists of Requirements Planning, User Design, Construction, and Cutover. The resulting application supports transaction processing, customer records, complaint monitoring, work-deadline reminders, and automated financial summaries. Black Box Testing indicated that the tested functions operated according to their specifications. Beta evaluation produced feasibility scores of 91.25% from IT experts and 91.6% from users, both classified as very good. The current system does not yet provide a comprehensive profit-and-loss statement. Further development may include multi-branch management to support centralized monitoring of outlet data. The system is intended to assist the digital management of Clicklaundryku and improve service administration. Keywords: Management Information System; Laundry Business; Rapid Application Development; Black Box Testing; Beta Testing Abstrak Clicklaundryku masih menghadapi kendala dalam pengelolaan operasional karena sejumlah kegiatan administrasi masih bergantung pada pencatatan manual. Penelitian ini bertujuan mengembangkan Sistem Informasi Manajemen berbasis web melalui pendekatan Research and Development (R&D) dengan model Rapid Application Development (RAD). Proses pengembangan meliputi Requirements Planning, User Design, Construction, dan Cutover. Aplikasi yang dihasilkan mendukung pencatatan transaksi, pengelolaan data pelanggan, pemantauan komplain, pengingat tenggat pengerjaan, serta penyusunan ringkasan keuangan secara otomatis. Hasil Black Box Testing menunjukkan bahwa fungsi yang diuji berjalan sesuai rancangan. Evaluasi beta memperoleh nilai kelayakan 91,25% dari ahli IT dan 91,6% dari pengguna, yang termasuk kategori sangat baik. Sistem saat ini belum menyediakan laporan laba rugi secara menyeluruh. Pengembangan berikutnya dapat mencakup pengelolaan beberapa cabang agar data setiap outlet dapat dipantau secara terpusat. Secara umum, aplikasi ini mendukung digitalisasi administrasi dan pelayanan Clicklaundryku.]]>
