<![CDATA[Usaha Mikro, Kecil, dan Menengah (UMKM) kuliner bergerak sering kali menghadapi kendala visibilitas digital akibat mobilitas lokasi yang tinggi. Di sisi lain, pemanfaatan teknologi Location-Based Service (LBS) konvensional memicu kerentanan privasi dan ancaman keamanan fisik karena titik koordinat presisi pedagang terekspos ke publik secara terus-menerus. Penelitian ini bertujuan mengimplementasikan metode Progressive Location Precision pada aplikasi pemetaan berbasis web bernama Jajanskuy untuk memitigasi kerentanan tersebut. Sistem dikembangkan menggunakan kerangka kerja Laravel 12, basis data MySQL, dan pustaka Leaflet.js dengan mengadopsi metode Waterfall. Mekanisme keamanan yang diusulkan membagi akses lokasi menjadi dua tingkat: pengaburan lokasi (location obfuscation) sejauh 30–60 meter untuk pencarian publik, dan penyingkapan koordinat presisi (unlock) berbatas waktu 20 menit (session boundary) khusus untuk pengguna terverifikasi. Pengujian fungsionalitas menggunakan metode Black-box Testing membuktikan seluruh 17 skenario fitur keamanan berjalan sukses. Selanjutnya, pengujian User Acceptance Test (UAT) dieksekusi melalui lembar persetujuan fungsional (sign-off sheet) oleh 3 partisipan perwakilan kunci (1 Pembeli dan 1 Penjual berbasis smartphone, serta 1 Admin Suku Dinas PPKUKM berbasis PC/komputer). Hasil UAT membuktikan 100% modul sistem berfungsi sesuai spesifikasi. Aplikasi Jajanskuy terbukti mampu menyeimbangkan kebutuhan utilitas informasi konsumen dengan keamanan privasi lokasi pedagang. Mobile culinary Micro, Small, and Medium Enterprises (MSMEs) frequently face digital visibility constraints due to high location mobility. Conversely, the use of conventional Location-Based Service (LBS) technology raises privacy and physical security vulnerabilities, as merchants' precise coordinates are continuously exposed publicly. This research aims to implement the Progressive Location Precision method in a web-based mapping application named Jajanskuy to mitigate these vulnerabilities. The system was developed using the Laravel 12 framework, MySQL database, and Leaflet.js library, adopting the Waterfall method. The proposed security mechanism divides location access into two levels: location obfuscation by 30–60 meters in public search mode, and revealing precise coordinates (unlock) strictly limited to a 20-minute timeframe (session boundary) for verified users. Functionality testing using the Black-box Testing method demonstrated that all 17 security feature scenarios operated successfully. Furthermore, User Acceptance Test (UAT) was executed through functional sign-off sheets by 3 key representative participants (1 smartphone-based Buyer, 1 smartphone-based Seller, and 1 PC-based South Jakarta PPKUKM Admin). The UAT results demonstrated that 100% of the system modules function according to specifications. The Jajanskuy application is proven to balance consumers' information utility needs with vendors' location privacy.]]>
