RANCANG BANGUN SISTEM INFORMASI SALES ORDER SERVICE PART BERBASIS WEB DENGAN APPROVAL BERJENJANG DIGITAL DI PT HMMI

Prasetyo Edi Pamungkas, Dinar Nugroho Pratomo, S.Kom., M.IM., M.Cs.

2026 | Tugas Akhir | D4 Teknologi Perangkat Lunak

Proses penanganan sales order (SO) service part pelanggan luar negeri di PT Hino Motors Manufacturing Indonesia (PT HMMI) yang sebelumnya manual berbasis Microsoft Excel rentan terhadap human error dan keterlambatan persetujuan. Penelitian ini bertujuan membangun sistem informasi SO berbasis web dengan fitur persetujuan berjenjang digital. Sistem dikembangkan menggunakan metode Waterfall, framework ASP.NET Core 8.0, arsitektur MVC, SQL Server, dan library antarmuka DevExtreme untuk optimasi rendering data masif. Hasil Black Box Testing mengonfirmasi seluruh fungsionalitas berjalan tanpa kegagalan. Evaluasi UAT memperoleh tingkat penerimaan 100?ri Staf PIC dan Department Head, serta 96?ri Division Head. Pengujian performa frontend (Google Lighthouse) sebanyak lima kali pengujian meraih rata-rata performance score 92,6 (Dashboard) dan 99 (Create SO). Pengujian backend (Load testing) menunjukkan response time stabil di bawah 1000 ms dengan error rate 0%, didukung optimasi in-memory caching yang mempercepat waktu respons hingga 99,08%. Sistem ini teruji fungsional, andal, dan layak diimplementasikan untuk operasional perusahaan.

The handling of service part sales orders (SO) for overseas customers at PT Hino Motors Manufacturing Indonesia (PT HMMI) was previously conducted manually using Microsoft Excel, making it prone to human errors and approval delays. This study aimed to develop a web-based SO information system featuring a digital multi-level approval mechanism. The system was developed using the Waterfall method, ASP.NET Core 8.0 framework, MVC architecture, SQL Server, and DevExtreme library to optimize massive data rendering. Black Box Testing confirmed all functionalities operated without failure. User Acceptance Testing (UAT) achieved a 100?ceptance rate from the PIC Staff and Department Head, and 96% from the Division Head. Frontend performance testing (Google Lighthouse) across five test iterations recorded an average performance score of 92.6 (Dashboard) and 99 (Create SO). Backend evaluation (Load testing) demonstrated a stable response time below 1000 ms with a 0% error rate, supported by in-memory caching that accelerated response times by 99.08%. The system is functionally validated, highly reliable, and suitable for company operations.

Kata Kunci : sistem informasi, ASP.NET Core, DevExtreme, Google Lighthouse, Load testing