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Ketergantungan global yang meningkat pada platform web untuk mengelola komunitas, transaksi, dan acara khusus menuntut validasi fungsional yang ketat guna memastikan keandalan sistem dan kepuasan pengguna. Studi ini bertujuan untuk menganalisis secara kuantitatif kualitas fungsional Website Nganjuk Runners dengan memverifikasi kinerjanya secara sistematis terhadap persyaratan fungsional dan teknis yang telah ditetapkan. Penelitian ini menggunakan pendekatan evaluatif kuantitatif dengan metode Black Box Testing. Kasus uji dirancang secara sistematis menggunakan teknik Equivalence Partitioning dan Boundary Value Analysis untuk mencakup semua domain input dan delapan modul fungsional inti secara komprehensif. Sebanyak 193 Kasus Uji dieksekusi, mereplikasi skenario interaksi pengguna di seluruh fungsi penting, termasuk Registrasi, Manajemen Profil, dan Tiket Event. Validasi fungsional keseluruhan mengungkapkan tingkat keberhasilan yang rendah, yaitu hanya 64,77% (125 kasus uji berhasil dari 193 total kasus). Angka ini secara signifikan berada di bawah ambang batas penerimaan standar industri yang umum (>85%). Kegagalan kritis terkonsentrasi pada Modul Manajemen Profil (47,22% keberhasilan), yang mengungkap risiko integritas data pengguna dan keamanan, serta Modul Pendaftaran Event (57,63% keberhasilan), yang mengindikasikan cacat operasional dalam fungsi bisnis inti sistem. Penelitian ini menyumbangkan metrik kuantitatif untuk kesiapan sistem dalam konteks platform komunitas. Implikasinya adalah rekomendasi terprioritas yang jelas untuk segera dilakukan debugging dan regression testing yang berfokus pada 68 kegagalan yang teridentifikasi guna mengurangi risiko operasional yang tinggi, meningkatkan stabilitas sistem, dan mencapai metrik kualitas minimal sebelum platform dinyatakan siap untuk penggunaan resmi.

Software testing is a critical phase in information system development to ensure the system's quality and reliability. This study aims to evaluate the reliability and functionality of PT Perta Sakti Abadi's financial information system using the black-box testing method with the Equivalence Partitioning (EP) technique. This technique allows input data to be grouped into valid and invalid categories, minimizing test cases without reducing testing coverage. The testing focuses on the login feature as the system's primary component by evaluating various input combinations. The testing scenarios include boundary conditions to ensure the system handles inputs correctly in various situations.The results indicate that the system successfully verifies valid credentials, rejects access with invalid data, and provides informative error messages. Additionally, the system demonstrates resilience in handling testing scenarios, including inputs with special characters and empty fields. Input validation mechanisms function optimally, supporting secure user access and ensuring the login feature aligns with functional specifications. This successful testing forms a strong foundation for testing other modules, such as multi-level authentication and data encryption. Thus, the Equivalence Partitioning technique within the black-box testing method proves effective in enhancing the quality of web-based financial information systems.

In the digital business environment, web-based Point of Sale (POS) systems play a vital role in supporting transaction processing, inventory management, and operational decision-making. Ensuring the functional reliability of such systems is essential, particularly in critical authentication features that regulate user access. However, undetected functional errors within login and registration modules may disrupt operations, compromise data integrity, and reduce user experience quality. Therefore, this study aims to evaluate the functionality of the Wingpos website, focusing specifically on the login and registration features. The research applies the Black Box Testing approach using the Equivalence Partitioning technique, which enables systematic functional validation by classifying input data into representative valid and invalid partitions without requiring access to source code. The testing process involved designing structured test cases, executing input scenarios, and comparing actual system outputs with expected results. The findings reveal that most authentication processes function in accordance with system specifications, as seven out of ten test scenarios produced expected outcomes. Nevertheless, three discrepancies were identified, including inconsistent error message validation in the login feature and the system’s inability to properly verify invalid email domains during registration. These results indicate that while the system demonstrates general functional reliability, certain validation mechanisms require refinement. In conclusion, the application of Black Box Testing with the Equivalence Partitioning technique proves effective in identifying functional gaps and supporting quality assurance processes in web-based POS systems, particularly in strengthening authentication feature reliability and improving overall system performance

This research focuses on evaluating the Combox web application, a digital tool designed to help Food and Beverage (F&B) business owners strengthen their online presence. The analysis was carried out through Black Box Testing, specifically using the Equivalence Partitioning method, to assess core functionalities like login, logout, product management, and pagination. The findings reveal that while most features function as intended, there are issues with product addition and editing, as well as pagination when no data is available. These results highlight areas that need refinement to improve the application’s reliability and user experience. In summary, this research supports the advancement of a digital platform that enables F&B businesses to harness technology effectively in today’s competitive landscape.