Land Plot Sales Information System with Automatic Installment Tracking

Authors

  • Julius Eka Rahmad✉ Politeknik Negeri Sriwijaya, Palembang, Indonesia Author
  • Sulistiyanto Politeknik Negeri Sriwijaya, Palembang, Indonesia Author
Diajukan 20 Sep 2025 Diterbitkan 15 Des 2025
DOI: https://doi.org/10.59025/f5614101

Keywords:

sales information system, land plot, multi-year installment, waterfall method, property developer

Abstract

Mid-scale property developers in Indonesia commonly still rely on manual ledger-based recording for land plot sales transactions and multi-year installment tracking, leaving data vulnerable to loss and making arrears detection difficult. This study designs and builds a prototype Land Plot Sales Information System at CV. Ariesta Prima Palembang using a five-phase Waterfall method, with web-based implementation (PHP, MySQL, Bootstrap); data collection was carried out through observation of transaction flows, interviews with five informants, and analysis of contract documents from four projects. The database design was upgraded from the two-table structure of the manual system to a normalised five-table model (project, plot, customer, contract, installment) that accommodates multi-project dimensions and automated installment schedules. Black-Box testing of 26 scenarios showed 100% functional conformance; User Acceptance Testing with 11 cross-role respondents yielded a Likert mean of 4.3 out of 5 with 87% acceptance, where the Finance Division gave the highest score due to reduced manual reconciliation workload. The contributions of this study include mapping the requirements of mid-scale property sales information systems that are rarely addressed in Indonesian retail literature and a database design that can serve as a reference for similar developers.

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Cover JTDS Vol 3 No 2 (2025)

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How to Cite

Land Plot Sales Information System with Automatic Installment Tracking. (2025). Journal of Technology and Data Science, 3(2), 191-203. https://doi.org/10.59025/f5614101