Kohesi: Jurnal Sains dan Teknologi

Articles

Vol. 11 No. 4 (2026): Kohesi: Jurnal Sains dan Teknologi, ISSN 3025-1311

REFACTORING UNTUK MENINGKATKAN KUALITAS MAINTAINABILITY PERANGKAT LUNAK PADA SISTEM INFORMASI KEUANGAN

Submitted
September 6, 2026
Published
2026-09-06

Abstract

This study aimed to apply refactoring to improve software quality and maintainability in the Financial Information System (SIK). The research focused on identifying code smells that could affect code readability, maintenance, and software development. The research method consisted of identifying code smells, applying appropriate refactoring techniques, conducting Black-Box Testing, and measuring software metrics before and after refactoring. The results identified six types of code smells, namely Long Method, Duplicate Code, Lack of Validation, Hardcoded Logic, Data Clumps, and Incomplete Abstraction. The refactoring techniques applied included Extract Method, Introduce Parameter Validation, Group Data in Variable, Introduce Missing Methods or Properties, and Query Abstraction. Black-Box Testing was conducted on 22 test cases, with all cases producing results as expected, resulting in a 100% success rate. The Maintainability Index increased after refactoring, indicating improved code maintainability. Therefore, refactoring was effective in improving the structure, readability, and maintainability of the SIK.

References

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