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All Journal Jurnal Optimasi Sistem Industri Enrichment: Journal of Multidisciplinary Research and Development
Haikal, Riyan
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Humanities Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Optimization of Web-Based Integrated Management System Audit Process with System Development Life Cycle (SDLC) Appro Haikal, Riyan; Arhami, Arhami; Iskandar, Iskandar
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 5 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i5.440

Abstract

PT Pupuk Iskandar Muda as a strategic industrial company has implemented the Pupuk Iskandar Muda Management System (SMPIM) which integrates various ISO and non-ISO standards. In the implementation of SMPIM's internal audit, there are operational constraints, especially in the management of follow-up audit findings that are still carried out manually and separately, causing time inefficiencies and prone to errors. This research aims to optimize the audit process of an integrated management system through the development of a website-based system using the System Development Life Cycle (SDLC) approach. The research method used a quasi-experiment pre and posttest without control group involving 41 internal auditors. Data analysis used descriptive statistics, Mann-Whitney U test, gap analysis, and Analytical Hierarchy Process (AHP). The results showed that the website system managed to significantly reduce the audit completion time from an average of 55.90 days to 26.35 days (p-value < 0.001). The AHP evaluation showed that the website method obtained a priority value of 0.873 compared to the manual method of 0.604. Gap analysis showed a variation in implementation achievement between management systems, with a significant increase in SMAP ISO 37001:2016 from 93% to 97%, while other systems experienced a decrease or stabilization. The development of a website system has proven to be effective in optimizing the internal audit process by providing easy access, real-time monitoring, and improving overall operational efficiency.
Pendekatan Simulasi untuk Analisis Antrian pada Bengkel Servis PT. X Sentia, Prima Denny; Ilyas, Ilyas; Haikal, Riyan
Jurnal Optimasi Sistem Industri Vol. 15 No. 2 (2016): Published in November 2016
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1787.175 KB) | DOI: 10.25077/josi.v15.n2.p105-113.2016

Abstract

PT. X is an authorized dealer and service provider of a reputable car product that provides sales and maintenance services. Total number of counters and stalls owned by PT. X cannot be considered optimal based on the number of cars that will be serviced. Long queues cause customers postponinge the maintenance service and reschedule them to another day. The purpose of this study is to analyze the queue characteristic of the simulation results in the service counters and to design improvement of the scenarios. The study was conducted to implement a simulation model on a service system in order to determine an optimal number of service stations which is appropriate with the waiting time that has been targeted by the company. The analysis of the scenario carried out refers to the target that needs to be achieved by the company that is 15 minutes waiting time to call by counter and 120 minutes waiting time to service. Based on the possibilities occurred, there are 11 proposed improvement scenarios that can be applied in the company. The results from the analysis stated that scenario No. 8 that add two counters and two maintanance stalls in the service station has average waiting time which closed with targeted time set by the company. Therefore, scenario No. 8 is chosen as a proposed improvement actiion. By implementing this scenario it is expected that average waiting time to call by a counter is only on 16,845 minutes on Thursday and the average waiting time to service is only 124,63 minutes on Wednesday.
Co-Authors Arhami, Arhami Ilyas Ilyas Iskandar Iskandar Sentia, Prima Denny