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All Journal Devotion: Journal of Research and Community Service Asian Journal of Social and Humanities
Budi Prasetiya, Kukuh
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Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice

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Analysis of Quality Control Strategy Using The Statistical Process Control (SPC) Method In The Mass Product Housing Project at Java Residence Cluster Budi Prasetiya, Kukuh; Patriadi, Andi; Sajiyo, Sajiyo
Asian Journal of Social and Humanities Vol. 3 No. 4 (2025): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v3i4.476

Abstract

The advancement of industrial activities requires high-performance management to achieve desired outcomes, particularly in complex projects such as construction. This study aims to analyze the application of the Statistical Process Control (SPC) method to improve product quality in the construction project of the Java Residence Cluster in Sidoarjo. Managing cost, time, and quality remains a significant challenge in construction projects. This research focuses on identifying and addressing complaints or defects in housing units that affect the quality of the project, using SPC as a quality control method. Data were collected from primary sources, specifically from the staff of PT. Mitra Usaha Konstruksi, as well as secondary data from relevant literature. The analysis shows that the application of SPC successfully reduced the number of complaints or defects from 5.95 complaints per unit in Cluster 1 Phase 3 to 3.12 complaints per unit in Cluster 2 Phase 1, with an effectiveness rate of 52.47%. Pareto analysis identified that the majority of complaints were related to doors, windows, and wall paint, suggesting that these areas should be prioritized for improvement in future construction projects. The study recommends the continued use of SPC to improve product quality and identify the root causes of defects to ensure compliance with the developer's quality targets.
Analysis of Time Control Strategies Using The Critical Path Method (CPM) In The Development of The Java Residence Cluster For Mass-Product Budi Prasetiya, Kukuh; Patriadi, Andi; Sajiyo, Sajiyo
Devotion : Journal of Research and Community Service Vol. 6 No. 1 (2025): Devotion: Journal of Community Research
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/devotion.v6i1.25403

Abstract

The increasing complexity and scale of industrial and construction projects demand efficient management techniques to ensure timely delivery, cost-effectiveness, and adherence to quality standards. This study focuses on the implementation of the Critical Path Method (CPM) in managing the construction of the Cluster Java Residence in Sidoarjo to enhance time efficiency. The research investigates the effectiveness of CPM in identifying and mitigating delays by analyzing project activities, their interdependencies, and schedule flexibility using forward and backward pass calculations. Secondary data from project schedules and primary data from field observations were analyzed to identify critical paths and optimize project timelines. Results indicate that the implementation of product quality control in the construction of housing units in the Java Residence Cluster is still under control, although the average number of defects or complaints per housing unit is relatively high. The issues of defects or complaints in the construction of housing units in the Java Residence Cluster are caused by factors related to humans, machines or tools, materials, and work methods.
Co-Authors Patriadi, Andi Sajiyo Sajiyo, Sajiyo