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All Journal Industrika : Jurnal Ilmiah Teknik Industri
Anisti, Tiara Nanda
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Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering

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Optimasi Penjadwalan dan Percepatan Proyek Upgrade H2S Analyzer dengan Metode CPM dan PERT Al Veronica, Uzi; Sutrisno, Sutrisno; Anugrah, Siti Nabilah Putri; Anisti, Tiara Nanda; Wildan Fatchan Maulidin
Industrika : Jurnal Ilmiah Teknik Industri Vol. 9 No. 4 (2025): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/9zsx2031

Abstract

Project delays are a major threat in project management that can result in increased costs and decreased operational efficiency. Therefore, an appropriate planning method is needed to optimize the schedule and reduce the risk of delays. This study aims to analyze the critical path and determine the optimal time in the H₂S Analyzer Upgrade project using the Critical Path Method (CPM) and Program Evaluation and Review Technique (PERT). CPM is used to identify critical activities, namely contracts (A), field surveys (B), specifications (C), H₂S Analyzer (F), tubing & tubing connections (G), sample conditioning systems (H), accessories (I), electrical & instrument cables (J), bulk materials (K), and spare parts for one year of operation (L). The results of the analysis show that the CPM method estimates the project duration of 235 days. Meanwhile, the PERT method provides an estimate of completion in the range of 221 to 251 days, with a probability of project success being completed in 221 days of 0.14%, and in 251 days of 99.86%. The implementation of this method improves the accuracy of project scheduling and supports efficiency in resource management. The results of this study recommend combining CPM and PERT with other optimization techniques, such as crashing, to improve project time and cost efficiency. Keywords: CPM, Critical Path, PERT, Project Management, Time Optimization  
Klasifikasi Pengendalian Persediaan Bahan Baku Chemical Cigarette Paper Pada PT XYZ Dengan Metode Always Better Control (ABC) Anisti, Tiara Nanda; Nisah, Firda Ainun; Arifin, Jauhari
Industrika : Jurnal Ilmiah Teknik Industri Vol. 10 No. 1 (2026): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/msn5e397

Abstract

PT XYZ is a company that produces cigarette paper, in which the manufacturing process requires chemical raw materials as a key component. As an exporter, the company must maintain continuous production, even during logistical disruptions such as road closures during the Eid al-fitr holiday. This condition requires bulk ordering of raw materials before the holiday, making proper storage essential ti preserve material quality over an extended period. This study aims to classify chemical raw materials using the ABC (Always Better Control) method, which categorizes items based on annual consumption value and warehouse movement into category A (fast moving), B (medium moving), and C (slow moving). The results show 2 materials fall into category A, 1 into category B, and 4 into category C. This classification is expected to help the company develop more efficient inventory control strategies and adaptive storage systems to meet operational demands. Keywords: ABC Method, Chemical Raw Materials, Cigarette Paper, Inventory Control
Co-Authors Al Veronica, Uzi Anugrah, Siti Nabilah Putri Jauhari Arifin Nisah, Firda Ainun Sutrisno, Sutrisno Wildan Fatchan Maulidin