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Journal : OPSI

Proposed improvement of product support packaging material defects using the Cross-Industry Standard Process for Data Mining (CRISP-DM) approach Fitriana, Rina; Habyba, Anik Nur; Nabiha, Gina Almas; Mareta, Sannia
OPSI Vol 18 No 1 (2025): OPSI - June 2025
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v18i1.11803

Abstract

This research was conducted because the defect rate of packaging materials supporting lithos M products exceeded the Company's tolerance standard of 2%. This research aims to identify the causes and provide suggestions to improve the Quality of product support packaging materials. The methods used in data mining with the CRISP-DM (Cross-Industry Standard Process For Data Mining) approach. The Business Understanding stage determines the problem and research objectives, Power Business Intelligence, SIPOC (Supplier, Input, Process, Output, Customer) Diagrams, Operation Process Chart, QC Action, and CTQ (Critical to Quality). The Data Understanding stage creates a Control P Chart, calculates DPMO and the sigma level obtained by the unscramble machine dented bottle value 762.31 with a Sigma level of 4.66, Sticker 2nd defect Internal 187.47 with a sigma level of 5.06, Cap 2nd defect internal 67.18 with a sigma level of 5.32, and uses Fault Tree Analysis. The Data Preparation stage performs data cleaning, integration, transformation, and preprocessing. The Modelling stage makes classification with C4.5 and the Cart decision tree algorithm. The evaluation stage uses a Confusion Matrix accuracy of 78.8 percent and 89.4 percent, respectively. The Deployment stage produces improvement proposals by creating a Dashboard, Standard Operating Procedure, and Check Sheet.  
Enhancing customer satisfaction towards the service quality of Soekarno-Hatta International Airport using servqual and binary logistic regression Graciela, Felice; Satitidjati Dewayana, Triwulandari; Habyba, Anik Nur
OPSI Vol 17 No 2 (2024): ISSN 1693-2102
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v17i2.11930

Abstract

The world is experiencing rapid change, leading to transformations in human lifestyles that necessitate adaptation. However, the aviation industry appears to have reached a point of stagnation. Soekarno-Hatta International Airport must adapt to the new needs and demands of passengers by implementing necessary changes and incorporating the latest available technologies. To gain a deeper understanding of passenger satisfaction regarding the service quality at Soekarno-Hatta International Airport, the SERVQUAL method and Binary Logistic Regression Analysis will be employed. Both methods aim to identify services that has significant impact and determine the relative influence of these services on the overall service quality at Soekarno-Hatta International Airport. The results of the SERVQUAL method in this study indicate that there are 14 services at Soekarno-Hatta International Airport that do not meet passenger satisfaction standards, with a need for particular attention to the reliability dimension. Subsequently, the Binary Logistic Regression analysis results indicate that only parking price and ambiance significantly influence passenger satisfaction, with the likelihood of increasing satisfaction being 1.7732783 and 2.0773711 times respectively. Focus should be placed on improving operational accuracy through stringent Standard Operating Procedures (SOPs) and comprehensive staff training, reducing supplementary expenses like toll charges, expanding parking facilities, and optimizing parking flow, improving illumination, customer engagement, and noise control measures. 
Living room design using Kansei Engineering approach with toddler safety aspect Hanifati, Azizah Nurul; Azmi, Nora; Habyba, Anik Nur
OPSI Vol 17 No 2 (2024): ISSN 1693-2102
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v17i2.13236

Abstract

Toddlers experience physical accidents in the house at a rate of 90 percent. Based on observations, the living room was the most dangerous part of the building compared to other parts. That condition made the parents feel that the safety of their little one was not fully supported. This study aims to design a living room that is safe and comfortable for Toddlers. The design output supports the interior designers in creating a safer Toddler environment. Kansei Engineering guides the identification of living room design for parents looking for their toddlers' safety. The Kansei words gathered from the study are comfortable, multifunction, safe, easy to clean, simple, large capacity, and harmonious. These Kansei words injected into the concept design, which is the harmonious design concept and the simple design concept, by using Principal Component Analysis. The harmonious design has a wood table (X5.1) with a sofa (X7.2) and TV (X9.1) and no flower vase (X11.2) as its decoration, while the simple design has a plastic table (X5.2) with a wood seat (X7.1) and with flower vase (X11.1) but no TV (X9.2). The insights gathered were designed with Blender 3D and integrated with virtual reality Oculus simulation through the SketchFab website.
Co-Authors Adrian Sjamsul Qomar Agung Sasongko Ahmad Farhan Ahmad Farhan Ahmad Farhan, Ahmad Amal Witonohadi Ananda Kejora Rotty Annisa Dewi Akbari, Annisa Dewi Cahyanti, Annisa Clara Dwi Dadang Surjasa, Dadang Datu Mas Satriaji Daniswara Dedy Sugiarto Dewayana, Triwulandari Satitidjati Dian Mardi Safitri Didien Suhardini Dinda Rhamanda Docki Saraswati Dorina Hetharia Elisa Anggraeni, Elisa Emelia Sari Erliza Hambali Fanny Nurul Amalia Ferren Liling Sia Fitriana, Rina Graciela, Felice Hanifati, Azizah Nurul Idriwal Mayusda Ika Wahyu Utami Ilham, Ahmad Indah Permata Sari Indah Permata Sari Indah Permata Sari Iveline Anne Marie Iwan Purwanto Johnson Saragih Johnson Saragih, Johnson Johson Saragih Kemala Sari, Debbie Krismantan, Thalia Putri Lailatus Siami Liang, Yun-Chia Maharani, Annastasya Devita Mareta, Sannia Maulidya , Rahmi Meisy Kharisma Idris Mustaqim, Daffa Akiel Nabiha, Gina Almas Nabila, Shadrina Putri Nadia Mufida Nadia Mufida Nora Azmi Novia Rahmawati Novia Rahmawati Parwadi Moengin PUDJI ASTUTI Ramadhani, Resty Ayu Rambung, Richard Antonius Resty Ayu Ramadhani Rhamanda, Dinda Richard Antonius Rambung Rina Fitriana Rina Fitriana, Rina Rully Mardjono Sari, Emilia Satitidjati Dewayana, Triwulandari Suryana, Yunita Friscilia Tania Theodora Thalia Putri Krismantan Tiena Gustina Amran Tiena Gustina Amran, Tiena Triwulandari Satitidjati Dewayana Triwulandari Satitidjati Dewayana Triwulandari, Triwulandari Tryantomo Lokhilmahful Palgunadi Wawan Kurniawan Wawan Kurniawan Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Yun-Chia Liang