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HEURISTIC HEURISTIC — 2024-10-31

Identification of Surabaya Community Behavior Towards the Use of Wira Wiri Suroboyo as a Mode of Public Transportation

Yohanes Okta Dwi Prastyo — 2025-01-13

Wira Wiri Suroboyo is a public transportation system operated by the Surabaya city government since 2023, aimed at reducing traffic congestion and environmental pollution caused by private vehicle usage. Despite its introduction, this mode of transportation has not yet achieved a significant shift among residents toward adopting Wira Wiri Suroboyo. To address this, the government must understand the behavior of Surabaya's residents regarding public transportation usage. Behavioral insights can serve as critical input for designing effective strategies to encourage people to transition to Wira Wiri Suroboyo. This research focuses on identifying the behavioral patterns of Surabaya residents who choose Wira Wiri Suroboyo as their public transport option, utilizing the Theory of Planned Behavior (TPB) framework. TPB provides an analytical model to evaluate behavior based on an individual’s perceived control over their actions. Data for the study was collected through questionnaires distributed to Surabaya residents who use Wira Wiri Suroboyo. The findings reveal that attitude, perceived behavioral control, and behavioral intentions significantly influence user behavior. However, the subjective norm variable does not substantially impact the behavioral intentions of the Surabaya community in this context.

Investigating Communication Failures in AMR Meter at PT PLN UP3 Bali Selatan: A Failure Mode and Effect Analysis Approach

I Komang Wijaya Kusuma Liska — 2025-01-13

Automatic Meter Reading (AMR) is an automated system for reading electricity meter data that allows for remote monitoring and control of energy supply. The background of this research is based on the high level of communication failure in the AMR system, which significantly impacts the quality of electricity measurement and transactions. This study aims to identify the sources of communication failure in the Automatic Meter Reading (AMR) system at PT PLN UP3 Bali Selatan and estimate the highest potential risks using the Failure Mode and Effect Analysis (FMEA) method. Data was collected through direct observation and interviews with the AMR team over two months, as well as historical data held by the AMR team. The FMEA method identified and prioritized failure causes based on the value of the risk priority number (RPN). The Pareto diagram is used to help focus attention on the central issues that need to be addressed in improvement efforts. The analysis results indicate five critical communication failures in the Automatic Meter Reading (AMR) system. The most critical, “Can't connect to modem (1),” has an RPN of 225, followed by “Can't connect to modem (2)” (RPN 175) and “Modem no Answer” (RPN 125). The findings emphasize prioritizing the “Can't connect to modem (1)” failure due to its high risk.

Sustainable Redesign of Plastic Packaging: Transition Single-Layer for Enhanced Efficiency and Circular Economy

Asri Dwi Puspita — 2025-01-13

The flexible packaging industry faces increasing demand to balance product functionality with environmental sustainability. This study focuses on redesigning plastic packaging by transitioning from dual to single-layer structures. The six-phase product development methodology was employed to assess this transition's technical and economic impacts. The findings show that the single-layer design reduces raw material usage by 20%, lowers production costs by 7.5%, and shortens production time by 780 minutes per 8,000 meters of packaging. Although slight increases in Water Vapor Transmission Rate (WVTR) and Oxygen Transmission Rate (O2TR) were observed, the changes remained within acceptable industry standards, with minimal impact on product shelf life. The new design also offers significant environmental advantages, simplifying recycling processes and supporting circular economy principles. Furthermore, the House of Quality (HoQ) analysis revealed that the redesign effectively addresses critical customer needs, particularly regarding durability, affordability, and delivery efficiency. This research demonstrates the potential for sustainable innovation in the packaging industry. It provides a pathway for companies seeking to reduce environmental impacts while maintaining product performance.

Measuring the Logistics Performance Index on the Logistics Market Evidence from the Indonesian logistic industry

Pipit Sari Puspitorini — 2025-01-13

Performance Index is a tool for logistics bridging gaps that aims to measure supply chain efficiency, especially distribution. Reliability of delivery in the supply chain is key to logistics performance because consumer characteristics require a high degree of certainty about when and how to carry out processes. This study aims to determine the Logistics Performance Index model for Asian countries and its impact on world trade. This study is quantitative research by collecting forty logistics performance data based on data from the World Bank with logistical metrics related to six operational performances: tracking and tracing, customs, timeless, infrastructure, and international shipments. Descriptive analysis using Principle Component Analysis and TANAGRA software. The results of this study show that the two principal component (ζ) models formed significantly affect the best logistics performance in Asia.

Measurement of Mental Workload with The NASA-TLX Method on Employees of PT XYZ

Salsabila Aulia Zahra — 2025-01-13

PT XYZ is the largest maritime industry in Indonesia. The company focuses on producing ships and repairing ships both domestically and abroad. Human resources are the most important aspect in determining the success of a company. To increase employee work productivity, companies must pay attention to the physical workload and mental workload felt by employees. Uneven workload can cause complaints, so that productivity decreases and gets less than optimal results. Therefore, a mental workload measurement was conducted to determine the level of mental workload of employees using the National Aeronautics and space Administration Task load Index (NASA-TLX) method. The NASA-TLX questionnaire was distributed to 8 workers of the ISO, Standardisation and Calibration Department. Based on the highest WWL average value of 81.3 with a very high category. To improve the mental workload, the company is advised to evaluate labour needs in other departments or divisions to support additional employees through job rotation, provide regular job training to improve employee skills and speed in completing work, provide a storage area for tools to be calibrated so that employees are not disturbed by tools that accumulate in the workspace, procure new tools to support the increasing workload, conduct monitoring and job evaluation.

Optimizing Project Duration and Cost of Support Ship through Time-Cost Trade-Off Analysis and Microsoft Project Application: A Case Study at PT XYZ

Firda Amalia Putri — 2025-01-13

The construction of a ship project requires time control to avoid delays because late fines will be imposed. This control can be carried out using project management control tools, namely project scheduling. This research aims to optimize project duration and costs by finding the critical path using the help of Microsoft Project Software and accelerating to avoid project delays using the time cost trade off method. The data collection method was carried out by interviews and direct observation at the project location and obtained through PT XYZ internal parties. The research results showed that there was a delay of 12 days on the Support Ship construction project with 10 critical activities on the production floor. Alternative acceleration is done by adding working hours (overtime) by 2 hours, 3 hours and 4 hours. After calculating the acceleration for critical activities that have the lowest cost slope values, The optimal duration and costs were obtained by adding 3 hours of overtime so that the processing time could be accelerated from 236 days to 228 days with a total acceleration cost of IDR 53,295,000.

The Application of SWOT Analysis in Increasing The Sales of INOAC Foam Mattress Type EOM D-24 Yellow at CV King Foam Nusantara

Henri Ponda — 2025-01-13

This research aims to enhance the sales of INOAC EOM D-24 Yellow foam mattresses at CV. King Foam Nusantara by employing a SWOT analysis (Strengths, Weaknesses, Opportunities, Threats). This analysis is conducted to evaluate both internal and external factors influencing the marketing strategy. A SWOT matrix is utilized to identify the company's strengths, weaknesses, opportunities, and threats, while a SWOT Cartesian Diagram is employed to visualize alternative marketing strategies. Research findings indicate that the company is positioned in quadrant I with a positive differential score of +1.04 for strengths and weaknesses, and +0.44 for opportunities and threats. The recommended strategies include brand strengthening, customer service optimization, product design innovation, and increased promotional activities. The implementation of these strategies is expected to bolster CV. King Foam Nusantara's competitiveness and foster business growth.

Quality Control Analysis of Wood Pellet Products at PT XYZ Using the Seven Tools and New Seven Methods

Ahmad Habib Ramadhani — 2025-01-13

Quality is a factor that determines the success of a product in market competition. PT XYZ, which produces wood pellets, is experiencing problems related to the quality of its products. The company wants to control the quality of its products in order to reduce losses due to product defects. Product quality control is carried out using the seven tools method to determine the causes of defects and the new seven tools method which is used to see the corrective actions that must be taken based on the factors that cause product defects. The results showed that there are 3 types of defects in wood pellet products, namely water content that is too high, less density, and shape that is too small. From the total amount of 12,782 kg of defective products, 34.24% of them are the types of defects of too high moisture content, 30.50% defects of insufficient density, and 35.26% defects of too small shapes. The proposed improvements to prevent errors that can cause product defects can be done by tightening the implementation of company SOPs, improving worker performance and skills, optimizing machine performance, and improving the quality of the raw materials used.

Production Process Analysis to Reduce Defective Products through the Application of Pareto Diagram and The Eight Disciplines Problem Solving Method

Dian Setiya Widodo — 2025-01-13

Quality control involves efforts to uphold and enhance product quality in order to align with the specifications established by customers. Employing a combination of the Pareto diagram and the 8D (Eight Disciplines Problem Solving) method represents a robust approach to systematic problem-solving, particularly in manufacturing and quality settings. These two methods can be used together to identify the root causes of problems and then implement effective solutions. This study aims to analyze quality improvement efforts in the production of fiber drum paper as an eco-friendly packaging, focusing on dent defects in the upper body area of the drum, which were found in the crushing and curling process at PT. X. The findings indicated that there were still several defects in the current production process, with the most significant defects occurring in fiber drum paper products. where the dent defect in the upper body area of the drum reached 2%. After improvements were made using the Pareto diagram, Fishbone diagram and the eight disciplines problem-solving method, the dent defect in the upper body area of the drum was successfully reduced to 0.8%, meeting the set improvement targets.

Optimizing Classroom Performance in Higher Education: Efficiency Study with Data Envelopment Analysis Method

Erni Puspanantasari Putri — 2025-01-13

Higher education has an important mission in human resources development. One of the main reasons for improving the quality of education is the efficiency of classroom management. Good management means that every resource used—lecturers, time for teaching, the number of students, technology, and teaching materials—produces optimal learning outcomes; not every course can attain the same degree of efficiency. This article thus applies the method of Data Envelopment Analysis in calculating efficiency in classroom management and highlights areas where improvement needs to occur. It is, therefore, possible to achieve optimal performances in the higher learning institutions based on the model parameters used: number of lecturers, teaching hours, number of students, student/lecturer ratio, learning resources, and the learning technology. The outcome variables are the average grade of students, students' attendance rate, the percentage of students having grades A, AB, & B, and the percentage of assignments completed on time. This study involved 10 courses as decision-making units (DMUs). The results showed that 9 courses achieved an efficiency score of 1 (efficient DMU), while one course, namely Production Planning and Control (Class A), had an efficiency score of 0.976, indicating inefficiency DMU. Further analysis revealed some factors that made this inefficient: high student-to-lecturer ratios, constraints in the use of learning technology, and shortages in teaching materials. From these, this study therefore finds it necessary to recommend more learning technology, improvement in the student-to-lecturer ratio, and enrichment of teaching materials to achieve better class performance. The result of the study is expected to help the universities focus on ways to enhance education management and thereby take strategic steps to improve the efficiency of the lecture classes.

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HEURISTIC HEURISTIC — 2024-10-31