Journal of Industrial Engineering and Halal Industries

The Initial Development and Validation of Physical, Psychosocial and Fatigue Level Questionnaire

2025-01-03T09:01:43+07:00

The lack of comprehensive tool to assess both risk factors of physical and psychosocial risk factors as well as fatigue level effectively is significant in similar field research. Therefore, the aim of this study is to do the initial development and content validation of a questionnaire that identifies and measures the risk factors influencing the fatigue levels. The questionnaire was developed by implementing adapt method followed by item generation in the initial development. This questionnaire was then validated in terms of content validation by expert panel reviews. The content validity result are as follows: 64-items out of 146-items scale had I-CVI below 1, 24-items with I-CVI of 0.8, and 3-items with 0.7, and the remaining items had I-CVI of below than 0.7. The average value of CVR was 1, and the S-CVI/Ave of the questionnaire was 0.93. Items with content validity of 0.7 and above was maintained, therefore, the questionnaire ended with 87-items. Findings indicates that the questionnaire is valid for assessing the physical and psychosocial risk factors associating with the fatigue levels. This questionnaire can be made a tool in assessing workplace while promote efficiency through this comprehensive tool, contributing to a better understanding of occupational risks and potential interventions.

The Halal Tourism Preferences: The Role of Brand Awareness, Attitudes, and Social Norms Among Muslim and Non-Muslim Travelers

2025-01-06T14:17:03+07:00

This research focuses on the influence of brand awareness, attitudes, and social norms on the intentions of Muslim and non-Muslim tourists to visit Lombok as a Halal tourism destination. Lombok has been designated by the Indonesian government as a center for Islamic tourism, providing a complementary option to Bali’s Hindu cultural tourism. The study utilized the Theory of Planned Behavior and gathered data via an online survey involving 123 participants, 56 non-Muslims and 67 Muslims. The results indicated that Halal brand awareness and social norms did not significantly impact non-Muslim tourists' intentions to visit Lombok. At the same time, brand awareness also did not affect Muslim tourists. Attitudes were identified as the main factor influencing their willingness to visit. Interestingly, the R-squared values differed notably between the two groups, with the variables accounting for 58.1% of non-Muslim tourists' decisions but only 39.9% for Muslim tourists. This research offers new insights into Halal tourism from both Muslim and non-Muslim perspectives.

The Identification and Elimination of Waste Activities in The Gray Yarn Processing Company

2025-01-03T08:24:29+07:00

This study aims to identify the types of waste and recommend improvements to minimize waste that occurs in the gray yarn processing company. Value Stream Mapping (VSM) is used to analyze the flow of materials and information throughout the production process. The main objective is to identify and eliminate waste, thereby improving efficiency and productivity in manufacturing operations. The biggest types of waste in the grey yarn processing production process of the preparation department are Unnecessary motion and Overprocessing waste types at 30% each, Unnecessary Inventory at 20%, and transportation at 20%. The recommendations given can reduce the overall leadtime from 58967 seconds to 58771 seconds.

The Evaluation of the Performance of Automatic Temperature Control Technology in a Closed House Broiler Chicken Production System

2025-01-13T22:46:15+07:00

Abstract

This study evaluates the performance of automatic temperature control technologies in a closed-house system for broiler chicken production. Four key technologies were assessed: CTI 80, CTI Alpha, Punos, and Temptron, based on three main parameters: chicken mortality rate, growth (average final body weight), and production efficiency (Feed Conversion Ratio/FCR). Data were collected through direct observation, daily records, and final measurements on farms with a minimum population of 80,000 chickens per house. The statistical analysis revealed that CTI Alpha demonstrated the best performance with the lowest mortality rate (255 chickens) and high stability in temperature control. CTI 80 ranked second with performance close to CTI Alpha, followed by Punos. In contrast, Temptron exhibited the lowest performance with the highest mortality rate (595 chickens) and high data variability. The One-Way ANOVA test showed significant differences among the tested technologies (p < 0.05), while the Post Hoc Games-Howell analysis confirmed that CTI Alpha, CTI 80, and Punos performed significantly better than Temptron. This study recommends that farmers adopt CTI Alpha or CTI 80 technologies to optimize broiler chicken production. These technologies not only enhance productivity by reducing mortality rates but also support industry sustainability through resource efficiency and adaptability to climate change. This study provides valuable insights for farmers in selecting appropriate technologies tailored to their specific needs and contributes to the broader understanding of effective temperature control systems in broiler chicken farming.

The Overall Labor Effectiveness (OLE) Method for Analyzing Employee Performance in the Musical Instrument Industry

2025-01-15T12:09:43+07:00

The production processes in the musical instrument industry are highly diverse, ranging from manual operations to full automation. The musical instrument industry examined in this study is predominantly characterized by manual production processes. In manual production, the role of operators is crucial in determining productivity levels. The Buffing Section is a workgroup within the painting department responsible for polishing components of musical instruments. Observations conducted from September to November revealed that the productivity of this group had not met the company’s target of 82%. Productivity was recorded at 70% in September, 77% in October, and 72% in November. To evaluate this condition, operator performance effectiveness was measured using the Overall Labor Effectiveness (OLE) method. OLE is used to assess labor productivity efficiency in manufacturing by examining the cumulative impact of three elements—availability, performance, and quality—on output. To identify the priority factors affecting productivity, the Analytical Hierarchy Process (AHP) method was employed. Additionally, Root Cause Analysis (RCA) was conducted to analyze the causes of problems and propose improvements. The results of the study showed an OLE value of 76%, indicating that the operational performance effectiveness was below the global standard. AHP analysis revealed that the primary factor influencing the low OLE value, which should be prioritized for problem analysis and improvement, was the quality factor, with an eigenvector value of 0.70. To further identify quality-related issues, RCA analysis highlighted the most dominant defects based on a Pareto diagram, namely rough surfaces (69.74%) and dull finishes (15.61%). The primary causes of these defects were, Uneven operator skills, Improper machine settings, Inadequate sanding processes, Incorrect pressure during the buffing process, Excessive or insufficient use of wax, Poor workplace cleanliness