Tekmapro: Journal of Industrial Engineering and Management
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Development of an Application Model for Solving the Vehicle Routing Problem (VRP) Using the Nearest Neighbour Approach
Get PDFOptimalisasi distribusi merupakan salah satu bagian terpenting dalam logistik, dengan adanya optimalisasi pada bagian distribusi dapat menekan biaya logistik. Salah satu pendekatan untuk melakukan optimalisasi distribusi yaitu melalui penyelesaian masalah Vehicle Routing Problem (VRP). Biaya logistik salah satunya didapatkan dari jarak rute pengiriman. Penelitian menggunakan deskriptif kualitatif dengan yang mencakup identifikasi node (titik lokasi), jarak antar node, dan kapasitas kendaraan. Metode algoritma Nearest Neighbour digunakan dalam penyelesaian masalah VRP dan diimplementasikan melalui aplikasi yang dibangun menggunakan bahasa pemrograman Delphi. Tujuan utama penelitian ini adalah menghasilkan sebuah aplikasi untuk memudahkan pemahaman dan pembelajaran mengenai penyelesaian VRP. Hasil penelitian menunjukkan bahwa algoritma Nearest Neighbour dapat digunakan secara efektif untuk menyusun rute distribusi yang efisien. Aplikasi ini berguna sebagai media pembelajaran dalam mempelajari konsep distribusi logistik dan penggunaan algoritma Nearest Neighbour menunjukkan efisiensi dalam menyusun rute distribusi dalam skala sederhana
A System Dynamics Approach to Strengthening Egg Supply Chain Resilience in Banten
Get PDFThe growing population of Banten Province, projected to surpass 13.5 million by 2035, is expected to drive increasing demand for affordable and accessible sources of staple protein, particularly eggs. Despite producing over 315 million kilograms of eggs in 2023, the regional egg supply chain faces significant challenges, including feed price volatility, poultry mortality, inadequate infrastructure, and fragmented policy coordination. These issues contribute to supply instability and price fluctuations, which in turn affect both producers and consumers. This study employs a system dynamics approach to develop a comprehensive model of the egg supply chain resilience in Banten Province, utilizing stakeholders’ perspectives through semi-structured interviews and focus group discussions, as well as mental models derived from comprehensive literature reviews. The constructed model reveals and elucidates critical feedback mechanisms within the egg supply chain, including the hen health investment loop, price-mediated mechanisms loop, and cost-induced constraints loop. The findings highlight the critical importance of policy interventions, particularly in the areas of subsidies, infrastructure development, access to financing, and poultry health initiatives to enhance the resilience of the egg supply chain in Banten. The proposed model offers actionable insights for policymakers and establishes a conceptual framework to support future research on the egg supply chain and food system resilience in Indonesia
SOR Framework on Customer Engagement by Using Influencer Marketing in E-Commerce Affiliate Program
Get PDFThis study explores the use of influencer marketing in e-commerce affiliate programs to enhance customer engagement, utilizing the Stimulus-Organism-Response (SOR) framework. The research model incorporates the commercial orientation of influencer Instagram posts, trust in influencers, and purchase intention as key variables. Data analysis and hypothesis testing reveal significant influences, indicating that influencer content on Instagram substantially impacts consumer trust and purchase intention. The findings underscore the potential of influencer marketing strategies to build consumer trust and influence purchasing decisions. The study's insights provide valuable implications for e-commerce businesses seeking to leverage influencer marketing for enhanced customer engagement and brand promotion.
Keywords: Affiliate Program, Instagram, Influencer Marketing, SOR Framework, E-commerc
IMPLEMENTATION OF AN E-COMMERCE BASED ONLINE SALES SYSTEM AT DAPOER LN MSME KUDUS
Get PDFThis research aims to design and implement an e-commerce based website specifically designed to help Dapoer LN MSME in managing and increasing online product sales, in line with the need to adapt to digital technology to face increasingly fierce market competition. The development process covers all stages, from design to implementation, involving MSME business owners as the main users to ensure the features developed suit their needs. This research methodology uses observation to understand business processes and operational needs, interviews to identify challenges in digital marketing, and literature studies to find the best approach in e-commerce design. This website is designed with various main features for business owners, such as product category features, products, orders, coupons, customer data, customer reviews, and reports, as well as features for customers, such as product features, orders, reviews, and payments. The design focuses on user-friendly interface design, data security, and effective digital marketing strategies to improve customer experience and expand the market. With features that support inventory management and customer data analysis, this website is expected to become a strategic tool to increase competitiveness, reduce operational costs, and encourage the growth of Dapoer LN MSME. This research is limited to feature development without including a financial recording system, making it a complete and efficient solution to support the success of Dapoer LN MSME in facing the challenges of the modern technological era.
Keywords: MSME, websites, e-commerce, development, digitalization
 
Combination of BLOCPLAN Algorithm, HIRARC Analysis, and Arena Simulation for Design of Transportation and Heavy Vehicles Facilities
No full textPurpose – The study presented in this paper reports on a pilot implementation of scientific management principles in addressing city government facility problems across divisions. To pursue more effective and efficient results, the Tambaksari site that serves various Surabaya Department of Water Resources and Highway Development (SubDRD) tasks, including welding, storage, repair, drainage work, refueling, and security, covering a 15,457 m2 area is evaluated and improved using facility layout, occupational health and safety, and simulation methods. Existing facilities lack grouping based on activities, resulting in inefficiencies. The site poses potential hazards, such as oil spills and hazardous welding practices. This research seeks to optimize facility layout by implementing occupational health and safety standards for effective, efficient activities, and appropriate control systems.
Methodology – This research identifies facility needs, sizes, and proximity relationships using the BLOCPLAN algorithm. Hazard management employs the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method, identifying hazards through Process Hazard Analysis (PHA) and assessing risk levels with Failure Mode and Effect Analysis (FMEA). Control system planning, based on the hierarchy of control, is integrated into facility layout design. Stakeholder feedback is gathered through a Focus Group Discussion (FGD) to refine alternative designs. Arena software simulation assesses workstation utility, guiding adjustments for optimization.
Findings – The combination of the BLOCPLAN algorithm, HIRARC analysis, and Arena simulation resulted in an estimated design layout that can reduce total out of direction travel distance by 47.32%, backtracking by 43.31%, and cross-movement by 47.37%.
Research Limitations – Despite the practical implications involve shaping a more effective Tambaksari layout for SubDRD operations, potentially improving work productivity, creating a safer work environment, and enhancing maintenance service quality for Surabaya City Government infrastructure, the occupational health and safety aspects in this research are only considered concerning their influence on layout design and the simulations only target the workshop activities.
Originality – This study is original in the scope of Indonesian city government work that rarely implementing scientific management methods in addressing their problems and challenges. In addition, this study provides integrated analysis across divisions in city government which are usually very rigid and limited by bureaucracy
Optimization of Preventive maintenance with Downtime and Setup Time Using Goal Programming Method at XY Sugar Factory
Get PDFThis research analyzes downtime and setup time at XY Sugar Factory for the period May 2023 to September 2023. The main objectives of the study were to evaluate the difference between the actual downtime and setup time and the set targets, as well as optimize operational efficiency through the Goal Programming method. The results showed that the actual downtime at Boiler, Mill, and Power House stations exceeded the target, with a significant positive deviation. Similarly, setup times at all stations were higher than the set targets. Overall, the actual total downtime and setup time exceeded the target with a large positive deviation. This study suggests strengthening the preventive maintenance system, managing setup time more efficiently, and adjusting targets to improve efficiency. The results of this study are expected to provide practical recommendations in reducing downtime and setup time and increasing plant productivity.
Keywords: Downtime, Setup Time, Goal Progamming
 
EDUCATIONAL GAME STORY ADVENTURE OF CAKRA INDEPENDENCE HISTORY VERSION
Get PDFThe educational game “Story Adventure Of Cakra” with the theme of Indonesian independence history is designed to improve students’ understanding and interest in learning, especially among students in grades 3 and 4 of elementary school, through an interactive and fun approach. This game was created using the Game Development Life Cycle (GDLC) method and the Construct 3 engine, with a focus on learning history through adventure gameplay and a quiz system. This study uses a qualitative approach involving students in grades 3 and 4 of elementary school and history teachers as research subjects. Data collection was carried out through interviews, participatory observations, and literature studies. The results of blackbox testing showed that all game features, including the navigation system, gameplay, and quiz-based evaluation features, functioned well. In addition, trials with students and teachers showed that this game was able to attract students’ attention and increase their motivation to learn the history of Indonesian independence. Overall, “Story Adventure Of Cakra” has succeeded in becoming an innovative learning alternative in Indonesian history education. This game has a positive impact on students’ understanding, combines elements of entertainment and education, and supports the creation of a fun and effective learning experience. With its potential, it is hoped that this game can continue to be developed to support history learning at various levels of education.
Kata Kunci: Game edukasi, Sejarah Kemerdekaan, GDLC, Construct 3, Pembelajaran Interaktif
ANALISIS PENGENDALIAN KUALITAS PRODUK DAN KEMASAN TEPUNG CAKRA KEMBAR MENGGUNAKAN METODE STATISTICAL QUALITY CONTROL DAN FAILURE MODE AND EFFECT ANALYSIS DI PT. ISM, Tbk. BOGASARI FLOUR MILLS SURABAYA
Get PDFPT ISM. Tbk. Bogasari Flour Mills Surabaya pada awalnya beroperasi dengan dua unit penggilingan, yaitu unit penggilingan dengan kapasitas produksi 1.200 ton/hari. Selama periode Maret 2024 hingga Agustus 2024, produk tepung terigu Cakra Kembar memiliki tingkat produksi tertinggi yaitu sebesar 163.662 ton. Namun dengan tingginya tingkat produksi Tepung Terigu Cakra Kembar mengakibatkan tingkat kecacatan produk yang tinggi yaitu sebesar 30.327 ton, dengan persentase kecacatan sebesar 18,53% yang melebihi standar toleransi kecacatan Perseroan yaitu 3,84%. Berdasarkan hasil perhitungan RPN untuk FMEA produk tepung terigu cakra kembar diperoleh beberapa risiko yang memiliki tingkat prioritas usulan pengendalian kualitas untuk meminimasi kemungkinan terjadinya kegagalan. Perhitungan nilai RPN sebesar 150 dari jenis kecacatan warna tepung kusam yang terdapat pada proses penggilingan dengan penyebab kecacatan adalah roller mill pada mesin penggilingan yang sudah aus atau kurang perawatan dapat menurunkan efisiensi penggilingan dan menghasilkan tepung dengan kualitas warna yang kurang baik dengan rekomendasi perbaikan Mengganti roller mill yang sudah aus pada mesin penggilingan dengan roller mill yang baru dan hal ini termasuk ke dalam kategori RPN sedang, sehingga masih dalam upaya melakukan perbaikan
ANTECEDENTS AND CONSEQUENCES OF INTENTION SUSTAINABLE CONSUMPTION BEHAVIOR WITH HEALTH CONSCIOUSNESS AS A MEDIATING VARIABLE
Get PDFThis study was conducted to analyze the effect of Social Responsibility Collectivism, External Incentives on Intention Sustainable Consumption Intention, the impact of Intention Sustainable Consumption on Sustainable Consumption Behaviour, and the effect of Sustainable Consumption Behaviour on Sustainable Intention both directly and moderated by Health Awareness. The research design used is quantitative research with causality hypothesis testing. The sample used is respondents who carry out sustainable consumption activities. The sampling technique used was purposive sampling, and the sample used was 385. The data analysis used is SEM using AMOS software. The research findings show that social responsibility and external incentives have been proven to positively affect the intention of sustainable consumption. While Collectivism is not proven to have a positive effect on Intention Sustainable Consumption, Intention Sustainable Consumption is proven to have a positive effect on Sustainable Consumption Behavior, and Sustainable Consumption Behavior has a positive effect on Continuous Intention, but Health Consciousness is not proven to moderate the positive impact of Sustainable Consumption Behavior on Continuous Intention. The results of this study provide information that sustainable consumption activities must pay attention to the behavior of consumers related to social responsibility, external incentives, sustainable consumption intentions, and sustainable consumption behavior
Workplace Environment and Its Effect on Employee Productivity: Insights from the Boyolali Garment Industry
Get PDFThis study aims to analyze the influence of physical and non-physical work environments on employee performance in the garment industry. Both physical and non-physical work environments are crucial factors that affect employee productivity and well-being. The research method employed is a survey with a Structural Equation Modelling (SEM) approach to evaluate the relationships between latent variables, namely physical work environment, non-physical work environment, and employee performance. Data were collected through questionnaires distributed to 39 respondents working in a garment company in Boyolali, Central Java. The analysis results show that the physical work environment has a significant influence on employee performance, with aspects such as temperature, ventilation, noise, and workspace layout contributing positively. On the other hand, the non-physical work environment, such as communication with superiors, self-development, and responsibility, does not show a direct significant effect on employee performance. These findings indicate that improvements in physical aspects are more urgently needed to directly enhance employee performance. However, non-physical factors may require a more strategic and in-depth approach to yield optimal impact