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Indonesian Journal of Innovation Studies
Published by Universitas Muhammadiyah Sidoarjo
ISSN : -     EISSN : 25989936     DOI : https://doi.org/10.21070/ijins.v17i
Core Subject : Science, Education, Social, Engineering,
Computer Science & IT Education Engineering Law, Crime, Criminology & Criminal Justice
Indonesian Journal of Innovation Studies (IJINS) is a peer-reviewed journal published by Universitas Muhammadiyah Sidoarjo four times a year. This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.This journal aims is to provide a place for academics and practitioners to publish original research and review articles. The articles basically contains any topics concerning new innovation on all aspects. IJINS is available in online version. Language used in this journal is Indonesia or English.
Arjuna Subject : Umum - Umum
Articles 129 Documents
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Search results for , issue "Vol. 26 No. 4 (2025): October" : 129 Documents clear
Corrugated Box Production Optimization Using Theory of Constraints (TOC) and DBR - Drum-Buffer-Rope (DBR): Optimasi Produksi Corrugated Box Menggunakan Theory of Constraints (TOC) dan DBR - Drum-Buffer-Rope (DBR) Budiani, Dian Nissa Fitri; Rochmoeljati, Rr
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1422

Abstract

General Background: Efficient production processes are critical for manufacturing companies to meet output targets and maintain competitiveness. Specific Background: PT XYZ, a corrugated box manufacturer, is experiencing production delays due to bottlenecks at specific workstations. Knowledge Gap: Previous studies have rarely explored the integrated application of the Theory of Constraints (TOC) and Drum Buffer Rope (DBR) methods specifically within the corrugated box industry. Aims: This study aims to identify bottlenecks and propose improvements in PT XYZ’s production process by applying TOC and implementing the DBR scheduling method. Results: Bottlenecks were found at the Converting (SK-2) and Stitching (SK-4) workstations. Through the five focusing steps of TOC and DBR’s structured flow management using drums, buffers, and ropes, along with extended work hours at bottleneck stations, throughput increased from IDR 5,424,572 to IDR 8,040,195—a 32.53% rise. Novelty: This study presents a comprehensive application of TOC and DBR in the corrugated box sector, combining it with linear programming to optimize resource allocation and bottleneck exploitation. Implications: The findings highlight how TOC and DBR can serve as a strategic framework to improve operational efficiency and output in manufacturing systems constrained by limited capacity. Highlights: Converting and Stitching stations identified as production bottlenecks. Overtime at bottlenecks increased throughput by 32.53%. TOC and DBR integration proved effective in streamlining production. Keywords: Drum Buffer Rope, Corrugated Box, Throughput, Bottleneck, Theory of Constraints
Waste Analysis in the Power Change Process to Reduce Waste Using the Lean Service Method: Analisis Pemborosan pada Proses Perubahan Daya Untuk Mengurangi Pemborosan dengan Metode Lean Service Ahmad, Dzaki Syahriar; Aryanny, Enny
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1593

Abstract

General Background: Service inefficiencies in utility companies can significantly hinder customer satisfaction and operational effectiveness. Specific Background: At PT XYZ, the power-change service process for Medium Voltage (MV) customers has faced persistent delays and procedural complications. Knowledge Gap: While Lean methodologies have been applied in manufacturing, limited research exists on their implementation within utility service workflows, particularly for MV customer segments. Aims: This study aims to analyze and minimize Waste within PT XYZ’s MV power-change service using the Lean Service approach.  Results: Utilizing Process Activity Mapping (PAM) and Value Stream Mapping (VSM), five major Waste types were identified: document delays (W3), miscommunication (UC2), incorrect materials (II1), material delays (W2), and bureaucratic procedures (L1). Root Cause Analysis with Fishbone Diagrams informed targeted interventions, such as digital forms, visual SOPs, and Just-in-Time material management. These measures raised Process Cycle Efficiency (PCE) from 49.2% to 60.7%, and shortened lead time by 8,160 minutes. Novelty: The integration of PAM and Lean VSM in a utility service context, with tailored communication and digital solutions, represents a novel adaptation of industrial Lean tools. Implications: Findings demonstrate the applicability of Lean Service tools in complex service environments, offering actionable insights for utility firms aiming to enhance performance and customer experience.  Highlights: Identifies key service inefficiencies using Lean tools. Achieves significant gains in efficiency and lead-time. Introduces tailored digital and visual process improvements. Keywords: Lean Service, Process Efficiency, Value Stream Mapping, Waste Reduction, Utility Services
The Supported Diagonal Flexion Kangaroo Position Supports Physiological Stability in Premature Infants Through a Randomized Controlled Trial Sugiarti, Sugiarti; Sunarsih, Sunarsih; Rustina, Yeni; Efendi, Defi
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1394

Abstract

Background: Physiological parameters are vital indicators of neonatal health, particularly in premature and low birth weight (LBW) infants. Specific Background: Kangaroo Mother Care (KMC) enhances neonatal outcomes, yet optimal positioning—such as the recently introduced Supported Diagonal Flexion (SDF) position—requires further validation. Knowledge Gap: Limited evidence exists on whether SDF positioning offers physiological advantages over the conventional upright kangaroo position. Aims: This study aimed to determine the effect of SDF positioning on physiological stability in premature and LBW infants during KMC. Method: A randomized crossover trial was conducted involving 31 mother-infant dyads. Each infant experienced both SDF and upright kangaroo positions in two sessions, with at least one hour per session. Physiological parameters—body temperature, heart rate, and oxygen saturation—were measured at baseline and post-intervention, analyzed using General Linear Model Repeated Measures and Mann-Whitney tests. Results: No statistically significant differences were observed across parameters: temperature (p=0.370), heart rate (p=0.956), and oxygen saturation (p=0.373). Novelty: This is among the first trials comparing SDF and upright KMC positions in a crossover design. Implications: Although physiological differences were not significant, SDF positioning demonstrated safety and maintained stability, supporting its use as an alternative in KMC practices for premature and LBW infants. Highlights: Highlights the safety and stability of SDF positioning in KMC. Uses a robust crossover design for internal control. Supports clinical application despite non-significant differences. Keywords: Kangaroo Mother Care, Supported Diagonal Flexion, Premature Infants, Physiological Stability, Randomized Crossover Trial
Product Defect Level Analysis Bone Plate with The Six Sigma Method and Fuzzy Failure Mode and Effect Analysis (F-FMEA) : Analisis Tingkat Kecacatan Produk Bone Plate dengan Metode Six Sigma dan Fuzzy Failure Mode and Effect Analysis (F-FMEA) Rizkyllah, Arya Bagus; Aryanny, Enny
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1477

Abstract

General Background: Product quality plays a crucial role in influencing consumer decisions, particularly in the medical device industry. Specific Background: PT XYZ is a manufacturer of orthopedic and traumatology implants, where even minor defects can have serious implications. Knowledge Gap: However, limited research has been conducted on identifying and mitigating product defects within this specific manufacturing context using integrated quality improvement methods. Aims: This study aims to evaluate the level and causes of product defects in order to provide targeted recommendations for quality enhancement. Results: The analysis revealed that the most frequent defect occurred in the hole diameter of the implant, with a total of 455 defective units. The process had a Defects Per Million Opportunities (DPMO) of 33,343 and an average sigma level of 3.33. The primary cause was the imprecise initial dimensions of the plate, resulting in a Fuzzy Risk Priority Number (FRPN) of 3.82. Novelty: The study uniquely integrates Six Sigma and Fuzzy Failure Mode and Effects Analysis (FMEA) to prioritize and address quality risks in a high-stakes manufacturing environment. Implications: It is recommended to implement raw material inspection prior to production to reduce defect rates and advance toward zero-defect manufacturing. Highlights: Identified critical defect in implant hole diameter. Integrated Six Sigma and Fuzzy FMEA for risk prioritization. Recommended raw material checks to reduce defects. Keywords: Product Quality, Six Sigma, Fuzzy FMEA, Orthopedic Implants, Defect Analysis
Productivity Improvement through Line Balancing Measurement in the Loom Section Using the Ranked Positional Weight (RPW) Method: Peningkatan Produktivitas Melalui Pengukuran Line Balancing Pada Section Loom Menggunakan Metode Ranked Positional Weight (RPW) Fauzi, Abiyan Falih; Z.S, Joumil Aidil Saifuddin
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1581

Abstract

General Background: The textile industry’s productivity hinges significantly on the efficiency of its production lines. Specific Background: At PT XYZ, the section loom area has persistently failed to meet monthly production targets, achieving less than 80% output. Knowledge Gap: Existing work distribution methods lack optimization, resulting in unbalanced workloads and excessive idle time. Aim: This study aims to enhance productivity through line balancing using the Ranked Positional Weight (RPW) method.Results: Initial conditions with three workstations yielded a line efficiency of 58.92%, a balance delay of 41.08%, and 422.48 minutes of idle time. Reconfiguring the system into four workstations using the RPW method increased line efficiency to 72.12%, reduced balance delay to 27.88%, and decreased idle time to 310.34 minutes. Novelty: The application of RPW in this specific section loom context provides a quantifiable strategy for balancing workloads and improving flow. Implications: These findings confirm the RPW method as an effective tool for optimizing production lines, offering a replicable solution for similar industrial settings to boost overall productivity. Highlights: Highlights the use of RPW to solve production inefficiency. Demonstrates measurable gains in efficiency and idle time reduction. Offers a replicable model for workload balancing in manufacturing. Keywords: Line Balancing, Ranked Positional Weight, Productivity Improvement, Textile Industry, Workload Optimization
Gold Price Fluctuation Drives Customers' Gold Installment Investment Decision: Fluktuasi Harga Emas Mendorong Keputusan Investasi Cicil Emas Nasabah Maysarah, Maysarah; Syafina, Laylan; Nurwani, Nurwani
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1590

Abstract

General Background: Investment decisions are often influenced by macroeconomic variables, among which commodity price fluctuations, such as gold, are prominent. Specific Background: In the context of Islamic banking, Bank Syariah Indonesia (BSI) offers a gold installment product that has seen varied customer responses amidst volatile gold prices. Knowledge Gap: Despite the popularity of gold-based investment products, limited empirical studies address how gold price fluctuations affect customer investment behavior in this specific setting. Aims: This study aims to analyze the extent to which gold price fluctuations influence customer decisions to invest in the gold installment product at BSI KCP Medan A.H Nasution. Results: Using a quantitative method with 71 randomly selected respondents from a population of 250, and applying various statistical tests including hypothesis testing, the findings indicate that gold price fluctuations have a positive and significant effect on investment decisions, with a determination coefficient (R²) of 0.597. Novelty: The study provides empirical evidence linking gold price volatility with investment choices in Islamic gold installment products, a relatively underexplored area. Implications: These results underscore the importance for Islamic financial institutions to monitor gold market dynamics closely, as they significantly shape customer investment decisions. Highlights: Fluctuating gold prices significantly affect customer investment decisions. 59.7% of investment behavior is explained by gold price trends. Study fills a gap in Islamic finance research on gold-based products. Keywords: Gold Price Fluctuation, Investment Decision, Islamic Banking, Gold Installment
Digital Innovation Strategy to Foster Customer Satisfaction Growth at Pegadaian Syariah: Strategi Inovasi Digital untuk Meningkatkan Kepuasan Pelanggan di Pegadaian Syariah Nasution, M.Fuad Munawirsyah; Aslami, Nuri; Kusmilawaty
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

General Background: In the digital era, financial institutions face increasing competition, prompting the need for service innovation. Specific Background: Pegadaian Syariah AR Hakim has adopted digital strategies to enhance service efficiency and customer engagement. Knowledge Gap: However, the extent to which digital innovation impacts customer satisfaction in sharia-based pawnshops remains underexplored. Aims: This study aims to analyze strategies to improve customer satisfaction through digital innovation at Pegadaian Syariah AR Hakim. Results: Using qualitative methods and SWOT analysis, the study identifies 20 alternative strategies derived from internal and external factor assessments, including SO, WO, ST, and WT strategies. Novelty: The study offers a comprehensive application of SWOT in a sharia financial context, integrating customer interviews, digital literacy initiatives, and personalized services. Implications: The findings highlight the importance of balancing digital service development with customer education and technical reliability. These insights can guide similar institutions in formulating adaptive digital strategies aligned with customer expectations and regulatory frameworks.Highlight : Pegadaian Syariah AR Hakim uses digital innovation strategies (via mobile apps, data-driven personalization, etc.) to increase customer satisfaction. A SWOT analysis identified 20 strategic alternatives to address strengths, weaknesses, opportunities, and threats. The organization is in a growth-aggressive strategic position (Quadrant I), enabling it to pursue expansion and service development aggressively. Keywords : Customer Satisfaction, Digital Innovation, SWOT Analysis, Sharia Pawnshop, Pegadaian Syariah  
Experiential Learning Improves Writing Skills and Creative Thinking: Pembelajaran Berbasis Pengalaman Meningkatkan Keterampilan Menulis dan Berpikir Kreatif Hikmah, Nur; Sulfasyah, Sulfasyah; Arif, Tarman A.
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1518

Abstract

General Background: In the era of competency-based education, fostering both writing and creative thinking skills is crucial for elementary students. Specific Background: However, students in remote areas often face challenges in developing these abilities due to limited learning models and contextual support. Knowledge Gap: Prior studies have rarely explored the integrated effects of experiential learning on both writing performance and creative cognition in under-resourced schools. Aims: This study aims to examine the impact of the experiential learning model on students' travel report text writing skills and creative thinking abilities.Results: Using a quantitative method with a non-equivalent control group design, the study involved 47 fourth-grade students at SD Negeri Terpencil 350 Kahaya. Data analysis using t-tests and one-way MANOVA revealed that the experiential learning model significantly improved both writing skills (Sig. = 0.20 < α = 0.25) and creative thinking skills (Sig. = 0.21 < α = 0.25), with a combined multivariate effect (p = 0.202). Novelty: This research highlights the dual effectiveness of experiential learning in enhancing literacy and higher-order thinking simultaneously. Implications: The findings suggest that implementing experiential learning in remote schools can bridge educational disparities by cultivating critical 21st-century competencies. Highlights: Demonstrates experiential learning's dual impact on writing and creativity. Highlights educational challenges in remote school settings. Provides evidence through MANOVA and t-test statistical analysis. Keywords: Experiential Learning Model, Travel Report Writing, Creative Thinking, Elementary Education, Remote Schools
Defect Analysis of Pepari Leather Bags Using Fault Tree Analysis and 5W+1H: Analisis Kecacatan Tas Kulit Pepari Leather dengan Fault Tree Analysis dan 5W+1H Pradana, Billy Gandis; Rochmoeljati, Rr.
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1570

Abstract

General Background: Leather-based products such as bags are highly valued for their aesthetic and durability, yet their production is prone to quality issues. Specific Background: A manufacturing company specializing in leather accessories has consistently encountered product defects, especially in its leather bag line. Knowledge Gap: Despite the importance of maintaining quality in leather goods, there is limited systematic analysis on the root causes of defects using structured diagnostic methods in such contexts.Aims: This study aims to identify and analyze the root causes of leather bag defects using the Fault Tree Analysis (FTA) and 5W+1H methods to propose effective corrective measures. Results: The findings reveal three major defect types: uneven leather texture (0.1018%), scratch marks (0.1577%), and stitching holes (0.1034%). Novelty: The integration of FTA with the 5W+1H framework offers a structured, diagnostic approach rarely applied in small to medium-scale leather production settings. Implications: Recommended improvements include strengthening quality control protocols, enhancing raw material inspection, maintaining equipment reliability, and implementing targeted worker training—providing a comprehensive basis for quality enhancement in leather goods manufacturing. Highlights: Identifies key leather bag defects with precise probability data. Combines FTA and 5W+1H for structured root cause analysis. Proposes actionable improvements to optimize production quality. Keywords: Fault Tree Analysis, Quality Control, Leather Bag, Defect Analysis, Root Cause
Analysis of Defect Reduction in Bone Screw Production Using Six Sigma and TRIZ Methods : Analisis Pengurangan Tingkat Cacat pada Produksi Bone Screw dengan Metode Six Sigma dan Triz Hartono, Daffa Alifio; Sumiati, Sumiati
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1583

Abstract

General background: The medical device industry plays a crucial role in healthcare, demanding consistently high-quality standards. Specific background: In orthopedic implant manufacturing, particularly in bone screw production, even minor defects can compromise product integrity and patient safety. Knowledge gap: However, there is limited quantitative analysis integrating quality control and inventive problem-solving methods to reduce defect rates in this domain. Aim: This study aims to evaluate product defect levels and propose systematic improvements to enhance production quality. Results: Using Six Sigma and TRIZ methodologies, defect data from January to December 2024 were analyzed. The average Defects Per Million Opportunities (DPMO) was 19,990.17, corresponding to a sigma level of 3.55. Novelty: Improvement proposals were formulated through TRIZ principles, including pre-process calibration, stricter raw material control, SOP updates, task reassignment evaluations, implementation of work performance assessments, and scheduled machine maintenance. Implications: These findings offer a structured approach to reducing defects in high-precision manufacturing settings, with implications for broader adoption in quality-critical industries. Highlights: Identifies high defect levels in bone screw production. Applies Six Sigma and TRIZ for data-driven improvements. Recommends targeted actions to boost production quality. Keywords: Defect Rate, Product Quality, Six Sigma, TRIZ Method, Medical Manufacturing

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