Journal of Science, Technology, and Innovation
Inventa: Journal of Science, Technology, and Innovation is a peer-reviewed open-access journal published by CV Scripta Intelektual Mandiri. It publishes original research and applied studies in science, technology, and innovation, including fields such as engineering, ICT, materials science, renewable energy, and environmental technology. The journal is published three times a year (April, August, December) and operates under a no-fee policy. All articles are licensed under the Creative Commons Attribution 4.0 (CC BY 4.0) license.
Optimizing Risk-Based Infrastructure Management in Flood Disaster Reduction in Urban Areas
Urban flooding represents a systemic risk emerging from the interaction between hydrological hazards, spatial transformation, and infrastructure vulnerability, demanding a management paradigm that transcends conventional engineering responses. This study develops a non-empirical conceptual framework for optimizing risk-based infrastructure management to strengthen urban flood resilience. The framework integrates infrastructure asset lifecycle management, disaster risk theory, and urban governance into a multilayer analytical model that explains causal relations among planning, implementation, maintenance, and adaptive capacity. A systematic literature synthesis and thematic-critical analysis were employed to construct stable conceptual propositions and evaluate internal coherence across disciplines. Findings indicate that preventive planning, adaptive asset management, institutional coordination, and participatory monitoring operate as interdependent mechanisms that reduce system fragility and enhance operational learning. The proposed model provides an analytical structure for evaluating infrastructure effectiveness without dependence on a single empirical context while preserving methodological rigor. This study contributes theoretically by linking risk governance with lifecycle infrastructure management and methodologically by offering a replicable conceptual synthesis for resilient urban systems.
Infrastructure Management, Flood Risk, Urban Resilience, Asset Lifecycle, Adaptive Governance.
Copyright (c) 2026 Buyung Mantap, Yoka Mahendra, Hendret Susanto (Author) https://creativecommons.org/licenses/by/4.0
Identification and Analysis of Toll Road Project Implementation Risks Based on Severity Index: A Case Study of the Prabumulih–Muara Enim Toll Road
This study investigates dominant risks affecting time and cost performance in the Prabumulih–Muara Enim Toll Road Project (Zone 5) within the Trans Sumatra Toll Road corridor. The research adopts an empirical quantitative approach using a two-stage questionnaire and semi-structured interviews involving 24 key project stakeholders selected through purposive sampling. Risk variables were initially compiled from literature, project documents, and preliminary site observations, then validated through a Guttman-scale screening process to ensure contextual relevance. The validated risks were subsequently assessed using the Severity Index (SI) to quantify perceived probability and impact levels, and further mapped into a Probability–Impact Matrix to classify risk criticality and prioritize mitigation. The findings demonstrate that dominant risks emerge not only from technical construction factors but also from managerial coordination, procurement delays, logistical constraints, and safety and quality compliance, which collectively intensify schedule slippage and cost escalation. Methodologically, the integrated SI–PIM framework strengthens risk prioritization by combining structured screening, quantitative severity measurement, and decision-oriented mapping, offering a replicable model for toll road risk governance in large-scale infrastructure projects.
Severity Index, Toll Road Project, Risk Analysis, Probability–Impact Matrix, Time and Cost Performance.
Copyright (c) 2026 Kodrat Insany Taqwim, Firdaus Firdaus, Farlyn Rosyad (Author) https://creativecommons.org/licenses/by/4.0
The Economic Value Contribution of Cinnamon as a Non-Timber Forest Product in Gayo Lues District
Cinnamon as a non-timber forest product plays a significant economic role in supporting rural livelihoods in Gayo Lues Regency, Aceh Province. This study analyzes the economic value contribution of cinnamon cultivated and utilized by communities in several villages of Kutapanjang District. The primary product utilized is cinnamon bark, while the stem is not commercially traded and is instead used as household fuelwood. The findings indicate that the average annual income derived from cinnamon bark reaches Rp26,557,283 per household, contributing 71% to total household income. In comparison, secondary livelihood activities contribute Rp2,213,106 or 29%. These results demonstrate that cinnamon functions as the dominant income source within the local agroforestry system. The aggregate economic structure reflects relatively stable returns, indicating resilience against short-term market fluctuations. The integration of household-based forest resource management and local economic activities highlights cinnamon’s strategic role in strengthening village economies. Therefore, cinnamon as a non-timber forest product represents a sustainable economic driver that supports rural development and forest-based livelihood systems in Gayo Lues Regency.
Cinnamon, Non-Timber Forest Product, Economic Contribution, Rural Livelihood, Agroforestry.
Copyright (c) 2025 Andi Fauzan R Pohan, Nurhasanah Hasbi, Anshari Anshari, Astri Winda Siregar (Author) https://creativecommons.org/licenses/by/4.0
Designing a Digital Donation Website Information System to Support Transparency and Public Reporting at the Indonesian Red Cross in Tangerang City
This study designs and implements a web-based digital donation information system to strengthen transparency and public reporting for PMI Kota Tangerang. The system was developed through an empirical software engineering approach grounded in direct organizational observation, enabling the requirements to reflect real donation management practices, administrative constraints, and public accountability needs. The proposed platform integrates public information dissemination, online donation workflows, automated transaction recording, and reporting features within a unified architecture. The public-facing interface enhances accessibility to organizational updates and donation programs, supporting donors’ trust formation through consistent institutional identity and clear information structure. On the operational side, an administrative dashboard provides centralized control over donation data, transaction status management, and structured records to support timely and verifiable reporting. Functional validation was conducted using black-box testing to ensure that core modules operate correctly across defined user scenarios, including donation submission, data storage, report generation, and role-based access. The results indicate that the system is technically feasible and organizationally relevant, offering a scalable digital mechanism to reduce reporting inconsistencies and improve public confidence in humanitarian fundraising.
Digital Donation, Transparency, Public Reporting, Web-Based Information System, PMI Kota Tangerang.
Copyright (c) 2025 Arif Marjuki, Haryanto Haryanto , Dedy Iskandar, Andri Cahyo Purnomo, Arif Novrizal (Author) https://creativecommons.org/licenses/by/4.0
Implementation of Business Intelligence in Supporting Decision-Making for Population and Family Planning Programs: A Qualitative Study at the Population Control and Family Planning Office of Sorong City
This study examines the implementation of Business Intelligence (BI) in supporting decision-making for population and family planning programs at the Population Control and Family Planning Office of Sorong City. Using an empirical qualitative approach, the research explores how BI systems are utilized, how analytical outputs inform managerial decisions, and which organizational factors shape their effectiveness. Data were collected through in-depth interviews, observations, and document analysis involving policymakers, program managers, data analysts, and technical staff. The findings reveal that BI facilitates data integration across program units, enhances the timeliness and relevance of information, and supports evidence-based planning, monitoring, and evaluation. Dashboards and analytical reports enable decision-makers to identify demographic trends, assess program performance, and adjust interventions responsively. However, the effectiveness of BI is contingent upon data governance, human resource capacity, and institutional commitment to data-driven practices. The study highlights BI as a technological and managerial innovation that strengthens decision quality and institutional resilience in local public sector governance, particularly in population and family planning services..
Business Intelligence, Decision-Making, Population Program, Family Planning, Public Sector, Qualitative Study.
Copyright (c) 2025 Ulil Albab Al Jawad (Author) https://creativecommons.org/licenses/by/4.0
Seismic Vulnerability Index in Pantai Cermin District Using Microtremor Data
This study assesses seismic vulnerability in Pantai Cermin District, West Sumatra, using microtremor measurements analyzed through the Horizontal to Vertical Spectral Ratio (HVSR) method. Ambient vibration data were systematically acquired to characterize local site effects by deriving dominant frequency (f₀) and amplification factor (A₀), which reflect the dynamic behavior of near-surface soil layers. These parameters were integrated to compute the seismic vulnerability index (Kg) as an indicator of potential soil deformation under seismic loading. The results reveal pronounced spatial variability in f₀, A₀, and Kg values, strongly controlled by geological conditions. Areas dominated by young alluvial deposits and unconsolidated sediments exhibit low dominant frequencies, high amplification, and elevated Kg values, indicating high susceptibility to seismic ground motion amplification. Conversely, zones underlain by compact volcanic and intrusive rocks show more stable seismic responses. The spatial correspondence between high Kg zones and densely populated areas highlights increased seismic risk due to the interaction between site effects and exposure. The consistency between HVSR characteristics, geological framework, and vulnerability patterns demonstrates the robustness of the microtremor-based approach for seismic microzonation. This study provides a scientific basis for risk-informed land-use planning and earthquake mitigation strategies in seismically active regions.
Seismic Vulnerability Index, HVSR, Microtremor, Site Effect, Microzonation
Copyright (c) 2025 Agustia Agustia, Akmam Akmam (Author) https://creativecommons.org/licenses/by/4.0
Preliminary Study on the Application of Sustainable Construction Management Principles in Regional Infrastructure Projects
This study examines the initial patterns of sustainable construction management implementation in regional infrastructure projects through a qualitative structured literature review. The analysis positions construction management as a strategic nexus linking environmental, economic, and social dimensions within public infrastructure development. The findings reveal that current practices remain largely dominated by conventional management paradigms emphasizing short-term cost efficiency and project completion, while sustainability principles are often reduced to administrative compliance. Environmental considerations are primarily treated as regulatory obligations, economic aspects focus on initial construction costs, and social dimensions are limited to operational safety measures. Institutional capacity constraints, limited human resource competencies, and procurement mechanisms oriented toward lowest-price selection emerge as major barriers to holistic sustainability integration. Although regulatory pressures and technological advancements provide potential enabling conditions, their effectiveness is constrained by fragmented governance structures and weak organizational learning mechanisms. This study contributes conceptually by offering an integrative framework that clarifies the structural gaps between sustainability discourse and managerial practice in regional infrastructure projects.
Sustainable Construction Management, Regional Infrastructure, Public Projects, Governance Capacity, Sustainability Integration.
Copyright (c) 2025 M. Wisridani Paradiang (Author) https://creativecommons.org/licenses/by/4.0
Risk Analysis and Hazard Control in Online Leak Sealing (OLS) Work at PT PLN Nusantara Power Up Rembang Using the JSA Method
Online leak sealing (OLS) operations in power generation facilities are characterized by a high level of complexity and risk, as they are conducted on pressurized and high-temperature systems without shutting down the operating unit. Such conditions necessitate a systematic and context-sensitive risk analysis approach to effectively minimize the potential for occupational accidents. This study aims to analyze risks and hazard control in OLS activities at PT PLN Nusantara Power UP Rembang using the Job Safety Analysis (JSA) method. The research adopts an empirical design comprising a preliminary survey, direct field observations, worker-focused discussions, and a review of operational procedure documents. Each stage of the OLS process is decomposed into micro-level activities, followed by the identification of potential hazards, associated probabilities, and consequences to construct a comprehensive JSA matrix. The findings indicate that the sealing compound injection and leak testing stages exhibit the highest concentration of risk, predominantly associated with exposure to pressurized fluids, hazardous chemicals, and potential equipment failure. The contextualized application of JSA provides a more granular depiction of risk profiles and serves as a foundation for formulating hierarchical control measures, thereby contributing to the strengthening of occupational health and safety management in high-risk online maintenance activities.
Hazard Control, Job Safety Analysis, Occupational Safety, Online Leak Sealing, Work Risk.
Copyright (c) 2025 Odik Duwi Saputro, Imam Hermanto (Author) https://creativecommons.org/licenses/by/4.0
Preliminary Study on the Utilization of Fly Ash and Bottom Ash Waste as Alternative Materials in Construction
The utilization of fly ash and bottom ash as alternative materials in construction has expanded in response to sustainability imperatives and increasing volumes of industrial by-products. This study consolidates and critically organizes existing scientific knowledge to clarify the relationships between material characteristics, mechanical performance, and sustainability considerations associated with fly ash and bottom ash. The analysis demonstrates that their mechanical behavior is highly dependent on physical–chemical properties, mixture design, and environmental context, indicating that performance cannot be generalized across applications. Although environmental benefits are frequently emphasized, sustainability is often framed in a simplified manner, with limited integration of life cycle impacts, social dimensions, and institutional constraints. The findings also reveal methodological inconsistencies and conceptual gaps that hinder knowledge transfer and practical implementation. By structuring dispersed evidence into a coherent analytical perspective, this study contributes to a clearer understanding of the conditions under which fly ash and bottom ash can be responsibly utilized. The outcomes provide a foundation for guiding future experimental development and supporting more informed decision-making in sustainable construction systems.
Fly Ash, Bottom Ash, Sustainable Construction, Alternative Construction Materials, Material Sustainability.
Copyright (c) 2025 Buyung Mantap (Author) https://creativecommons.org/licenses/by/4.0
Callus Induction from Goroho Banana Anthers (Musa acuminata L.) Using 2,4-D and BAP
Callus induction is a critical stage in anther culture for supporting the propagation and genetic improvement of local banana cultivars. This study evaluated the effect of different combinations of 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (BAP) on callus induction from goroho banana (Musa acuminata L.) anthers. Observations were conducted for 30 days after induction, focusing on callus emergence time and morphological characteristics, including color and texture. The results demonstrated distinct responses among treatments. The combination of 1.5 ml 2,4-D and 1.5 ml BAP produced the fastest callus initiation with an average of 13.17 days after induction and generated friable callus with a pale yellow coloration, indicating high cellular activity. Lower growth regulator concentrations delayed callus formation, while higher concentrations promoted color changes associated with early tissue differentiation. No callus formation was observed in the absence of exogenous growth regulators. These findings highlight the importance of balanced auxin and cytokinin concentrations in regulating anther-derived callus induction and provide a physiological basis for further development of goroho banana anther culture systems.
Anthera Culture, Callus Induction, 2,4-D, BAP, Musa Acuminata L.
Copyright (c) 2025 Risna A. Onu, Jusna Ahmad, Febriyanti Febriyanti, Novri Youla Kandowangko, Devi Bunga Pagalla, Indriati Husain (Author) https://creativecommons.org/licenses/by/4.0
Optimizing Link and Match as an Effort to Improve the Relevance of Vocational Schools to the Business World and Industry Based on the Website of Yuppentek 1 Vocational School in Tangerang City
Vocational education, particularly Vocational High Schools (SMK), plays a strategic role in preparing superior human resources who are competent in their fields and ready to enter the workforce. In this context, the government is encouraging the implementation of the Link and Match program as an effort to improve alignment and gaps between education and the needs of the workforce and the industrial world. However, the implementation of the Link and Match program in vocational high schools in the Tangerang area is currently still carried out conventionally. The communication process, recording collaborations, and managing Industrial Work Practice activities still rely on correspondence, manual messages, and face-to-face meetings. This condition results in data not being documented centrally, making it difficult for schools to obtain comprehensive information regarding program implementation. Therefore, an analysis of the current system is necessary to understand the current Link and Match implementation mechanism. Synchronizing the vocational curriculum with the needs of graduate users through the Link and Match program is expected to produce graduates with a professional attitude, achievement motivation, competence, and high competitiveness. The evaluation of this system is carried out using the Black Box Testing method.
Link and Match, Optimization, Relevance, Business World, Website
Copyright (c) 2025 Eduard Hotman Purba, Haryanto Haryanto, Muhammad Zaidan, Mochamad Raihan Fadli (Author) https://creativecommons.org/licenses/by/4.0
Design and Implementation of a Web-Based Book Borrowing Information System for Private Libraries Using the Laravel Framework
This study aims to design and implement a web-based book borrowing information system for a private library using the Laravel framework. The research adopts an applied research approach within a software engineering paradigm, employing the Waterfall model to ensure systematic development, clear documentation, and procedural replicability. The study was conducted at Zahra’sBook, a small-scale private library characterized by limited resources and manual transaction management. Data were collected through structured observation, semi-structured interviews, and analysis of system artifacts, supported by relevant scientific literature. System development followed sequential stages, including requirements analysis, system design, implementation, and functional testing using black-box testing techniques. The results demonstrate that the developed system effectively supports core library services, including catalog management, borrowing and returning transactions, penalty calculation, and reporting. The implementation improves operational efficiency, data accuracy, and service transparency for both administrators and users.
Web-Based Library System, Book Borrowing, Laravel Framework, Waterfall Model, Private Library.
Copyright (c) 2025 Tsania Aulia, Najla Nafila, Fero Triando, Fikri Hilabi (Author) https://creativecommons.org/licenses/by/4.0
Basic MikroTik Configuration and Network Implementation in IT Operational Activities at PT Pembangunan Jaya Ancol
This internship (Kerja Praktik) was conducted at PT Pembangunan Jaya Ancol in the IT and Project Management Office Division with the objective of providing practical work experience for students in the field of computer networking and information technology. The main focus of this internship was the basic configuration of MikroTik devices and their implementation in supporting the company’s IT operational activities. The methods applied during the internship included workplace observation, hands-on practice in network device configuration, and documentation of IT operational activities. The basic configurations performed consisted of network topology design, IP address configuration on ether and bridge-hotspot interfaces, as well as network connectivity testing to ensure proper system operation. In addition, the student was involved in supporting IT operational tasks, such as preparing computer equipment and network systems at the Ancol ticketing area ahead of the New Year celebration. The results of this internship indicate that basic MikroTik configuration plays a crucial role in maintaining network stability and ensuring smooth IT operations within the company. Through this internship, the student gained technical knowledge and practical experience that are highly relevant as preparation for entering the professional world in the field of information technology.
Computer Networks, Internship, IT Support, MikroTik, Network Configuration.
Copyright (c) 2025 Hiya Iklima Usman, Ahmad Fikri Salim, Muhammad Fikri (Author) https://creativecommons.org/licenses/by/4.0
Design and Implementation of a Web-Based Digital Image Repository Using React.js and Laravel
The development of web technology has increased the need for digital data storage and management systems that can be accessed online. One form of such systems is a web-based digital image repository that allows users to store, search, view, and download image collections efficiently. This study aims to design and implement a web-based digital image repository using React JS as the frontend and Laravel as the backend supported by RESTful API. The system development method used is the Waterfall method, which includes requirement analysis, system design, implementation, and testing stages. The results show that the system successfully provides core features such as gallery display, image search, and image download. Functional testing indicates that the search and download features work properly according to user needs. Although the login and upload features are still under development, the system has generally achieved the research objective as an accessible and efficient web-based digital image repository
Digital Repository, Image Repository, React JS, Laravel, RESTful API.
Copyright (c) 2025 Poozasya Niagaralillah, Muhamad Fikri (Author) https://creativecommons.org/licenses/by/4.0
Analysis of Gamification Elements and Micro-interactions in the Duolingo Application: A Systematic Literature Review
Low user engagement and long-term retention remained key challenges in mobile learning applications despite advancements in instructional content and functionality. This study aimed to examine the role of gamification elements and micro-interactions in enhancing user engagement in mobile-based language learning applications, with a focus on Duolingo and similar platforms. A Systematic Literature Review method was employed, following the stages of identification, screening, eligibility assessment, and inclusion. Literature searches were conducted through Google Scholar and ResearchGate, covering studies published between 2020 and 2025. Ten articles that met the inclusion criteria were analyzed using qualitative synthesis. The results indicated that gamification elements such as points, badges, leaderboards, and streaks contributed to increased learner motivation and consistent application use. In addition, micro-interactions supported user engagement by improving system clarity, interaction comfort, and feedback responsiveness. This study concluded that a balanced integration of gamification and micro-interactions was essential for developing sustainable and effective mobile learning applications.
Duolingo, Gamification, Micro-Interactions, Mobile Learning, User Engagement.
Copyright (c) 2025 Yasmin Yasmin, Hifni Fadhilah, Muhamad Fikri, Miftahul Huda (Author) https://creativecommons.org/licenses/by/4.0
Digital Transformation in Education and the Use of Communication Technology by Students
This study examines digital transformation in higher education through the lens of university students’ use of communication technologies in learning contexts. Focusing on expectation confirmation, actual usage, and satisfaction, the findings reveal that students generally perceive communication technologies as meeting their performance expectations, particularly email systems and instant messaging platforms. Email emerges as the most dominant technology, demonstrating the highest levels of confirmation, frequent use, and satisfaction, indicating its continued relevance as a stable and formal academic communication medium. Instant messaging also shows strong acceptance, reflecting students’ preference for rapid and flexible interaction. In contrast, video conferencing systems, social media, and collaborative technologies exhibit lower levels of regular use and satisfaction, accompanied by substantial neutral responses, suggesting partial integration into academic practices. These patterns indicate that while digital transformation has advanced, its implementation remains uneven across different types of communication technologies.
Transformasi digital, Pendidikan tinggi, Teknologi komunikasi, Kepuasan mahasiswa, Konteks pembelajaran.
Copyright (c) 2025 Ahmad Holidin, Haryanto Haryanto, Andri Cahyo Purnomo (Author) https://creativecommons.org/licenses/by/4.0
The Effect of SiO₂–TiO₂/PANI Nanocomposite Concentration on Surface Morphology in Cotton Fabric
This study investigates the effect of SiO2–TiO2/PANI nanocomposite concentration on the surface morphology of cotton fabrics relevant to self-cleaning performance. A controlled laboratory experiment was conducted using four compositional ratios, while TiO2 content was fixed to isolate the structural role of SiO2 and PANI. Nanocomposites were synthesized via a sol–gel route, deposited by dip coating, and characterized using SEM combined with quantitative image analysis. The results demonstrate a systematic morphological evolution from relatively homogeneous, fine particle distributions to coarser and more agglomerated structures as PANI concentration decreased. Particle size distributions ranged predominantly between 40–90 nm, with higher PANI fractions promoting dispersion uniformity and reduced surface roughness. Increasing SiO2 dominance intensified particle growth and agglomeration, indicating altered interfacial interactions within the composite layer. Comparative analysis with prior studies confirms that oxide–polymer balance governs micro–nano architecture on textile substrates. These findings elucidate composition–structure relationships critical for optimizing functional textile coatings
SiO2–TiO2/PANI Nanocomposite, Surface Morphology, Cotton Fabric, Particle Distribution, Self-Cleaning.
Copyright (c) 2025 Intan Puti Maharani, Ratnawulan Ratnawulan (Author) https://creativecommons.org/licenses/by/4.0
Preliminary Study on the Utilization of Palm Oil Boiler Ash Waste as Non-Structural Construction Material
Palm oil boiler ash waste is a by-product of biomass combustion in the palm oil industry, the amount of which continues to increase in line with the growth of the industry. To date, the utilization of boiler ash waste has been limited, with most of it simply being dumped, thus posing potential environmental problems. A study is needed to evaluate the potential use of palm oil boiler ash waste as a non-structural construction material. This study aims to conduct a preliminary study of the characteristics and feasibility of using palm oil boiler ash waste as a non-structural construction material. The research method used is an experimental method in the laboratory, beginning with testing the physical characteristics of boiler ash, followed by basic mechanical testing on non-structural materials that utilize boiler ash as a mixed material. The parameters analyzed include compressive strength and water absorption, which are compared with the applicable quality standards for non-structural materials. The preliminary results show that palm oil boiler ash waste has the potential to be used as a non-structural construction material, especially as a substitute or additive in the manufacture of building materials.
Palm Oil Boiler Ash, Non-Structural Construction Material, Industrial Waste, Building Filler, Mechanical Properties.
Copyright (c) 2025 Rezi Munizar (Author) https://creativecommons.org/licenses/by/4.0
Development of a Web-Based Point of Sale (POS) System for K-Pop Merchandise Sales with Laravel Framework Implementation
The development of a web-based Point of Sale (POS) system for Jayla Shop, an MSME engaged in K-Pop merchandise sales, aims to replace manual transaction recording and stock monitoring processes that can be inefficient and prone to errors. The system was developed using the Laravel framework with a MySQL database and the Waterfall development method, which includes requirement analysis, system design, implementation, testing, and evaluation. The system manages product data, stock data, sales transactions, and transaction details. Key features include automated sales transaction recording, transaction recap reports by specific periods, report export in PDF and Excel formats, an analytics dashboard with sales and product charts, best-selling product information, and stock notifications. In addition, the system supports receipt printing using a Bluetooth thermal printer. Functional testing was conducted using black-box testing and showed that all main features operated as expected, enabling the system to improve transaction efficiency and simplify report generation. Therefore, this POS application not only serves as a transaction support tool but also represents an initial step in the digital transformation of an MSME toward a more modern and integrated information system.
Point of Sale, Laravel, MySQL, Black-box Testing, PDF/Excel Reports
Copyright (c) 2025 Dila Nur Sakinah, Zulva Al’Ilmi, M. Ilham Setya Aji, Abdullah Abdullah, Muhamad Fikri (Author) https://creativecommons.org/licenses/by/4.0
Optimizing the UI/UX of the KRL Access App: A Design Thinking-Based Redesign Study to Improve Usability
This study aims to improve the usability of the KRL Access application through a comprehensive redesign process grounded in the Design Thinking framework. The research employed a qualitative approach, focusing on user needs identified during interviews with active KRL commuters. Key issues regarding inefficient navigation, unclear icons, and limited visibility of essential features prompted the development of a streamlined interface with reorganized information hierarchy. A high-fidelity prototype was created to reflect these improvements, emphasizing clearer visual structure, reduced navigation depth, and faster access to scheduling information. Usability testing demonstrated notable improvements in user experience, particularly in task efficiency and perceived ease of use. Participants reported that the redesigned interface felt more modern, intuitive, and aligned with their expectations for rapid information retrieval. The findings indicate that incorporating user-centric design principles can significantly enhance the functionality and overall usability of public transportation applications. This research contributes practical insights into improving digital service platforms through iterative design and evaluation.
User Experience, Design Thinking, Usability, Mobile Application, Interface Redesign
Copyright (c) 2025 Hanifah Murtafiatul Haq, Candra Milad Ridha Eislam, Muhammad Fikri Hilabi (Author) https://creativecommons.org/licenses/by/4.0
Analysis of the Effect of WiFi Network Quality on the Learning Activities of Female Students at IDN Polytechnic Bogor
The development of information and communication technology in the era of globalization has brought significant changes in various aspects of life, including education. Technology enables the processing and delivery of information quickly, accurately, and efficiently, but it also poses challenges such as misuse and digital crime. In the context of education, the successful use of technology is highly dependent on the availability of infrastructure, particularly the quality of the internet network. WiFi is one of the main tools that supports access to digital learning materials, but poor network quality can interfere with learning effectiveness. This study aims to analyze the effect of WiFi network quality on the learning activities of female students at the Bogor IDN Polytechnic. The study uses a quantitative approach with data collection through technical network measurements using the Speedtest application and a questionnaire that assesses the students' experience in using WiFi for learning. The sample consisted of 25 female students randomly selected from the population of active female students. The results of this study are expected to provide an understanding of the role of WiFi network quality in supporting learning, as well as a basis for the campus to improve network services so that the learning process becomes more effective and comfortable. This study is in line with previous findings that emphasize the importance of internet access quality for student comfort and learning participation.
WiFi, Network Quality, Internet Network, Speedtest, Student
Copyright (c) 2025 Sandra Murcia Sani, Shafiyyah Shafiyyah, Muhamad Fikri, Ari Ramadhan (Author) https://creativecommons.org/licenses/by/4.0
Development of E-LKPD Based on Problem-Based Learning (PBL) Assisted by Live-Worksheets on Biodiversity Material for Grade X High School Students
This study aims to develop an E-LKPD based on Problem Based Learning (PBL) that is suitable for use in teaching biodiversity material to 10th grade high school students. This is a development study based on the ADDIE model, with the development stages limited to implementation through limited-scale trials. The research subjects consisted of 16 10th grade students at a high school in Gorontalo City. The validity of the learning tools was reviewed based on strong theoretical rationale and internal consistency through assessment by media experts, subject matter experts, and practitioners. The validation results showed that the media experts' scores ranged from 86% to 100%, while the subject matter experts' and practitioners' validation scores ranged from 71% to 85%, indicating that the tools were valid and feasible. Practicality was tested through the implementation of learning, student activities, and student responses. The implementation of learning was rated as excellent with a score of 81%–100%, student activities were rated as good with a score of 61%–80%, and student responses were rated as acceptable. The results of the study indicate that PBL-based E-LKPD assisted by live-worksheets is feasible to use and receives positive responses from students.
E-LKPD, Problem Based Learning (PBL), Biodiversity, Live-worksheet, Practicality of Learning Media.
Copyright (c) 2025 Ririn Wijayanti, Lilan Dama, Febriyanti (Author) https://creativecommons.org/licenses/by/4.0
Development of Digital Comic-Based Learning Media on the Concept of the Respiratory System for Grade XI: A Study at Tilamuta 1 Public High School
This study aims to develop a digital comic-based learning media on the human respiratory system concept for eleventh-grade students at SMA Negeri 1 Tilamuta. The research employed a Research and Development approach using the ADDIE model, which includes analysis, design, development, implementation, and evaluation stages. The developed product was tested on a limited scale involving 19 students. Data were collected through expert validation sheets, observation sheets, questionnaires, and learning outcome tests. The results showed that the digital comic learning media achieved a very high level of validity based on media experts, material experts, and biology teachers. The practicality of the media was reflected in the very good implementation of learning activities, increased student engagement, and positive student responses. Furthermore, the effectiveness analysis indicated a significant improvement in students’ learning outcomes, as evidenced by the increase in pretest and posttest scores and an N-Gain value categorized as moderate. These findings indicate that digital comic-based learning media is feasible, practical, and effective for supporting biology learning, particularly in enhancing students’ understanding and learning motivation on the human respiratory system topic.
Digital Comic, Learning Media, Respiratory System, Biology Learning, Research And Development.
Copyright (c) 2025 Angreyna Diko, Margaretha Solang, Ilyas Husain (Author) https://creativecommons.org/licenses/by/4.0
The Effect of SiO₂–TiO₂ and PANI Nanocomposite Coating on Textile Fabrics on Contact Angle Values
This study investigates the effect of SiO₂–TiO₂ nanocomposite coating with polyaniline (PANI) addition on the wettability properties of textile fabrics. The research was conducted through a laboratory-scale experimental approach by applying nanocomposite coatings onto textile substrates using the dip-coating method. Calcination temperatures of 600°C, 700°C, 800°C, and 900°C were employed to evaluate the influence of thermal treatment on surface characteristics. Wettability performance was assessed by measuring water contact angles before and after twenty washing cycles to determine coating durability. The results indicate that all coated fabrics exhibited hydrophilic behavior, characterized by contact angles below 90°, demonstrating enhanced surface affinity toward water. Variations in calcination temperature significantly affected the contact angle values, reflecting changes in surface structure and chemical properties of the nanocomposite layer. After repeated washing, a decrease in hydrophilic performance was observed, suggesting partial degradation or detachment of the coating layer. The presence of PANI, which contains polar functional groups, is considered to contribute to improved surface wettability. Overall, the SiO₂–TiO₂/PANI nanocomposite coating shows potential for functional textile applications requiring controlled hydrophilic properties, although further optimization is necessary to improve long-term stability.
Nanocomposite coating; SiO₂–TiO₂; Polyaniline; Textile fabric; Contact angle
Copyright (c) 2025 Fadila Saputri, Ratnawulan Ratnawulan (Author) https://creativecommons.org/licenses/by/4.0
Antagonism of Trichoderma sp. against Colletotrichum capsici: In Vitro Testing as a Biological Control Strategy for Anthracnose Disease in Chili Peppers
Anthracnose disease is a plant disease caused by the fungus Colletotrichum capsici, the disease is one of the problems in the cultivation of cayenne pepper (Capsicum frutescens). This study aims to test the antagonistic ability of Trichoderma sp. against the fungus Colletotrichum capsici and observe the morphological changes in Colletotrichum capsici colonies exposed to Trichoderma sp in vitro on cayenne pepper plants Capsicum frutescens. The test method was carried out using the dual culture method to determine the percentage of inhibition by studying the interaction between Trichoderma sp. and Colletotrichum capsici colonies on Potato Dextrose Agar culture media. The results showed that Trichoderma sp. fungi can compete for space and resources against Colletotrichum capsici fungi macroscopically by controlling space and resources, and microscopically by producing antibiotics (antimicrobials) that can inhibit the growth of Colletotrichum capsici. The urgency of this research is the need for safe and environmentally friendly disease control efforts. One method that has been widely developed is by utilizing biological agents, such as Trichoderma sp. which is able to inhibit the growth of the pathogen Colletotrichum capsici.
In Vitro, Cayenne Pepper, Colletotrichum Capsici, Trichoderma sp., Capsicum frutescens.
Copyright (c) 2025 Triska Wahyuni Dawit, Ani M. Hasan, Jusna Ahmad, Yuliana Retnowati, Febriyanti Febriyanti (Author) https://creativecommons.org/licenses/by/4.0
Biodiversity and Conservation Status of Waterbirds in the Perintis Lake Area, Bone Bolango Regency, Gorontalo
Perintis lake is a significant aquatic area with considerable potential as a habitat for various bird species, as it is surrounded by forest and agricultural areas that support a diverse avifauna. This research aimed to determine the diversity and conservation status of waterbird species in the perintis lake area. The research employed survery method by determining observations stations and following the water flow river transect along the lake using a boat while recording all birds seen or heard. The results identified several waterbird species, including the Collared Kingfisher (Todiramphus chloris), Purple Heron (Ardea purpurea), Black-crowned Night Heron (Nycticorax nycticorax), Cerulean Kingfisher (Alcedo coerulescens), White-browed Crake (Porzana cinerea), Javan Pond Heron (Butorides striata javanica), Barred Rail (Gallirallus torquatus) and Javan Pond Heron (Ardeola speciosa). The conclusions are as follows : (1) The waterbird diversity index (H’) at perintis lake ranged from 1.365 to 1.912, which falls into the moderate category, indicating that the waterbird community in thus lake is fairly diverse; (2) The evennes index (E) ranged from 0.378 to 0.526, indicating that the distribution of individuals among species is relatively stable
Diversity, Waterbirds, Perintis Lake, Species Equality, Wetland Ecosystems.
Copyright (c) 2025 Wafika Tasya, Mustamin Ibrahim, Zuliyanto Zakaria (Author) https://creativecommons.org/licenses/by/4.0
Application of the First-In First-Out (FIFO) Method of Computerized Inventory Management in Warehousing to Optimize Inventory Turnover
This study aims to analyze the implementation of the First-In First-Out (FIFO) method in a computerized inventory management system for warehousing to optimize inventory turnover. The system was developed using a structured software architecture represented through class diagrams and sequence diagrams to ensure clear data relationships and well-defined process flows. The application integrates hardware and software specifications that support stable data processing, accurate transaction recording, and reliable reporting. The FIFO method ensures that goods entering the warehouse earlier are prioritized for release, reducing the risk of stock accumulation and improving inventory control efficiency. The results indicate that the computerized FIFO-based inventory system enhances operational effectiveness, improves stock accuracy, and supports compliance with accounting standards related to inventory valuation. Furthermore, the system provides timely and reliable inventory information that assists management in decision-making processes. The implementation of a FIFO-based computerized inventory system is proven to be an effective solution for improving warehouse inventory management performance and supporting sustainable operational efficiency.
FIFO, Inventory System, Warehousing, Computerization, Stock Control
Copyright (c) 2025 Hafizh Subagja, Tegar Rihanjaya, Fauzi Nur Afansyah , Abdul Rahman, Yudi Prasetyo (Author) https://creativecommons.org/licenses/by/4.0
Contribution of Human and Warehouse Systems to Inventory Discrepancies
Inventory record inaccuracy remains a critical challenge in warehouse operations due to the complex interaction between human factors and warehouse systems. This study aims to analyze the contribution of human and warehouse system factors to inventory stock discrepancies at PT. LOGISTIC’s warehouse using a descriptive–analytical case study approach. The research adopts the DMAIC framework combined with root cause analysis to identify operational weaknesses affecting inventory accuracy. The results indicate that human-related issues, including data input errors, non-compliance with standard operating procedures, and limited verification practices, constitute the dominant sources of inventory discrepancies. In parallel, warehouse system limitations such as delayed WMS synchronization, scanner reliability issues, and insufficient system validation mechanisms significantly contribute to data inaccuracies. The improvement in inventory accuracy from 97.45 percent in the first count to 98.55 percent in the second count demonstrates that manual verification remains essential, highlighting the reactive nature of existing control mechanisms. These findings suggest that effective inventory control requires an integrated approach that aligns human competence, standardized operational processes, and system optimization to achieve sustainable inventory accuracy.
Inventory record inaccuracy, human error, warehouse management system, inventory control, logistics operations.
Copyright (c) 2025 Ferdian kosagiama, Muhamad Fian, Damar Eulan, Muhamad Ilham, Yudi Prastyo (Author) https://creativecommons.org/licenses/by/4.0
Design and Evaluation of a User-Oriented Web-Based Employee Attendance System Using the Prototyping Method
The use of information technology is increasingly needed to improve administrative processes, including attendance data. A web-based attendance system is one solution that can be used to provide fast, structured, and easily accessible attendance recording. This study aims to analyze user needs and develop a web-based online attendance system using a prototyping method. A qualitative approach was applied through observation, and questionnaires to enable researchers to understand user needs and work patterns implemented in the research environment. The prototyping process was carried out in stages using Unified Modeling Language (UML) modeling as a system design tool. This approach allows users to see the initial form of the system, identify deficiencies, and provide input that is used for continuous feature improvements. The results of the study indicate that the developed system can record attendance in real time, provide automatic recaps, and display attendance data in a more understandable format. In conclusion, this prototyping method is effective in producing an online attendance system that meets needs and improves administrative processes.
Online Attendance, Web System, Prototyping, System Development, Needs Analysis, Unified Modeling Language (UML).
Copyright (c) 2025 Muhammad Rivaldi, Muhammad Arif Budiman, Ardhi Maulana Yusuf, Samso Supriyatna (Author) https://creativecommons.org/licenses/by/4.0
Designing a Website-Based Campus Information System with Automatic Database Backup Integration to the Cloud
This study aims to design and implement a web-based campus information system integrated with an automatic cloud-based database backup mechanism to improve data security and operational efficiency. The research adopts a system development approach through needs analysis, system design using UML, interface prototyping with Figma, and implementation using PHP, MySQL, and cloud storage integration. The backup mechanism is automated using scheduled processes to ensure consistent data protection without manual intervention. System evaluation was conducted through a questionnaire distributed to 50 respondents, selected using the Slovin formula, to measure user perceptions of efficiency, reliability, and system performance. The results indicate a high level of user acceptance, with an overall average score of 4.44, reflecting strong system reliability and effectiveness. The automatic backup integration significantly reduces the risk of data loss, enhances accessibility, and optimizes cloud storage utilization. The findings demonstrate that the developed system provides a robust solution for campus data management and supports sustainable digital transformation in higher education institutions.
Campus Information System, Automatic Database Backup, Cloud Computing, Data Security, Web-Based System,
Copyright (c) 2025 Nisrina Difa Lediana, Najwa Ainur Rokhmah, Elsha Sofira (Penulis) https://creativecommons.org/licenses/by/4.0