Abstract:Abstract: The development of sustainable tourism in Batam City faces several challenges. Knowledge and information related to tourism remain scattered among various stakeholders, resulting in suboptimal coordination. Knowledge…
wledge sharing and collaboration among stakeholders remain limited, so best practices and experiences have not been fully leveraged. A Knowledge Management System (KMS) based on knowledge sharing is needed to support information exchange and the development of sustainable tourism. The methodology used in this study is the Knowledge Management System Life Cycle (KMSLC) approach combined with Design Thinking. The research steps included an evaluation of the existing infrastructure, the formation of a knowledge management team, knowledge collection, the design of a KMS prototype, and the development of that prototype. The results of the study indicate that a knowledge-sharing-based Knowledge Management System (KMS) prototype was successfully developed to meet the needs of tourists and tourism stakeholders in Batam City. The system built is capable of facilitating the management, storage, and exchange of knowledge among stakeholders in a more integrated manner. The implementation of the KMS also enhances collaboration and supports the decision-making process in the development of tourism products and services. These findings indicate that a KMS can serve as an effective solution in supporting sustainable tourism development in Batam City.
Keywords: tourism, KMLC, Batam City, design thinking, knowledge management.
Abstrak: Pengembangan pariwisata berkelanjutan di Kota Batam menghadapi beberapa tantangan. Pengetahuan dan informasi terkait pariwisata masih tersebar di berbagai pemangku kepentingan sehingga koordinasi belum berjalan secara optimal. Berbagi pengetahuan dan kolaborasi antar pemangku kepentingan masih terbatas, sehingga pengalaman dan praktik terbaik belum dimanfaatkan secara maksimal. Diperlukan Sistem Manajemen Pengetahuan (KMS) berbasis knowledge sharing untuk mendukung pertukaran informasi dan pengembangan pariwisata berkelanjutan. Metodologi yang digunakan dalam penelitian ini adalah pendekatan Siklus Hidup Sistem Manajemen Pengetahuan (KMSLC) yang dikombinasikan dengan Design Thinking. Langkah-langkah penelitian mencakup evaluasi infrastruktur yang sudah ada, pembentukan tim manajemen pengetahuan, pengumpulan pengetahuan, perancangan prototipe KMS, serta pengembangan prototipe KMS tersebut. Hasil penelitian menunjukkan bahwa prototipe Knowledge Management System (KMS) berbasis knowledge sharing berhasil dikembangkan sesuai dengan kebutuhan wisatawan dan pemangku kepentingan pariwisata di Kota Batam. Sistem yang dibangun mampu memfasilitasi pengelolaan, penyimpanan, dan pertukaran pengetahuan antar pemangku kepentingan secara lebih terintegrasi. Implementasi KMS juga meningkatkan kolaborasi dan mendukung proses pengambilan keputusan dalam pengembangan produk dan layanan pariwisata. Temuan ini menunjukkan bahwa KMS dapat menjadi solusi yang efektif dalam mendukung pengembangan pariwisata yang berkelanjutan di Kota Batam.
Kata kunci: pariwisata, KMLC, Kota Batam, desain thinking, manajemen pengetahuan.
Abstract:This study focuses on the development of an Augmented Reality (AR)–based learning application designed to assist students in understanding the mathematical concepts of volume and surface area of three-dimensional geometric…
tric shapes. The development process adopted the Multimedia Development Life Cycle (MDLC) model, which consists of six systematic stages: concept, design, material collecting, assembly, testing, and distribution. The research concentrated on the development and expert validation stages. Validation results from content and media experts indicate that the application meets pedagogical and technical feasibility standards. The content expert confirmed that the materials align with the national mathematics curriculum and are presented in a clear, contextual, and accurate manner, while the media expert highlighted the user-friendly interface, interactive features, and visual appeal of
the application. Theoretically, this AR-based medium bridges the gap between abstract mathematical concepts and concrete visualization by enabling students to interact directly with
virtual 3D objects. Practically, the application enhances learning motivation and engagement by providing dynamic, interactive experiences. Overall, this research contributes to the
advancement of educational technology by offering a systematic model for developing AR-based learning media that support active and meaningful learning in the digital
era.
Abstract:Abstract: Student graduation is an urgent matter that is an indicator of the success of a university in producing its learning output. Several factors influence student graduation such as GPA, attendance, late taking credits,…
dits, and lack of student involvement in academic activities. The urgency of this research, universities need a method that is able to predict student graduation early so that it can provide academic intervention to students who have the potential to experience delays or fail to graduate. However, limited access to real academic data is often an obstacle in the development of predictive models, Therefore, this study aims to implement the XGBoost algorithm to predict student graduation based on several academic variables, namely the Cumulative Grade Point Average (GPA), the number of credits taken, the percentage of attendance, and the average grade of students. Model training using the XGBoost algorithm using a simulation dataset of 500 students who are labeled as graduating into two classes, namely passed and failed. The results of the study showed that the classification performance was very good with an accuracy value of 99.6%, Precision 99.7%, recall 99.4%.
Keywords: xgboost algorithm; data mining; student graduation
Abstrak: Kelulusan mahasiswa merupakan hal urgensi yang menjadi indikator keberhasilan sebuah perguruan tinggi dalam menghasilkan output pembelajarannya. Beberapa Faktor yang mempengaruhi kelulusan mahasiswa seperti IPK, kehadiran, keterlambatan pengambilan SKS, serta kurangnya keterlibatan mahasiswa dalam aktifitas akademik. Yang menjadi urgensi penelitian ini, Perguruan tinggi memerlukan suatu metode yang mampu memprediksi kelulusan mahasiswa secara dini sehingga dapat memberikan intervensi akademik kepada mahasiswa yang berpotensi mengalami keterlambatan atau tidak lulus. Namun, keterbatasan akses terhadap data akademik riil sering menjadi kendala dalam pengembangan model prediksi, Oleh karena itu, penelitian ini bertujuan mengimplementasikan algoritma XGBoost untuk memprediksi kelulusan mahasiswa berdasarkan beberapa variabel akademik, yaitu Indeks Prestasi Kumulatif (IPK), jumlah SKS yang ditempuh, persentase kehadiran, dan nilai rata-rata mahasiswa. Pelatihan model menggunakan algoritma XGBoost dengan menggunakan dataset simulasi 500 mahasiswa yang diberi label kelulusan menjadi dua kelas yaitu lulus dan tidak lulus. Hasil penelitian menunjukan bahwa performance klasifikasi yang sangat baik dengan nilai accurasi sebesar 99,6%, Precision 99,7%, recall 99,4%.
Kata kunci: algoritma xgbosst; kelulusan mahasiswa; penambangan data
Abstract:Abstract: Toko Zuma faces challenges in optimizing customer relationship management and transaction recording due to conventional manual systems, which hinder real-time loyalty monitoring and sales analysis. This research…
h aims to design a digital Electronic Customer Relationship Management (E-CRM) system as an integrative solution for systematic and centralized management. The design method employs Unified Modeling Language (UML) for requirements analysis, user interface design, and Black-box Testing for validation. Results demonstrate a 100% success rate across all primary modules. The platform features Point Reward, automated transaction management, and live chat for direct interaction. Implementation enables personalized promotional strategies based on accurate data to increase customer retention. In conclusion, the Digital E-CRM system effectively automates business processes, serving as a strategic instrument for transparent and measurable customer relationship management.
Keywords: digital e-crm; relationship management; toko zuma; transaction activities.
Abstrak: Toko Zuma menghadapi kendala dalam optimalisasi manajemen hubungan pelanggan dan pencatatan transaksi karena masih menggunakan sistem manual konvensional. Penelitian ini bertujuan merancang sistem Electronic Customer Relationship Management (E-CRM) digital sebagai solusi integratif untuk pengelolaan basis data dan transaksi secara terpusat. Metode perancangan meliputi analisis kebutuhan menggunakan Unified Modeling Language (UML), desain antarmuka, dan validasi fungsional melalui Black-box Testing. Hasil pengujian menunjukkan tingkat keberhasilan 100% pada seluruh modul utama. Platform ini dilengkapi fitur Point Reward, manajemen transaksi otomatis, dan media interaksi live chat. Implementasi sistem ini memungkinkan strategi promosi personal berdasarkan data akurat untuk meningkatkan retensi pelanggan. Simpulannya, sistem E-CRM digital berhasil mengotomatisasi proses bisnis dan menjadi instrumen strategis dalam manajemen hubungan pelanggan yang transparan dan terukur.
Kata kunci: aktivitas transaksi; digital e-crm; pengelolaan relasi; toko zuma.
Abstract:This study aimed to compare the performance of machine learning algorithms and user experience in predicting students’ academic achievement. The research is motivated by the need for prediction systems that are not only…
y highly accurate but also easily interpretable by users. The proposed methodology involved the implementation of two algorithms, namely Decision Tree and Random Forest, using an academic dataset that included grade point average, attendance, and assessment scores. Model performance was evaluated using accuracy, precision, recall, and F1-score, while user experience was assessed through the System Usability Scale (SUS) based on a simple user interface. The findings revealed that Random Forest achieved higher predictive accuracy, whereas Decision Tree provided better interpretability and ease of understanding for users. These results indicated a trade-off between model performance and user experience, suggesting that algorithm selection should consider both aspects in order to develop an effective and user-friendly academic prediction system
Abstract:Abstract: The use of QR Codes in academic settings has increased with the digitization of attendance systems, but it has also introduced potential abuse in the form of quishing attacks (QR phishing). Previous studies have…
e mainly focused on user behavior, while forensic analysis of digital artifacts as evidence is still limited. This study aims to conduct a forensic analysis of browser artifacts resulting from interactions with dangerous QR Codes at Aisyiyah University Yogyakarta using the framework of the National Justice Institute (NIJ). Six investigation parameters are defined: domain identification, endpoint identification, identification of supporting resources, visualization of image artifacts, timestamp correlation, and HTML reconstruction. Data is obtained from the Google Chrome profile directory and analyzed using Autopsy, focusing on Web Cache, Browser History, and Cookies artifacts. The results showed that five parameters were successfully identified with an investigation success rate of 83.3%, while HTML reconstruction could not be fully achieved due to cache limitations. These findings show that Web Cache artifacts provide evidentiary value in the forensic investigation of QR Code-based attacks. Future research should focus on improving full-page reconstruction techniques.
Keywords: browser forensics; digital artifacts; NIJ; quishing; Web Cache
Abstrak: Penggunaan Kode QR di lingkungan akademik telah meningkat seiring dengan digitalisasi sistem absensi, tetapi juga menimbulkan potensi penyalahgunaan dalam bentuk serangan phishing (QR phishing). Studi sebelumnya sebagian besar berfokus pada perilaku pengguna, sementara analisis forensik artefak digital sebagai bukti masih terbatas. Studi ini bertujuan untuk melakukan analisis forensik artefak browser yang dihasilkan dari interaksi dengan Kode QR berbahaya di Universitas 'Aisyiyah Yogyakarta menggunakan kerangka kerja Lembaga Kehakiman Nasional (NIJ). Enam parameter investigasi didefinisikan: identifikasi domain, identifikasi titik akhir, identifikasi sumber daya pendukung, visualisasi artefak gambar, korelasi stempel waktu, dan rekonstruksi HTML. Data diperoleh dari direktori profil Google Chrome dan dianalisis menggunakan Autopsy, dengan fokus pada artefak Cache Web, Riwayat Browser, dan Cookie. Hasil menunjukkan bahwa lima parameter berhasil diidentifikasi dengan tingkat keberhasilan investigasi sebesar 83,3%, sementara rekonstruksi HTML tidak dapat sepenuhnya dicapai karena keterbatasan cache. Temuan ini menunjukkan bahwa artefak Cache Web memberikan nilai bukti dalam investigasi forensik serangan berbasis Kode QR. Penelitian selanjutnya harus fokus pada peningkatan teknik rekonstruksi halaman penuh.
Kata kunci: forensik peramban; artefak digital; NIJ; quishing; web cache
Abstract:Abstract: The development of information technology has begun to enter the world of education, especially universities, one of which is the academic information system because with this system it greatly influences the learning…
earning process and also in the delivery of information. A web-based academic information system is very adequate, but there are several obstacles such as in learning that does not require a laptop device, it will be very disruptive if the implementation of attendance and others is done on a mobile phone but with a web view. So this research aims to design a mobile-based UI/UX academic information system application with the hope that it can be an alternative in accessing the use of academic information systems for lecturers and students can also be accessed anytime and anywhere through mobile phones with a comfortable display. This study also tested the UI/UX design prototype to assess its feasibility. This test uses the system usability scale (SUS) method with a convident interval validation of 95% to determine the lower and upper limits of the SUS value. For the final score of SUS obtained was 78.75, and in the 95% CI test a Lower CI of 66.27 was produced, and for the Upper CI of 91.23 so that it was given a grade of B. It can be concluded that the design developed in this study is worthy of further development.
Keywords: academic information systems; design thinking; system usability scale
Abstrak: Perkembangan teknologi informasi sudah mulai masuk kedalam dunia pendidikan terutama perguruan tinggi, salah satunya sistem informasi akademik karena dengan adanya sistem ini sangat mempengarusi proses pembelajaran dan juga dalam penyampaian informasi. Sistem informasi akademik berbasis web sudah sangat memadai namun ada beberapa kendala seperti dalam pembelajaran yang tidak memerlukan perangkat laptop akan sangat menganggu jika pelaksanaan absensi dan lainya dilakukan pada ponsel tapi dengan tampilan web. Sehingga penelitian ini bertujuan untuk merancang UI/UX aplikasi sistem informasi akademik berbasis mobile dengan harapan dapat menjadi alternatif dalam akses penggunaan sistem informasi akademik bagi dosen dan mahasiswa juga dapat diakses kapan saja dan dimana saja melalui ponsel dengan tampilan yang nyaman. Penelitian ini juga melakukan pengujian terhadap prototype desain UI/UX untuk menilai kelayakannya. Pengujian ini menggunaka metode system usability scale (SUS) dengan validasi convident interval 95% untuk mengetahui batas bawah dan batas atas nilai SUS. Untuk nilai akhir SUS yang didapatkan adalah 78,75, dan dalam pengujian CI 95 % dihasilkan CI Lower 66,27, dan untuk CI Upper 91,23 Sehingga mendapat grade B. Dapat disumpulkan bahwa desain yang dikembangkan dalam penelitian ini layak untuk dikembangkan lebih lanjut.
Kata kunci: sistem informasi akademik; desain thinking; system usability scale
Abstract:Abstract: Accurate forecasts of tea harvest production are important for workforce planning, factory operations, and marketing decisions, yet conventional estimation in plantations often relies on field experience and can…
n be biased and less adaptive to changing conditions. This study aims to develop a Random Forest Regression model to predict tea harvest production at the Bah Butong tea plantation using historical operational and climate-related data. The dataset consists of 60 monthly records (2020–2024) with six predictor variables: rainfall (mm), number of rainy days, pest level, weed level, number of harvested trees and land area. Data were split into 80% training (48 samples) and 20% testing (12 samples). Model hyperparameters were optimized using RandomizedSearchCV with RepeatedKFold cross-validation (5 folds, 3 repeats). The tuned model achieved MSE of 668,980,524.45, RMSE of 25,864.66 kg, MAE of 19,838.69 kg, and MAPE of 7.59% on the test set. The results indicate that the model can provide practical production estimates, with errors averaging about 7–8% of the actual production. Feature importance analysis shows that the number of harvested tea bushes and cultivated area contribute most to predictions. Future work should extend the historical period and incorporate time-based features (seasonality/lag) for improved forecasting.
Keywords: hyperparameter tuning; production prediction; random forest; regression; tea harvest
Abstrak: Perkiraan akurat produksi panen teh sangat penting untuk perencanaan tenaga kerja, operasional pabrik, dan keputusan pemasaran, namun estimasi konvensional di perkebunan seringkali bergantung pada pengalaman lapangan dan dapat bias serta kurang adaptif terhadap perubahan kondisi. Studi ini bertujuan untuk mengembangkan model Regresi Random Forest untuk memprediksi produksi panen teh di perkebunan teh Bah Butong menggunakan data operasional dan data terkait iklim historis. Dataset terdiri dari 60 catatan bulanan (2020–2024) dengan enam variabel prediktor: curah hujan (mm), jumlah hari hujan, tingkat hama, tingkat gulma, jumlah pokok panen, dan luas lahan. Data dibagi menjadi 80% data pelatihan (48 sampel) dan 20% data pengujian (12 sampel). Parameter model dioptimalkan menggunakan RandomizedSearchCV dengan validasi silang RepeatedKFold (5 lipatan, 3 pengulangan). Model yang telah disempurnakan mencapai MSE sebesar 668.980.524,45, RMSE sebesar 25.864,66 kg, MAE sebesar 19.838,69 kg, dan MAPE sebesar 7,59% pada set data uji. Hasil tersebut menunjukkan bahwa model dapat memberikan estimasi produksi yang praktis, dengan kesalahan rata-rata sekitar 7–8% dari produksi aktual. Analisis kepentingan fitur menunjukkan bahwa jumlah semak teh yang dipanen dan luas lahan budidaya paling berkontribusi pada prediksi. Pekerjaan selanjutnya harus memperpanjang periode historis dan menggabungkan fitur berbasis waktu (musiman/lag) untuk peramalan yang lebih baik.
Kata kunci: panen teh; prediksi produksi; random forest; regresi; tuning parameter
Abstract:Abstract: The development of globalization and digitalization requires businesses to not only focus on product quality, but also on the ability to build and maintain long-term relationships with customers. Customer loyalty…
ty has become a strategic asset that influences business sustainability and competitiveness. Handmade Willy, a creative business engaged in the production and sale of handicrafts, faces various problems in customer management, such as difficulties in identifying customer preferences, limitations in ongoing communication, suboptimal customer segmentation, and the absence of a structured system for monitoring customer satisfaction and feedback. These problems have an impact on the ineffectiveness of marketing strategies and the potential decline in customer loyalty. This study aims to optimize customer relationships at Handmade Willy through the application of the Customer Relationship Management (CRM) concept. The research method used is descriptive analysis with a qualitative approach through data collection from observation, interviews, and literature studies. The blackbox testing results show that the system runs smoothly without any obstacles. The implementation of CRM helps Handmade Willy understand customer characteristics and preferences, perform more accurate segmentation, improve communication effectiveness, and systematically monitor customer satisfaction.
Keyword: customer loyalty; customer relationship management; handmade willy.
Abstrak: Perkembangan era globalisasi dan digitalisasi menuntut pelaku usaha untuk tidak hanya berfokus pada kualitas produk, tetapi juga pada kemampuan membangun dan mempertahankan hubungan jangka panjang dengan pelanggan. Loyalitas pelanggan menjadi aset strategis yang berpengaruh terhadap keberlanjutan dan daya saing bisnis. Handmade Willy sebagai usaha kreatif yang bergerak di bidang produksi dan penjualan kerajinan tangan menghadapi berbagai permasalahan dalam pengelolaan pelanggan seperti kesulitan dalam mengidentifikasi preferensi pelanggan, keterbatasan komunikasi berkelanjutan, belum optimalnya segmentasi pelanggan serta belum adanya sistem yang terstruktur untuk memantau kepuasan dan umpan balik pelanggan. Permasalahan tersebut berdampak pada kurang efektifnya strategi pemasaran dan potensi penurunan loyalitas pelanggan. Penelitian ini bertujuan untuk mengoptimalkan hubungan pelanggan pada Handmade Willy melalui penerapan konsep Customer Relationship Management (CRM). Metode penelitian yang digunakan adalah analisis deskriptif dengan pendekatan kualitatif melalui pengumpulan data observasi, wawancara dan studi literatur. Hasil pengujian blackbox menunjukkan sistem yang dibuat berjalan dengan lancar tanpa ada kendala. Dengan penerapan CRM mampu membantu Handmade Willy dalam memahami karakteristik dan preferensi pelanggan, melakukan segmentasi yang lebih tepat, meningkatkan efektivitas komunikasi serta memantau kepuasan pelanggan secara sistematis.
Kata kunci: customer relationship management; kerajinan tangan willy; loyalitas pelanggan.
Abstract:Abstract: The development of information technology encourages retail businesses to manage customer and transaction data more effectively. However, many small-scale retailers still rely on manual record-keeping, resulting…
g in unintegrated data and limited decision-making support. This study aims to design and implement a web-based Electronic Customer Relationship Management (E-CRM) system called MySaffana for Saffana Gallery Boutique to optimize customer and transaction data management. The research method includes requirement analysis, system design using UML, implementation using PHP and MySQL, and system testing using black box testing. The results show that the MySaffana system is able to manage customer data, products, transactions, and sales reports in an integrated and efficient manner. System testing indicates that all main features function properly and meet user requirements. Therefore, the developed E-CRM system provides an effective and practical solution for strengthening data-driven decision-making in small-scale retail businesses.
Keywords: boutique; customer data management; customer profiling; E-CRM.
Abstrak: Perkembangan teknologi informasi mendorong usaha ritel untuk mengelola data pelanggan dan transaksi secara lebih efektif. Namun, banyak usaha ritel skala kecil masih melakukan pencatatan secara manual sehingga data tidak terintegrasi dan kurang optimal dalam mendukung keputusan. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem Electronic Customer Relationship Management (E-CRM) berbasis web bernama MySaffana pada Butik Saffana Gallery yang dapat mengoptimalkan pengelolaan data pelanggan dan transaksi. Metode penelitian meliputi analisis kebutuhan, perancangan sistem menggunakan UML, implementasi dengan PHP dan MySQL, serta pengujian menggunakan metode black box testing. Hasil penelitian menunjukkan bahwa sistem MySaffana mampu mengelola data pelanggan, produk, transaksi, dan laporan penjualan secara terintegrasi dan efisien. Pengujian sistem membuktikan seluruh fitur berjalan sesuai fungsi dan kebutuhan pengguna. Dengan demikian, sistem E-CRM berbasis web ini dapat menjadi solusi yang efektif dalam mendukung pengelolaan data dan pengambilan keputusan berbasis data bagi usaha ritel skala kecil.
Kata kunci: butik; E-CRM; profil pelanggan; pengelolaan data pelanggan.