Abstract:Abstract: Man-in-the-Middle (MITM) attacks are a threat that can occur on public wireless networks, including campus Wi-Fi environments. This study aims to analyze MITM attacks on the Wi-Fi network at Universitas ‘Aisyiyah…
iyah Yogyakarta using the National Institute of Standards and Technology (NIST) digital forensics methodology. The study applied the four NIST phases: collection, examination, analysis, and reporting. The digital evidence analyzed included packet capture (PCAP) files, as well as digital traces such as browser history, cookies, and cache data obtained from the victim’s device. The analysis process utilized Wireshark, the SQLite Database Browser, and ChromeCacheView to identify suspicious activity and correlate the discovered digital traces. The results of the study show that the MITM attack was successfully reconstructed through the correlation of digital traces, leading to the identification of ARP spoofing and DNS spoofing originating from a device with the IP address 192.168.200.12 and the MAC address a0:47:d7:73:ef:fb. The correlation of digital traces in the victim’s network and system traffic revealed communication redirection and web access manipulation. This study concludes that the NIST method is capable of reconstructing MITM attacks and identifying digital evidence from activity traces on both the network and the system.
Keywords: ARP spoofing; digital forensics; DNS spoofing; MITM; NIST
Abstrak: Serangan Man-in-the-Middle (MITM) merupakan ancaman yang dapat terjadi pada jaringan nirkabel publik, termasuk lingkungan WiFi kampus. Penelitian ini bertujuan menganalisis serangan MITM pada jaringan WiFi Universitas ‘Aisyiyah Yogyakarta menggunakan metode forensik digital National Institute of Standards and Technology (NIST). Penelitian menerapkan empat tahapan NIST, yaitu collection, examination, analysis, dan reporting. Bukti digital yang dianalisis meliputi file packet capture (PCAP), jejak digital berupa history browser, cookies, dan cache yang diperoleh dari perangkat korban. Proses analisis menggunakan Wireshark, SQLite Database Browser, dan ChromeCacheView untuk mengidentifikasi aktivitas mencurigakan serta mengorelasikan jejak digital yang ditemukan. Hasil penelitian menunjukkan bahwa serangan MITM berhasil direkonstruksi melalui korelasi jejak digital yang mengarah pada identifikasi ARP spoofing dan DNS spoofing dari perangkat dengan alamat IP 192.168.200.12 dan MAC address a0:47:d7:73:ef:fb. Korelasi jejak digital pada lalu lintas jaringan dan sistem korban menunjukkan adanya pengalihan komunikasi serta manipulasi akses web. Penelitian ini menyimpulkan bahwa metode NIST mampu merekonstruksi serangan MITM dan mengidentifikasi bukti digital dari jejak aktivitas pada jaringan maupun sistem.
Kata kunci: ARP spoofing; DNS spoofing; forensik digital; MITM; NIST
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: Storage media is an inseparable tool in everyday life. With storage media, users can store important data, both personal and workplace. In addition, in many cases, Indonesian law uses storage media as evidence.…
The Electronic Information and Transactions Law (UU ITE) regulates how the provision of digital evidence can be strong evidence in court. This study examines the forensics of digital evidence on storage media with four test scenarios. Digital forensic processing uses forensic processes based on the National Institute of Standards and Technology (NIST) guidelines. This study produces an analysis in which evidence processed with scenarios 1 and 4 is valid digital evidence to be submitted to court, while evidence 2 and 3 is invalid evidence. The results of this digital evidence can be used for investigations under the ITE law.
Keywords: autopssy; digital forensics; storage media; FTK Imager.
Abstrak: Media Penyimpanan merupakan alat yang tak terpisahkan dari kehidupan sehari-hari. Dengan Media Penyimpanan, pengguna dapat menyimpan data penting, baik pribadi maupun tempat kerja. Selain itu, dalam banyak kasus, hukum Indonesia menggunakan Media Penyimpanan sebagai alat bukti. Undang-Undang Informasi dan Transaksi Elektronik (UU ITE) mengatur bagaimana penyediaan alat bukti digital menjadi alat bukti yang kuat di pengadilan. Penelitian ini mengkaji forensik terhadap alat bukti digital pada Media Penyimpanan dengan empat skenario pengujian. Pemrosesan forensik digital menggunakan proses forensik berdasarkan panduan National Institute of Standards and Technology (NIST). Penelitian ini menghasilkan analisis di mana alat bukti yang diproses dengan skenario 1 dan 4 merupakan alat bukti digital yang sah untuk diajukan ke pengadilan, sedangkan alat bukti 2 dan 3 merupakan alat bukti yang tidak sah. Hasil dari barang bukti digital ini, dapat digunakan untuk penyelidikan didalam undang-undang ITE.
Kata kunci: otopsi; forensik digital; media penyimpanan; FTK Imager
Abstract:Abstract: Stunting is a chronic nutritional condition in toddlers characterized by a Height-for-Age (HFA) measurement below the standard growth threshold, necessitating early detection to prevent long-term consequences.…
This study aims to classify toddler stunting status by comparing three machine learning methods: Random Forest (RF), K-Nearest Neighbor (KNN), and Support Vector Machine (SVM). The dataset comprises 345 toddler records from Puskesmas Indramayu (2025), including weight, height, and nutritional status based on WFA, HFA, and WFH indicators. Preprocessing steps include data cleaning, StandardScaler normalization, One-Hot Encoding for categorical features, and splitting the training and testing data with a ratio of 80:20. The comparison results are that KNN achieved the best performance with an accuracy of 71.01%, a precision of 0.69, a recall of 0.69, and an F1 score of 0.67, while RF and SVM both had an accuracy of 69.57% with F1 scores of 0.67 and 0.68, respectively. Thus, KNN demonstrated superior effectiveness in classifying the stunting status of toddlers compared to RF and SVM on this dataset.
Keywords: KNN; Random Forest; SVM; Stunting; toddlers
Abstract: Stunting adalah kondisi gizi kronis pada balita yang ditandai dengan pengukuran Tinggi Badan menurut Usia (HFA) di bawah ambang batas pertumbuhan standar, sehingga memerlukan deteksi dini untuk mencegah konsekuensi jangka panjang. Penelitian ini bertujuan untuk mengklasfikasikan status stunting pada balita dengan membandingkan tiga metode pembelajaran mesin: Random Forest (RF), K-Nearest Neighbor (KNN), dan Support Vector Machine (SVM). Kumpulan data terdiri dari 345 catatan balita dari puskesmas indramayu (2025), termaksut brat badan, tinggi badan, dan status gizi berdasarkan indicator WFA, HFA, dan WFH. Langkah-langkah prapemrosesan meliputi pembersian data, normalisasi Stand-ardScaler, One-Hot Encoding untuk fitur kategirikal, serta pembagian data pelatihan dan pengujian dengan rasio 80:20. Hasil perbadingan adalah KNN mencapai kinerja terbaik dengan akurasi 71,01%, presisi 0,69, recall 0,69, dan skor F1 sebesar 0,67, RF dan SVM keduanya memiliki akurasi 69,57% dengan skor F1 masing-masing sebesar 0,67 dan 0,68. Dengan demikian, KNN menunjukkan keefektifan yang lebih unggul dalam mengklasifikasikan status stunting balita dibandingkan dengan RF dan SVM pada da-taset ini.
Kata kunci: KNN; random forest; SVM; Stunting; Balita
Abstract:This study aims to apply the Analytic Network Process (ANP) method as a decision support tool in determining the eligibility of education grant recipients in North Sumatra Province. The background of this research arises…
from the large number of grant applicants compared to the available budget, as well as the absence of clear and objective evaluation standards. The ANP method was chosen because it allows the interdependence between assessment criteria such as institutional feasibility, performance and achievement, social and educational impact, and accountability and transparency to be analyzed comprehensively. Data were obtained through interviews, documentation, and observation at the North Sumatra Provincial Education Office. The results of the ANP model show that the criterion with the highest weight is accountability and transparency (0.44), followed by social and educational impact (0.31). Among the three alternatives, community-based education foundations (A2) obtained the highest total weight (0.30), indicating that they are the most eligible recipients of education grants. The implementation of the ANP-based decision support system produces valid and consistent ranking results (CR < 0.1), enabling faster, fairer, and more transparent decision-making. Therefore, the ANP method contributes significantly to improving governance, objectivity, and accountability in the distribution of education grants in North Sumatra Province.
Abstract:Abstract: Mental health is an essential aspect of overall well-being, particularly for university students vulnerable to emotional strain. This study aims to identify clusters of student mental health trends using the K-Means…
Means clustering technique. The research involved 60 students from four academic programs at the Faculty of Science and Technology, selected using stratified and cluster sampling techniques. Data were collected using a modified Mental Health Inventory (MHI). The results revealed distinct commonalities among majors: the Statistics program was predominantly defined by the depressed cluster at 53.3%, while Mathematics followed at 40% within the same cluster. In contrast, Biology students predominantly fell under the neu-tral/stable cluster (66.7%), whilst Information Systems students exhibited an even distribution (33.3% per cluster) without a dominant trend. The clustering quality was evaluated using the Silhouette Coefficient, yielding a range of 0.39 to 0.60. Biology (0.60) and Statistics (0.54) exhibited a reasonable structure, but Information Systems (0.39) and Mathematics (0.34) demonstrated a deficient structure. In conclusion, K-Means effectively discerns mental health patterns, providing a data-driven basis for targeted psychological interventions in educational settings.
Keywords: biology; information systems; k-means; mathematics; mental health; silhouette coefficient; statistics
Abstrak: Kesehatan mental merupakan komponen vital dari kesejahteraan total, terutama bagi maha-siswa yang rentan terhadap stres emosional. Penelitian ini bertujuan untuk mengidentifikasi kelompok tren kesehatan mental mahasiswa melalui penerapan metode pengelompokan K-Means. Studi ini mencakup 60 mahasiswa dari empat program studi di Fakultas Sains dan Teknologi, yang dipilih melalui metode pengambilan sampel bertingkat dan kelompok. Data dikumpulkan dengan menggunakan Inventaris Kesehatan Mental (MHI) yang dimodifikasi. Temuan menunjukkan kesamaan yang jelas di antara jurusan: program studi Statistika terutama ditandai oleh kelompok depresi (53,3%), diikuti oleh Matematika dengan 40% dalam kelompok depresi. Sebaliknya, mahasiswa Biologi terutama termasuk dalam kelompok netral/stabil (66,7%), sedangkan mahasiswa Sistem Informasi memiliki distribusi yang merata (33,3% per kelompok) tanpa pola yang dominan. Kualitas pengelompokan dinilai dengan Koefisien Sil-houette, menghasilkan rentang 0,39 hingga 0,60. Biologi (0,60) dan Statistika (0,54) memiliki struktur sedang, sedangkan Sistem Informasi (0,39) dan Matematika (0,34) menunjukkan struktur yang buruk. Kesimpulannya, K-Means secara akurat mengidentifikasi tren kesehatan mental, menawarkan landasan berbasis data untuk terapi psikologis yang ditargetkan di ling-kungan pendidikan.
Kata kunci: biologi; kesehatan mental; K-Means; matematika; silhouette coefficient; sistem in-formasi; statistika
Abstract:Abstract: The rapid development of information and communication technology has prompted the government to provide digital-based services, including in the management of demographic data. This study aims to apply the Task-Centered…
k-Centered System Design (TCSD) method in designing the Muara Enim Regency Demographic Data Information System. The TCSD method was chosen to ensure that the prototype design process was systematic and focused on user needs and tasks. The research stages included identification, user-centered needs analysis, scenario-based design, and walkthrough evaluation. The designed prototype supports several main tasks, including viewing demographic statistics, searching for specific data, submitting data download requests, and contacting the admin. The evaluation was conducted through online usability testing using the Maze platform with the System Usability Scale (SUS) instrument involving 13 respondents. The evaluation results showed an average SUS score of 78.5, which falls into the “good” category. This confirms that the interface design has met usability standards, is user-friendly, and is capable of supporting user needs in accessing and managing demographic data. Thus, the application of the TCSD method has proven to be effective in producing an interface design that is focused on user tasks and can be the basis for further system development.
Keywords: system usability scale; task centered system design; user interface
Abstract:Abstract: Posyandu cadres play an important role in supporting community health services at the village and sub-district levels. However, the selection process for the best cadres is often carried out subjectively without…
t clear and standardized criteria. This condition can lead to a decline in service quality and reduced cadre motivation. Therefore, a decision support system is needed to provide assessments that are objective, measurable, and accountable. This study aims to optimize the Posyandu cadre selection process in Lubuk Kilangan District through the development of a decision support system based on a hybrid method: Analytical Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). The AHP method is applied to determine the weight of each selection criterion based on its level of importance through pairwise comparisons. Subsequently, TOPSIS is used to rank candidates according to their proximity to the ideal solution. The methodology includes a literature review, primary data collection through interviews and questionnaires with stakeholders (community health centers, cadres, and village officials), as well as the implementation and testing of the AHP–TOPSIS–based system.
Keywords: Posyandu, Cadre, AHP, TOPSIS, Decision Support System
Abstrak: Kader Posyandu memiliki peran penting dalam mendukung layanan kesehatan masyarakat di tingkat desa dan kelurahan. Namun, proses pemilihan kader terbaik masih sering dilakukan secara subjektif tanpa acuan kriteria yang jelas dan terstandarisasi. Kondisi ini dapat mengakibatkan penurunan kualitas pelayanan serta rendahnya motivasi kader. Oleh karena itu, dibutuhkan suatu sistem penunjang keputusan yang mampu memberikan hasil penilaian yang objektif, terukur, dan dapat dipertanggungjawabkan. Penelitian ini bertujuan untuk mengoptimalkan proses pemilihan kader Posyandu di Kecamatan Lubuk Kilangan melalui pengembangan sistem penunjang keputusan berbasis metode hybrid Analytical Hierarchy Process (AHP) dan Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Metode AHP digunakan untuk menetapkan bobot masing-masing kriteria pemilihan kader berdasarkan tingkat kepentingan melalui perbandingan berpasangan. Selanjutnya, metode TOPSIS digunakan untuk melakukan pemeringkatan calon kader berdasarkan kedekatannya terhadap solusi ideal. Metode yang digunakan dalam penelitian ini mencakup studi literatur, pengumpulan data primer melalui wawancara dan kuesioner kepada stakeholder terkait (puskesmas, kader, dan perangkat desa), serta implementasi dan pengujian sistem berbasis AHP-TOPSIS.
Kata kunci: Posyandu, Kader, AHP, TOPSIS, Sistem Pendukung Keputusan
Abstract:Abstract: On-time graduation is an important indicator in measuring the success of higher education and reflects the effectiveness of the academic process in higher education. Royal University, especially the Information…
Systems Study Program, still faces challenges in increasing the percentage of students who graduate on time. This study aims to identify factors that influence students' on-time graduation and build a prediction model using the multiple linear regression method. This method was chosen because it is able to analyze the simultaneous influence of several independent numeric variables on one dependent variable, making it suitable for studying the complex relationship between factors that influence student graduation. The independent variables analyzed in this study include GPA, parental income, and student part-time jobs with student graduation as the dependent variable. The results showed that parental income and part-time jobs had a significant positive effect on on-time graduation, while GPA had a negative effect. The model built had an R² value of 0.6153 and a standard error of 4.0653, indicating that the model was quite strong and accurate. These findings recommend Universitas Royal to strengthen the academic monitoring system and support working students, as well as design policies based on students' socio-economic conditions to increase the on-time graduation rate.
Keywords: multiple linear regression; on-time graduation; students.
Abstrak: Kelulusan tepat waktu merupakan indikator penting dalam mengukur keberhasilan pendidikan tinggi serta mencerminkan efektivitas proses akademik di perguruan tinggi. Universitas Royal, khususnya Program Studi Sistem Informasi, masih menghadapi tantangan dalam meningkatkan persentase mahasiswa yang lulus tepat waktu. Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor yang memengaruhi kelulusan tepat waktu mahasiswa serta membangun model prediksi menggunakan metode regresi linear berganda. Metode ini dipilih karena mampu menganalisis pengaruh simultan beberapa variabel independen numerik terhadap satu variabel dependen, sehingga sesuai untuk mengkaji hubungan kompleks antar faktor yang memengaruhi kelulusan mahasiswa. Variabel independen yang dianalisis dalam penelitian ini meliputi IPK, penghasilan orangtua, dan pekerjaan sambilan mahasiswa dengan kelulusan mahasiswa sebagai variabel dependen. Hasil penelitian menunjukkan bahwa penghasilan orangtua dan pekerjaan sambilan berpengaruh positif signifikan terhadap kelulusan tepat waktu, sedangkan IPK justru memiliki pengaruh negatif. Model yang dibangun memiliki nilai R² sebesar 0,6153 dan standar error 4,0653, menandakan model cukup kuat dan akurat. Temuan ini merekomendasikan Universitas Royal untuk memperkuat sistem monitoring akademik dan mendukung mahasiswa yang bekerja, serta merancang kebijakan berbasis kondisi sosial-ekonomi mahasiswa guna meningkatkan angka kelulusan tepat waktu.
Kata kunci: kelulusan tepat waktu; mahasiswa; regresi linear berganda.
Abstract:Abstract: Computer networks are not just additional facilities in the campus environment, but computer networks help the overall academic activities and social relations of students. This research aims to overcome the problem…
oblem of uneven wifi internet networks and less than optimal SSID management in UHAMKA flats, which has an impact on student access to information and communication. The method used is PPDIOO with simulation using Cisco Packet Tracer and the chosen star topology to provide a stable connection and easy network management. The results of the simulation show that all devices are well connected to each other, as indicated by the successful IP ping test between devices. The research concluded that the PPDIOO method was successful in designing an effective and structured internet network in the students' living environment. So that it can improve access to academic activities and good communication.
Keywords: cisco packet tracer; computer networks; PPDIOO
Abstrak: Jaringan komputer bukan hanya sekedar fasilitas tambahan dalam lingkungan kampus, tetapi jaringan komputer membantu keseluruan aktivitas akademik dan hubungan sosial mahasiswa. Penelitian ini bertujuan mengatasi permasalahan jaringan internet wifi yang belum merata dan pengelolaan SSID yang kurang optimal di rusunawa UHAMKA, sehingga berdampak pada akses informasi dan komunikasi mahasiswa. Metode yang digunakan adalah PPDIOO dengan simulasi menggunakan cisco packet tracer dan topologi star yang dipilih untuk memberikan koneksi stabil dan pengelolaan jaringan yang mudah. Hasil dari simulasi menunjukan seluruh perangkat saling terhubung dengan baik, ditandai dengan berhasilnya pengujian ping IP antar perangkat. Penelitian menyimpulkan metode PPDIOO berhasil dalam merancang jaringan internet yang efektif dan terstruktur di lingkungan tempat tinggal mahasiswa. Sehingga dapat meningkatkan akses aktivitas akademik dan komunikasi secara baik.
Kata kunci: cisco packet tracer; jaringan komputer; PPDIOO