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: 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: The rapid development of information technology has increased the demand for high-quality software, necessitating a structured development process. ISO/IEC/IEEE 12207:2017 serves as an international standard encompassing…
compassing organizational, technical, and project support processes, differing from ISO 9001, which focuses more generally on quality management. This study employs a Multi-Criteria Decision Making (MCDM) approach by integrating the Analytic Hierarchy Process (AHP) and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). AHP determines the weight of ISO 12207:2017 criteria through pairwise comparisons, while TOPSIS ranks software development activities based on these weights. To validate the results, Analysis of Variance (ANOVA) is applied. The findings indicate that the Software Requirements Definition Process has the highest priority weight (0.169), followed by Implementation (0.101) and Operation (0.095). Software Configuration Management is identified as the most critical activity with the highest TOPSIS score (0.221). ANOVA confirms the reliability of expert evaluations, showing no significant differences. This study provides a structured decision-making framework based on ISO 12207:2017, helping optimize software project management while ensuring alignment with international standards and industry best practices.
Keywords: AHP; TOPSIS; ANOVA; ISO 12207:2017
Abstrak: Perkembangan teknologi informasi meningkatkan permintaan perangkat lunak berkualitas tinggi, sehingga diperlukan proses terstruktur dalam pengembangannya. ISO/IEC/IEEE 12207:2017 menjadi standar internasional yang mencakup proses organisasi, teknis, dan pendukung proyek, berbeda dengan ISO 9001 yang lebih umum pada manajemen kualitas. Penelitian ini menggunakan Multi-Criteria Decision Making (MCDM) dengan mengintegrasikan Analytic Hierarchy Process (AHP) dan Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). AHP menentukan bobot kriteria ISO 12207:2017 melalui perbandingan berpasangan, sementara TOPSIS memeringkat aktivitas pengembangan berdasarkan bobot tersebut. Untuk validasi, Analysis of Variance (ANOVA) diterapkan. Hasil penelitian menunjukkan bahwa Proses Definisi Kebutuhan Perangkat Lunak memiliki bobot tertinggi (0,169), diikuti Implementasi (0,101), dan Operasi (0,095). Manajemen Konfigurasi Perangkat Lunak menjadi aktivitas paling kritis dengan skor TOPSIS tertinggi (0,221). ANOVA mengonfirmasi keandalan penilaian para ahli tanpa perbedaan signifikan. Penelitian ini memberikan kerangka kerja pengambilan keputusan berbasis ISO 12207:2017, membantu optimalisasi manajemen proyek perangkat lunak, serta memastikan keselarasan dengan standar internasional dan praktek terbaik industri.
Kata kunci: AHP; TOPSIS; ANOVA; ISO 12207:2017
Abstract:Abstract: Performance assessment is the process of measuring an organization in achieving predetermined goals. Performance assessment can also be interpreted as periodically determining the operational effectiveness of an…
n organization and its personnel, based on the vision, mission and organizational standards that have been previously established. Performance appraisals are carried out between superiors and subordinates, looking at the employee's work results in the last year. Employee performance assessment at the North Padang Lawas Regency PUPR Service still uses a manual system so that the files are not arranged quickly and employee performance assessment still uses calculations with Microsoft Excel. With this problem, the fuzzy logic method is used. The fuzzy method is used to obtain the best employee performance assessment, with 3 criteria to produce the greatest value selected. This research aims to design an employee performance assessment application using the fuzzy method, to obtain recommendations for promotion. The test results of 8 people had sufficient value and 2 people had low value. For low-ranking employees, they will be given sanctions and reprimands by their superiors, while for employees with sufficient value, their performance must be improved to be even better.
Keywords: fuzzy logic; performance; assessment; employee;
Abstrak: Penilaian kinerja merupakan proses pengukuran organisasi dalam mencapai tujuan yang telah ditetapkan. Penilaian kinerja dapat juga diartikan sebagai penentuan secara periodik efektivitas operasional suatu organisasi, dan personilnya, berdasarkan visi, misi dan standar organisasi yang telah ditetapkan sebelumnya. Penilaian kinerja dilakukan antara atasan dengan bawahan, melihat hasil kerja pegawai dalam setahun terakhir. Penilaian kinerja pegawai pada Dinas PUPR Kabupaten Padang Lawas Utara masih menggunakan sistem manual sehingga berkas-berkas file tidak tersusun secara rapid dan penilaian kinerja pegawai masih menggunakanperhitungan dengan microsoft excel.Dengan permasalahah tersebut menggunakan metode fuzzy logic. Metode fuzzy digunakan dalam mendapatkan penilaian kinerja pegawai terbaik, dengan 3 kriteria untuk menghasilkan nilai terbesar yang terpilih. Penelitian ini bertujuan untuk merancang aplikasi penilaian kinerja karyawan dengan metode fuzzy, untuk mendapatkan rekomendasi kenaikan jabatan. Hasil tes dari 8 orang memiliki nilai cukup dan 2 orang memiliki nilai rendah. Bagi pegawai yang memiliki nilai rendah akan diberikan sanksi dan teguran oleh atasannya, sedangkan bagi pegawai yang memiliki nilai cukup, kinerjanya harus ditingkatkan agar lebih baik lagi.
Kata kunci: fuzzy logic; penilaian; kinerja; pegawai