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Expert System for Detection of Diseases in Layers Using Forward Chaining and Certainty Factor Methods Kevin Febrianto; Erika Devi Udayanti; Bonifacius Vicky Indriyono; Wildan Mahmud; Iqlima Zahari
Jurnal Masyarakat Informatika Vol 14, No 2 (2023): November 2023
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmasif.14.2.52266

Abstract

Inaccuracies in the process of diagnosing a type of disease result in errors in handling so that it will pose a risk of death. Accurate diagnostic process results require a high level of confidence so that the results are truly convincing. Current technological developments are making more and more mindsets for the development of information technology in the field of computerization born. One of them is an expert system. This expert system is often used to analyze disease in laying hens. The deficiency in previous research is that there is no degree of confidence so what happens is that the diagnosis often only uses the value of the expert. The role of the system user is only to select the available symptoms without giving the weighted value of the selected symptoms. This study aims to build an expert system capable of detecting symptoms in laying hens by assigning a degree of confidence to each symptom. The system is built with a combination of forward chaining techniques with a certainty factor, the weight value is based on a combination of the weight of symptoms from users and experts to anticipate conditions that are not ideal. Several stages in the research include data collection, knowledge base modeling, implementation into applications and testing. The conclusion that can be drawn from the trial results is that the system can show a maximum validity value of up to 100% when compared to manual calculations.
Web3-Based Cyber Incident Reporting System With Smart Contracts and Non-Fungible Token Rewards Permana, Danang Juniar; Mahmud, Wildan; Saraswati, Galuh Wilujeng
Sinkron : jurnal dan penelitian teknik informatika Vol. 10 No. 2 (2026): Article Research April, 2026
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v10i2.15898

Abstract

The rising frequency of cyber threats increases the need for incident reporting that is transparent, efficient, and privacy-preserving. This study designs and implements a hybrid Web2-Web3 cyber incident reporting prototype that anchors report references on a blockchain while storing full incident details off-chain, and explores non-fungible token (NFT) recognition incentives for reporters. Using an SDLC-based iterative prototyping approach, we built a React single-page application integrated with a Laravel REST API and MySQL for off-chain storage, and deployed Solidity smart contract modules on the Arbitrum Sepolia testnet to record report identifiers and UUID pointers (dataPointer) and to mint NFTs after administrative validation. We conducted black-box functional testing across core scenarios (submission, storage, pointer anchoring, validation, and minting) and a user acceptance study with 25 participants (15 cybersecurity students and 10 IT practitioners) using a 5-point Likert questionnaire. All tested scenarios executed as expected in the test environment, and on-chain events were traceable to corresponding backend records via transaction receipts and logged identifiers. The acceptance evaluation yielded an overall mean score of 3.4/5 (about 68%), indicating moderate acceptance and supporting the work as a prototype feasibility study rather than organizational-level generalization. The prototype demonstrates a practical workflow for hybrid incident reporting with transaction-level traceability and recognition incentives; future work should strengthen cryptographic binding (e.g., content hashing) and validate the approach with CSIRT stakeholders in operational settings.
MODEL SISTEM PENDUKUNG KEPUTUSAN HYBRID MCDM (AHP-SAW) UNTUK PENENTUAN PRIORITAS FORMASI JABATAN CALON APARATUR SIPIL NEGARA DAERAH Cahyani, Almaun Tri; Saraswati, Galuh Wilujeng; Mahmud, Wildan
Jurnal INSTEK (Informatika Sains dan Teknologi) Vol 11 No 1 (2026): APRIL
Publisher : Department of Informatics Engineering, Faculty of Science and Technology, Universitas Islam Negeri Alauddin, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/instek.v11i1.66147

Abstract

Penentuan formasi jabatan Calon Aparatur Sipil Negara (CASN) di pemerintah daerah sering bersifat subjektif dan belum terintegrasi dengan data analisis beban kerja dan analisis jabatan. Kondisi ini menyebabkan ketimpangan distribusi pegawai serta ketidakefisienan dalam perencanaan sumber daya manusia. Penelitian ini bertujuan merancang Sistem Pendukung Keputusan (SPK) untuk menentukan prioritas formasi jabatan secara objektif dan berbasis data. Metode yang digunakan adalah pendekatan Multi-Criteria Decision Making (MCDM) dengan mengintegrasikan Analytic Hierarchy Process (AHP) untuk pembobotan tujuh kriteria dan Simple Additive Weighting (SAW) untuk perangkingan 168 alternatif jabatan dari 62 unit organisasi (OPD). Data penelitian bersumber dari analisis jabatan, analisis beban kerja, serta data kepegawaian aktual. Hasil penelitian menunjukkan bahwa model menghasilkan bobot kriteria yang konsisten dengan nilai Consistency Ratio (CR) sebesar 0,0453. Jabatan Pemadam Kebakaran Pemula pada OPD-62 memperoleh nilai preferensi tertinggi (Vi = 0,5973) sebagai prioritas utama. Implementasi sistem dalam bentuk dashboard analitik dapat mendukung pengambilan keputusan yang lebih objektif, transparan, dan berbasis data.
APLIKASI PEMBELAJARAN LOGIKA PEMROGRAMAN BERBASIS ANDROID DENGAN GAME-BASED LEARNING: INTEGRASI ADDIE DAN UCD Ayza, Falya Charismatul; Erba Lutfina; Wildan Mahmud
Jurnal INSTEK (Informatika Sains dan Teknologi) Vol 11 No 1 (2026): APRIL
Publisher : Department of Informatics Engineering, Faculty of Science and Technology, Universitas Islam Negeri Alauddin, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/instek.v11i1.66739

Abstract

Pembelajaran logika pemrograman kerap mengalami hambatan akibat sifat materi yang abstrak dan rendahnya interaktivitas pembelajaran, sehingga berdampak pada pemahaman pengguna. Penelitian ini bertujuan mengembangkan aplikasi pembelajaran berbasis Android dengan pendekatan game-based learning untuk meningkatkan pemahaman logika pemrograman pada pengguna pemula. Metode yang digunakan adalah integrasi model ADDIE dan User-Centered Design guna memastikan proses pengembangan yang sistematis dan berorientasi pengguna. Analisis data dilakukan secara deskriptif kuantitatif. Aplikasi yang dikembangkan memuat materi terstruktur, latihan interaktif, sistem level dan skor, serta umpan balik adaptif. Berdasarkan pengujian fungsional dengan pendekatan black-box testing, seluruh fitur sistem terbukti berjalan sesuai dengan spesifikasi yang dirancang. Evaluasi usability pada 15 responden menggunakan System Usability Scale memperoleh skor rata-rata 82,4 yang termasuk kategori sangat baik. Selain itu, hasil pre-test dan post-test menunjukkan peningkatan nilai rata-rata dari 65 menjadi 82. Temuan ini menunjukkan bahwa aplikasi yang dikembangkan efektif dalam meningkatkan pemahaman logika pemrograman serta memberikan pengalaman belajar yang lebih interaktif dan adaptif dalam proses pembelajaran.
PENDEKATAN FENOMENOLOGI DALAM PERANCANGAN APLIKASI COPING STRES AKADEMIK PADA MAHASISWA BERBASIS DSRM DAN EVALUASI UEQ Novarita Milianti Putri; Erba Lutfina; Wildan Mahmud
Jurnal INSTEK (Informatika Sains dan Teknologi) Vol 11 No 1 (2026): APRIL
Publisher : Department of Informatics Engineering, Faculty of Science and Technology, Universitas Islam Negeri Alauddin, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/instek.v11i1.66827

Abstract

Stres akademik merupakan masalah yang sering dialami mahasiswa, tidak hanya terkait tugas dan ujian, tetapi juga kesulitan adaptasi, rasa terasing, dan strategi coping yang belum stabil. Penelitian ini bertujuan mengeksplorasi pengalaman mahasiswa dalam menghadapi stres akademik dan merancang prototype aplikasi coping digital untuk stres akademik berbasis fenomenologi dan Design Science Research Methodology (DSRM). Data dikumpulkan melalui wawancara semi-terstruktur dengan 12 mahasiswa dan dianalisis secara tematik untuk mengidentifikasi pengalaman serta kebutuhan pengguna. Berdasarkan temuan tersebut, dikembangkan prototype aplikasi mobile dengan fitur check-in kondisi emosional, identifikasi pemicu stres, rekomendasi coping singkat, refleksi harian, dan dukungan adaptasi diri. Evaluasi awal menggunakan User Experience Questionnaire (UEQ) menunjukkan hasil positif pada seluruh aspek, dengan nilai rata-rata Attractiveness 1,88, Stimulation 1,85, Perspicuity 1,35, Efficiency 1,30, Novelty 1,10, dan Dependability 1,20, menunjukkan aspek daya tarik dan motivasi pengguna cukup tinggi, sementara aspek kebaruan dan ketergantungan masih dapat ditingkatkan. Hasil ini menunjukkan bahwa prototype aplikasi memberikan pengalaman pengguna yang positif, sekaligus mengidentifikasi area perbaikan untuk meningkatkan interaksi dan inovasi.
SOROBAN DIGITAL BERBASIS COMPUTER VISION DETEKSI GESTURE JARI SEBAGAI MEDIA PEMBELAJARAN INTERAKTIF Zudha Pratama; Wildan Mahmud; Moch. Sjamsul Hidajat; Dibyo Adi Wibowo; Didik Hermanto
Information System Journal Vol. 9 No. 01 (2026): Information System Journal (INFOS)
Publisher : Universitas Amikom Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24076/infosjournal.2026v9i01.2672

Abstract

Pembelajaran matematika di sekolah dasar membutuhkan media konkret untuk membantu siswa memahami konsep bilangan dan operasi aritmetika dasar. Soroban (abakus Jepang) telah lama menjadi alat manipulatif yang efektif, namun penggunaannya menurun seiring pergeseran menuju pembelajaran digital. Penelitian ini bertujuan mengembangkan simulasi soroban digital yang dikendalikan dengan gesture jari secara real-time melalui computer vision sebagai media pembelajaran interaktif bagi siswa sekolah dasar. Sistem dibangun menggunakan Python, OpenCV, dan MediaPipe Hands untuk mendeteksi posisi jari serta gesture pinch sebagai mekanisme utama dalam menggerakkan bead soroban digital. Metode penelitian meliputi perancangan sistem, implementasi perangkat lunak, dan evaluasi pengguna untuk mengukur kemudahan penggunaan, interaktivitas, serta pemahaman konsep bilangan. Hasil yang diharapkan adalah media pembelajaran yang intuitif, menarik, dan mudah diakses tanpa perangkat tambahan, dengan kebaruan berupa integrasi soroban digital dan kendali gesture alami berbasis computer vision.
Analysis of MikroTik Firewall Effectiveness in Mitigating DDoS Attacks using the Network Development Life Cycle (NDLC) Approach M. Irsyadul 'ibad; Wildan Mahmud; Galuh Wilujeng
SISTEMASI Vol 15, No 5 (2026): Sistemasi: Jurnal Sistem Informasi
Publisher : Universitas Islam Indragiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v15i5.6347

Abstract

This study is motivated by the increasing network security threats accompanying the growth of digital-based services in government institutions. One of the most common threats is the Distributed Denial of Service (DDoS) attack, which can cause network performance degradation and service disruption. This research aims to analyze the effectiveness of implementing a MikroTik firewall in mitigating DDoS attacks on the network of the Diskominfo Kota Kediri using the Network Development Life Cycle (NDLC) method. The research stages consisted of analysis, design, simulation, implementation, monitoring, and management. The testing process was conducted by simulating SYN Flood attacks using the Hping3 application. The evaluated parameters included throughput, delay, packet loss, and CPU utilization on the router. The experimental results showed that under DDoS attack conditions without firewall protection, throughput increased to approximately 40 Mbps, delay reached 5–15 ms, packet loss ranged from approximately 20–30%, and CPU utilization increased to 99–100%. After the firewall was implemented, network performance improved significantly, with throughput decreasing to approximately 2 Mbps, delay stabilizing below 1 ms, packet loss reduced to 0%, and CPU utilization decreasing to approximately 3%. These findings indicate that the MikroTik firewall is effective in filtering abnormal traffic and reducing system load, thereby improving network stability and maintaining service quality based on Quality of Service (QoS) parameters.
INTEGRASI METODE RAPID APPLICATION DEVELOPMENT (RAD) DAN USER ACCEPTANCE TESTING (UAT) DALAM PENGEMBANGAN SISTEM INFORMASI PEMESANAN DIGITAL PRINTING: INTEGRATION OF RAPID APPLICATION DEVELOPMENT (RAD) AND USER ACCEPTANCE TESTING (UAT) METHODS IN THE DEVELOPMENT OF A DIGITAL PRINTING ORDERING INFORMATION SYSTEM Kenza Amelia Putri Anwarri; Galuh Wilujeng Saraswati; Wildan Mahmud; Erba Lutfina; Resha Meiranadi Caturkusuma
Rabit : Jurnal Teknologi dan Sistem Informasi Univrab Vol 11 No 1 (2026): Januari
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/rabit.v11i1.6960

Abstract

Advances in information technology have encouraged various business sectors to switch from manual systems to digital systems in order to improve efficiency and service quality. CV. Penanggungan 44, as a digital printing service provider, previously used a manual ordering system, resulting in inefficient transactions and susceptibility to recording errors. This study aims to design and develop a website-based Digital Printing Ordering Information System that can simplify the ordering process and assist in integrated data management. The system was developed using the Rapid Application Development (RAD) method combined with a User-Centered Design (UCD) approach and User Acceptance Testing (UAT) applied iteratively. UAT is not only used as a final testing stage, but also utilized since the interface design stage as a formative evaluation, so that user feedback can be directly integrated into the system design and construction improvement process. This approach ensures that rapid development remains in line with user needs and experiences. Black-box Testing shows that all system features function properly with a 100% success rate. Meanwhile, the User Acceptance Testing (UAT) results obtained an average score of 86.8% in the excellent category, indicating that the system is easy to use and well-received by users. Thus, the developed system is deemed suitable for use in improving operational efficiency and service quality at CV. Penanggungan 44
Implementasi Metode Simple Additive Weighting (SAW) Dalam Mendukung Keputusan Calon Penerima Beasiswa Pada MTS Nurul Ula Ervina Febrianti; Erba Lutfina; Galuh Wilujeng Saraswati; Wildan Mahmud
Science Technology and Management Journal Vol. 5 No. 2 (2025): Agustus 2025
Publisher : Fakultas Sains dan Teknologi, Universitas Nasional Karangturi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53416/stmj.v5i2.350

Abstract

Scholarships are a form of educational aid to support students’ academic pursuits, especially for those with outstanding performance or financial constraints. However, the scholarship recipient selection process at MTS Nurul 'Ula is still conducted manually, which often results in inefficiency and a lack of objective assessment standards. This manual process leads to subjective evaluations, takes a considerable amount of time, and may result in inaccurate scholarship decisions. Therefore, this study aims to develop a Decision Support System (DSS) using the Simple Additive Weighting (SAW) method to improve efficiency, accuracy, and transparency in the scholarship selection process. The SAW method was chosen because it allows for clear weighting of each selection criterion, such as academic grades, attitude scores, parental income, number of dependents, and extracurricular achievements. With this system, the selection process can be carried out more objectively based on structured mathematical weighting and calculations. The system is developed using the Delphi and MySQL database, following the Waterfall development model. The results of the study show that the implementation of the SAW-based DSS can accelerate the selection process, reduce subjectivity, and ensure that scholarships are awarded to students who meet the predetermined criteria. Thus, the system is expected to be a fairer, more accurate, and more efficient solution for supporting scholarship selection decisions at MTS Nurul 'Ula. Based on the results of the SAW calculations, an accuracy rate of 85% was achieved, indicating that the system provides accurate and reliable results in determining scholarship recipients.
IMPLEMENTASI METODE ANALYTICAL HIERARCHY PROCESS (AHP) DALAM MENDUKUNG KEPUTUSAN PEMILIHAN REKOMENDASI HANDPHONE Evita Citra Yustiqomah; Erba Lutfina; Galuh Wilujeng Saraswati; Wildan Mahmud
Science Technology and Management Journal Vol. 5 No. 2 (2025): Agustus 2025
Publisher : Fakultas Sains dan Teknologi, Universitas Nasional Karangturi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53416/stmj.v5i2.358

Abstract

In the rapidly evolving digital era, the demand for mobile phones is increasing, with a wide range of specifications and price points available. PT. Topsell Raharja Indonesia, as one of the leading mobile phone retailers, faces challenges in providing fast and accurate recommendations that align with the needs of prospective buyers. The manual phone selection process currently used by sales staff often leads to errors in decision-making, resulting in service delays and customer dissatisfaction. Therefore, this study aims to develop a Decision Support System (DSS) based on the Analytical Hierarchy Process (AHP) to assist the store in recommending optimal mobile phones based on specific criteria. The AHP method is utilized to analyze and compare several key criteria—including price, RAM capacity, camera quality, battery life, performance, and design—in order to determine priority rankings for phone selection. The results demonstrate that the proposed system improves the efficiency of recommendations, reduces selection errors, and accelerates the customer service process. The implementation of the AHP method enables objective and accurate suggestions, achieving up to 98% accuracy. By systematically calculating the weight of each criterion, the system generates optimal alternatives tailored to the preferences and needs of prospective buyers