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All Journal Jurnal Sains dan Informatika JOURNAL OF APPLIED INFORMATICS AND COMPUTING International Journal of New Media Technology Angkasa: Jurnal Ilmiah Bidang Teknologi Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming JISKa (Jurnal Informatika Sunan Kalijaga) Jurnal Teknik Elektro Uniba (JTE Uniba) Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Kajian Ilmiah IJ3PE Jurnal Pengabdian Masyarakat - Teknologi Digital Indonesia Teknomatika: Jurnal Informatika dan Komputer
Lahitani, Alfirna Rizqi
Universitas Jenderal Achmad Yani Yogyakarta
Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Other

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Analisis Kerentanan Pada Domain Repository Unjaya Menggunakan Kerangka Information System Security Assessment Framework (ISAFF) Lahitani, Alfirna Rizqi; Ahmad Nurhidayat; Nofa Shintia; Muhammad Fahrur R
Jurnal Teknomatika Vol 17 No 1 (2024): TEKNOMATIKA
Publisher : Fakultas Teknik dan Teknologi Informasi, Universitas Jenderal Achmad Yani Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30989/teknomatika.v17i1.1311

Abstract

Vulnerability analysis on the Unjaya Repository website uses the ISSAF method for identifying and grouping identified vulnerabilities.. The purpose is to provide an in-depth understanding of the vulnerabilities that exist on the Repository site as a basis for the corrective steps needed to reduce security risks. The methods are information gathering, network mapping, vulnerability exposure, vulnerability grouping, IP addresses, active ports. Scanning using Nikto Scanner and Helium Security, 24 vulnerabilities detected in four levels, namely high, medium, low and informational. The results found at a high level of vulnerability in the form of disclosure of PII, at a medium level such as the absence of an Anti-CSRF Token, at a low level such as Application Error Disclosure, and at an information level such as Authentication Request Identified. This proves that there is a significant potential risk to the security of the Unjaya Repository site.
Pelatihan Preventive Maintenance Mesin 3D Printer di SMK Muhammadiyah Berbah Finansia, Cici; Dewi, Grita Supriyanto; Lahitani, Alfirna Rizqi; Rosid, Ibnu Abdul
Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 7, No 2 (2024): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/japhb.v7i2.6773

Abstract

Sebagai instansi yang membekali siswa dengan keterampilan khusus, maka siswa Sekolah Menengah Kejuruan (SMK) perlu mengikuti perkembangan teknologi sesuai dengan bidang yang ditekuninya. Salat satunya adalah teknologi mesin 3D printer yang dimiliki SMK Muhammadiyah Berbah untuk mendukung pengembangan keterampilan siswa jurusan teknik otomotif. Jurusan tersebut tidak hanya dibekali dengan kemampuan menganalisis, mendesain, dan kegiatan manufaktur, melainkan juga melakukan pemeliharaan sebuah sistem mekanik. Pemeliharaan atau perawatan (maintanance) berkaitan dengan usaha mempertahankan peralatan dalam kondisi layak bekerja. Namun SMK Muhammadiyah Berbah belum mengetahui bagaimana melakukan perawatan pada mesin 3D printer. Adanya mesin 3D printing yang mampu menunjang proses pembelajaran harus diimbangi dengan melakukan preventive maintanance untuk menjaga kualitas hasil cetak dan menghindari pengeluaran biaya akibat kerusakan. Sehingga dilakukan pengabdian kepada masyarakat melalui sosialisasi dan pelatihan mengenai preventive maintenance mesin 3D Printer kepada guru dan mahasiswa jurusan teknik otomotif di SMK Muhammadiyah Berbah. Metode pelaksanaan kegiatan yaitu pelatihan kegiatan preventive maintanance mesin 3D printer bagi guru dan siswa SMK Muhammadiyah Berbah. Kegiatan tersebut dihadiri 31 peserta yang terdiri dari guru dan siswa dari jurusan teknik otomotif. Peserta diberikan kesempatan untuk praktik perawatan secara langsung pada mesin 3D printer sehingga dapat menambah hardskill guru dan siswa. Secara ekonomis, preventive maintanance dilakukan untuk menghindari pengeluaran biaya akibat kerusakan mesin. Berdasarkan hasil kuesioner pemahaman pelatihan preventive maintanance diperoleh peningkatan pemahaman peserta sebesar 72%.  
Analisis Kerentanan Pada Domain Repository Unjaya Menggunakan Kerangka Information System Security Assessment Framework (ISAFF) Lahitani, Alfirna Rizqi; Ahmad Nurhidayat; Nofa Shintia; Muhammad Fahrur R
Jurnal Teknomatika Vol 17 No 1 (2024): TEKNOMATIKA
Publisher : Fakultas Teknik dan Teknologi Informasi, Universitas Jenderal Achmad Yani Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30989/teknomatika.v17i1.1311

Abstract

Vulnerability analysis on the Unjaya Repository website uses the ISSAF method for identifying and grouping identified vulnerabilities.. The purpose is to provide an in-depth understanding of the vulnerabilities that exist on the Repository site as a basis for the corrective steps needed to reduce security risks. The methods are information gathering, network mapping, vulnerability exposure, vulnerability grouping, IP addresses, active ports. Scanning using Nikto Scanner and Helium Security, 24 vulnerabilities detected in four levels, namely high, medium, low and informational. The results found at a high level of vulnerability in the form of disclosure of PII, at a medium level such as the absence of an Anti-CSRF Token, at a low level such as Application Error Disclosure, and at an information level such as Authentication Request Identified. This proves that there is a significant potential risk to the security of the Unjaya Repository site.
PELATIHAN KETERAMPILAN WEB DESIGN DALAM UPAYA MENGHADAPI PERKEMBANGAN TEKNOLOGI BAGI SISWA SMK MUHAMMADIYAH PRAMBANAN Lahitani, Alfirna Rizqi; Setiawan, Chanief Budi; Finansia, Cici
Jurnal Pengabdian Masyarakat - Teknologi Digital Indonesia. Vol 4, No 1 (2025): Maret 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat - Universitas Teknologi Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26798/jpm.v4i1.1510

Abstract

SMK Muhammadiyah Prambanan telah beradaptasi dengan perkembangan teknologi informasi dan komunikasi. Akses informasi kegiatan belajar-mengajar, penerimaan mahasiswa, informasi profil sekolah dan bursa kerja sudah disajikan dengan memanfaatkan teknologi web. SMK Muhammadiyah Prambanan khususnya pada Jurusan Multimedia, memiliki konten pembelajaran Informatika. Selain pembelajaran formal wajib yang diberikan dalam rangka mencapai kompetensi utama, siswa dapat menguasai keterampilan di luar mata pelajaran yang diperlukan. Tidak semua siswa mengenal dan pernah belajar web design khususnya dari aspek keamanan informasi, sehingga keterampilan tambahan keamanan sistem dan jaringan akan menjadi ilmu yang bermanfaat serta pelatihan perancangan website berbasis keamanan informasi dapat dilaksanakan untuk menunjang kompetensi dalam mempersiapkan siswa beradaptasi dengan perkembangan teknologi. Pelatihan keterampilan Web Design serta edukasi mengenai kejahatan dan keamanan internet dilaksanakan dalam bentuk kegiatan Pengabdian kepada Masyarakat bagi siswa SMK Muhammadiyah Prambanan. Pelatihan ini merupakan salah satu inovasi untuk menyelesaikan tantangan teknologi, mempersiapkan siswa dengan keterampilan tambahan dan meningkatkan kapasitas kemampuan dan pengetahuan. Target dari pelatihan ini adalah mini project web design yang dipraktekkan oleh siswa SMK Muhammadiyah Prambanan. Sebanyak 20 peserta sesuai dengan yang direncanakan. Hasil pengukuran capaian kompetensi diperoleh sebanyak 84% peserta telah memiliki kompetensi wawasan dalam pembuatan dan pengelolaan webiste yang diukur dari post-test dan hasil praktik pembuatan website.
Automated Essay Scoring menggunakan Cosine Similarity pada Penilaian Esai Multi Soal Lahitani, Alfirna Rizqi
Jurnal Kajian Ilmiah Vol. 22 No. 2 (2022): May 2022
Publisher : Lembaga Penelitian, Pengabdian Kepada Masyarakat dan Publikasi (LPPMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/m8n1x493

Abstract

Process of determining scores automatically from one or several documents based on text data included in the field of Automated Essay Scoring (AES). Mechanism for scoring answers manually takes a long time to assess students' essay answers, especially for multi-question answers. The implementation of Automated Essay Scoring (AES) is to make correction and scoring easier by application that run on computers. This study applied TF-IDF weighting method and cosine similarity measurement method in multi-question of essay answer document. The test carried out through the preprocessing phase for data extraction, then weighting on each word term. Weighted value is the calculated using cosine similarity to get the degree of similarity. In each question, the point has been given, the cosine similarity value can be calculated with points from each question. This process produces a final score from student answer document which is compared with an expert document. By using the principle of similarity, only the relevant text or character from an expert document will be given weight, to get the similarity value, the number of terms contained in the answer document must match, neither in fewer nor more in number.
Mapping User Dissatisfaction in Mobile Banking Applications Using Ensemble Clustering LDA and LSA Kusumaningtyas, Kartikadyota; Lahitani, Alfirna Rizqi; Dwijayanti, Irmma; Habibi, Muhammad
IJNMT (International Journal of New Media Technology) Vol 12 No 1 (2025): Vol 12 No 1 (2025): IJNMT (International Journal of New Media Technology)
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/ijnmt.v12i1.3804

Abstract

Mobile banking has become one of the most popular choices compared to other online banking services. Google Play Store is an online application store platform provides a review section for users to give ratings and comments on the applications they use. Positive reviews typically contain good experiences that reflect user satisfaction, while negative reviews usually contain poor experiences that indicate complaints and user dissatisfaction. However, Google Play Store does not yet have a feature to automatically map the main topics in both positive and negative reviews. Specifically for negative reviews, this can make it difficult for developers to understand the root problems and take appropriate corrective actions. In some situations, negative reviews need to be handled more quickly. Slow handling of negative reviews can impact the decline in reputation and customer loyalty. This research aims to identify user dissatisfaction topics based on negative reviews of several popular mobile banking applications in Indonesia, namely BCA Mobile and BRImo.
PENINGKATAN KEWASPADAAN TERHADAP KEJAHATAN SIBER PADA APLIKASI WHATSAPP DI KALURAHAN BANGUNJIWO Hariyadi, Dedy; Lahitani, Alfirna Rizqi; Dwijayanti, Irmma; Kusumaningtyas, Kartikadyota; Dewi, Grita Supriyanto
Jurnal Pengabdian Masyarakat - Teknologi Digital Indonesia. Vol 4, No 2 (2025): Oktober 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat - Universitas Teknologi Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26798/jpm.v4i2.1476

Abstract

Potensi serangan siber yang semakin kompleks memberikan dampak peningkatan kejahatan di ruang siber dengan \textit{initial access}  pada pengguna perangkat digital. Aplikasi whatsapp sebagai produk perkembangan teknologi memberikan ruang baru bagi penjahat siber untuk melakukan penipuan \textit{online} dan pencurian informasi. Untuk mengatasi masalah ini, sebuah inisiatif Pengabdian kepada Masyarakat dari Universitas Jenderal Achmad Yani Yogyakarta bersama Desa Mitra, Kalurahan Bangunjiwo, Kabupaten Bantul, Daerah Istimewa Yogyakarta memberikan pendampingan untuk peningkatan kesadaran tentang ancaman ruang siber dan melatih warga tentang langkah-langkah keamanan dasar, seperti \textit{Multi Factor Authentication} (MFA) dan \textit{Two-step Verification}. Inisiatif ini terdiri dari beberapa fase, termasuk koordinasi, observasi, sosialisasi, evaluasi, dan pelaporan, yang bertujuan untuk meningkatkan pemahaman masyarakat tentang praktik keamanan siber. Sebagai hasil dari program ini, para peserta menunjukkan peningkatan yang signifikan dalam pengetahuan mereka tentang ancaman serangan siber dan penerapan langkah-langkah keamanan. Upaya penting dalam pendidikan dan dukungan berkelanjutan untuk memperkuat ketahanan masyarakat dalam menghadapi kejahatan siber. Selain itu inisiatif yang berkelanjutan sangat penting untuk menjaga kesadaran dan melindungi warga di ruang siber. Inisiatif ini tidak hanya memberdayakan masyarakat dengan informasi penting tetapi juga menumbuhkan pendekatan proaktif terhadap keamanan siber dengan harapan kontribusi pada ruang siber yang lebih aman bagi masyarakat.
Analisis Tingkat Penerapan Nilai Kejuangan Jenderal Achmad Yani (NKJA) dengan Menggunakan K-Means (Studi Kasus : Mahasiswa Angkatan 2022 Universitas Jenderal Achmad Yani Yogyakarta) Hanafi, Ahmad; Aesyi, Ulfi Saidata; Lahitani, Alfirna Rizqi
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 16, No 2 (2024): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v16i2.2010

Abstract

General Achmad Yani University Yogyakarta is one of the universities that provides education with one of the NKJA implementation lecture programs. The NKJA course has been held for the first time for 2022 students. To determine the level of application of the NKJA for Class of 2022 students, analysis using k-means is needed. Efforts were made to optimize clusters from k-means results by searching for the best clusters using silhouette scores. The results of this research are 5 clusters which are the best number of clusters. In the 4th cluster, the highest results were obtained with the analysis that the Class of 2022 students had applied the 3 values of the NKJA in their daily lives with the values of struggle, courage and discipline
Analisis Beban Kerja Mental Dosen Fakultas XYZ Menggunakan Metode Nasa TLX Dewi, Grita Supriyanto; Finansia, Cici; Lahitani, Alfirna Rizqi
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 2 (2024): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i2.25973

Abstract

Employee performance is influenced by several things, one of which is work stress. Unresolved stress results in a person's inability to interact positively with their environment. XYZ Faculty is one of the faculties in a private university in the Yogyakarta area. Based on personnel data, the average 2023 BKD for XYZ Faculty lecturers is 18.65. This creates an excessive burden on lecturers. This research aims to measure the mental workload index of XYZ faculty lecturers and develop recommendations for improvement to balance the workload. The method used in this research is the Nasa TLX method. The results of the research show that the workload experienced by lecturers at Faculty so that administrative activities do not interfere with lecturers' tri dharma activities.
User Requirement Recommendation Model for Waste Reporting Platforms Based on UX Topics and Sentiment Analysis Dwijayanti, Irmma; Lahitani, Alfirna Rizqi; Habibi, Muhammad
Journal of Applied Informatics and Computing Vol. 9 No. 6 (2025): December 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i6.11371

Abstract

Waste management remains a critical issue in Indonesia, as emphasized in the RPJMN 2025–2029. Ineffective collection and processing services, coupled with limited public participation, continue to hinder progress. Meanwhile, social media has emerged as a primary channel for citizens to express complaints and reports on waste, yet the unstructured nature of comments poses challenges for integration into official reporting systems. This study proposes a user requirements recommendation model based on social media data by integrating sentiment analysis, topic modeling, and rule-based recommendation. Data were collected from YouTube and TikTok comments. Sentiment classification was performed using Support Vector Machine (SVM), while Latent Dirichlet Allocation (LDA) was employed for topic modeling, with results mapped onto the UX Honeycomb dimensions. Recommendation rules were then formulated by combining sentiment polarity with UX dimensions. The SVM model achieved an average accuracy of 87.5% with balanced precision, recall, and F1-score. LDA produced 15 coherent topics, which were distributed across seven UX dimensions. The integration revealed that the main user requirements include transparency in report follow-up through real-time notifications and clear status updates. Additional recommendations involve simplifying the reporting process, providing auto-fill features, improving visual design, and establishing a user appreciation system. The findings demonstrate the potential of leveraging social media comments to systematically capture user requirements, offering practical insights for developers to design waste reporting platforms that are effective, user-friendly, and responsive to community expectations.
Co-Authors Adkhan Sholeh Adlia Nur Zhafarina Ahmad Hanafi Ahmad Nurhidayat Alfun Roehatul Jannah Arief Ikhwan Wicaksono Bagas Dwi Santosa Chanief Budi Setiawan Dedy Hariyadi Dewi, Grita Supriyanto Eriksa Gutama Finansia, Cici Irmma Dwijayanti Kusumaningtyas, Kartikadyota Meidiyanto Heri Pratama Muhammad Fahrur R Muhammad Habibi Nafisa Alfi Sa'diya Nanang Widayanto Nanda Saputri Windi Oktavia Netania Indi Kusumaningtyas Nisa, Isnaini Syarifatun Nisa Nita Jariyah Nofa Shintia Noviana Wulandari Rahmat Miyarno Saputro Riyanto Tri Kurniawan Rosid, Ibnu Abdul Taufaldisatya Wijatama Diwangkara Tegar Fatwa Nugroho Ulfi Saidata Aesyi Uning Kristiana