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All Journal International Journal of Electrical and Computer Engineering Jurnal Teknoin JURNAL SISTEM INFORMASI BISNIS Jurnal Buana Informatika Bulletin of Electrical Engineering and Informatics Journal of Education and Learning (EduLearn) Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) JUTI: Jurnal Ilmiah Teknologi Informasi Jurnal Algoritma Jurnal Teknologi Informasi dan Ilmu Komputer Jurnal Transformatika Journal of Information Systems Engineering and Business Intelligence Khazanah Informatika: Jurnal Ilmu Komputer dan Informatika Register: Jurnal Ilmiah Teknologi Sistem Informasi InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Sistemasi: Jurnal Sistem Informasi Journal of Applied Geospatial Information JOIV : International Journal on Informatics Visualization Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi JURNAL MEDIA INFORMATIKA BUDIDARMA Information System for Educators and Professionals : Journal of Information System SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI Jurnal Sisfokom (Sistem Informasi dan Komputer) GUIDENA: Jurnal Ilmu Pendidikan, Psikologi, Bimbingan dan Konseling Indonesian Journal of Computing and Modeling JURIKOM (Jurnal Riset Komputer) Jurnal Informatika JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Journal of Information Systems and Informatics Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Jurnal Abdi Insani Abdimasku : Jurnal Pengabdian Masyarakat Aiti: Jurnal Teknologi Informasi Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Teknik Informatika (JUTIF) Journal of Applied Data Sciences JOINTER : Journal of Informatics Engineering IJECS: Indonesian Journal of Empowerment and Community Services International Journal of Community Service Jurnal Impresi Indonesia Jurnal Nasional Teknik Elektro dan Teknologi Informasi Magistrorum et Scholarium: Jurnal Pengabdian Masyarakat Jurnal Rekayasa elektrika Jurnal INFOTEL Scientific Journal of Informatics JuTISI (Jurnal Teknik Informatika dan Sistem Informasi)
Kristoko Dwi Hartomo
Universitas Kristen Satya Wacana
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Perancangan Sistem Informasi Evaluasi Kinerja Guru Berbasis Website Menggunakan Soft System Methodology (SSM) (Studi Kasus di SMK Taruna Tama Getasan) Sinulingga, Yedija Sada Ukurta; Hartomo, Kristoko Dwi
Jurnal Transformatika Vol. 19 No. 1 (2021): July 2021
Publisher : Jurusan Teknologi Informasi Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/transformatika.v19i1.2921

Abstract

Performance assessment system is a reference of school to determine the performance quality of a teacher that also a reference to determine their career development and career promotion. The teacher has to improve their skills and ability to apply the competence to improve the quality of the learning process. The expansion of performance assessment information system in SMK Taruna Tama Getasan Salatiga will help the assessor  to make performance assessment report because the previous method they used conventional system that hinder the process of   the rating like a difficult calculation and take so much time. This system use Soft System Methodology (SSM) by using structured approach to understand some issues, build conceptual mode, get eligibility and the implementation. System testing use Webqual 4.0 and using 3 (three) instruments are Usability Quality, Information Quality and Service Interaction Quality. By using 122 that processed by SPSS software   which testing the validity test, reliability and linear regression correlation. From the test result that the website of performance assessment system are having a good quality based on Usability Quality, Information Quality and Service Interaction Quality.    
Analisis Kolaborasi Hubungan Karyawan Menggunakan Metode Social Network Analysis (Studi Kasus Dinas Kearsipan dan Perpustakaan Kabupaten Boyolali) Kuncoro, Wreda Agung; Sediyono, Eko; Hartomo, Kristoko Dwi
Jurnal Transformatika Vol. 20 No. 2 (2023): January 2023
Publisher : Jurusan Teknologi Informasi Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/transformatika.v20i2.6240

Abstract

Good local government performance, especially related to the realization of good corporate governance, can be created if there is good communication between agencies, employees and compact collaboration to synergize policies that facilitate public services. To optimize government performance, one of which is the Boyolali District Archives and Library Service through collaborative relationships between employees so as to create intense two-way communication. This study aims to identify social networks related to collaboration between employees using the Social Network Analysis method and a total of 40 people as respondents, but only 32 people filled out the questionnaire data completely. The indicators used in viewing the research results are density values, degree centrality values, closeness centrality values, betweenness centrality values, and clique values. The results of the analysis obtained a network density level of 14.8% (considered weak because it is less than 50 percent). Employee number 21 has the highest degree centrality value and betweenness centrality value, then employee number 9 has the highest closeness centrality. This research concludes that there is a good collaborative relationship between the four departments in the Archives and Library Office of Boyolali Regency, namely the Operations department, the Service department, the Archives department, and the Librarian department.  
Implementation of the PIECES Framework as an Evaluation of Student Satisfaction Levels with the Use of STARS UKSW Muflihanto, Ezar Juan; Hartomo, Kristoko Dwi
Journal of Information System and Informatics Vol 6 No 2 (2024): June
Publisher : Universitas Bina Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v6i2.726

Abstract

This research aims to evaluate the level of student satisfaction with the use of the Academic Information System (STARS) at Satya Wacana Christian University (UKSW) using the PIECES (Performance, Information, Economy, Control, Efficiency, and Service) framework. The research method used was a survey with a structured questionnaire distributed to a sample of students from various study programs at UKSW. The collected data was analyzed using descriptive statistical techniques and the PIECES Framework to measure STARS performance from the user's perspective. The research results show that although STARS has provided good performance in several aspects, there are areas that require improvement to increase user satisfaction. The implication of this research is the importance of using a framework such as PIECES in evaluating information systems to thoroughly understand user needs and perceptions, as well as providing a strong basis for improvement and development of better systems in the future.
Pengembangan Perangkat Lunak Berbasis Website Menggunakan Kombinasi Metode Scrum Dan V-Model Tumbade, Marcho Oknivan; Hartomo, Kristoko Dwi; Purnomo, Hindriyanto Dwi
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 11 No 3: Juni 2024
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jtiik.938456

Abstract

Penelitian membahas software engineering berbasis website dengan hybrid model integrasi pada universitas terkait. Rumusan masalah penelitian menghasilkan software engineering berbasis website mudah digunakan serta diakses mahasiwa berstatus aktif, menghasilkan software engineering layanan berbasis website mampu melacak status aduan, dan efektivitas serta efisiensi hybrid model integrasi antara metode Agile Scrum dan V-Model dalam development software engineering. Hasil penelitian untuk menyelesaikan masalah menggunakan metode deskriptif kualitatif dengan dukungan hybrid model integrasi Scrum dan V-model sehingga mengusulkan integrasi Scrum V-Plus berbasis website, hybrid model integrasi memanfaatkan kelemahan masing masing metode agar saling melengkapi, sehingga peranan Scrum sebagai tahapan awal perancangan lalu dikembangkan V-model secara terstruktur dan tersistematik kedalam modul development proses software engineering. Dengan adanya Model Integrasi Scrum V-Plus yang berjalan maka dilakukan rancangan prototype model, design dan pengujian website sebagai media validasi pembuktian bahwa dokumentasi proses bisnis secara terstruktur memiliki dampak signifikan terhadap kolaborasi metode dalam menghasilkan produk. Penelitian mengusulkan Model Scrum V-Plus Hybrid yang diadopsi dari kolaborasi kedua metode untuk berperan penting terhadap tahapan perancangan engineering terstruktur, fleksibel secara keseluruhan dalam mengintegrasikan beberapa tahapan, sehingga rancangan software terlaksana dengan baik dibuktikan model integrasi website bagi mahasiswa berstatus aktif menggunakan open data base connectivity restfulAPI pada deployment diagram berdasarkan model class diagram yang dilengkapi dengan boundary, entity dan conrol. Hybrid model integrasi memiliki dampak signifikan dibandingkan penggunaan secara terpisah dengan dibuktikan integrasi testing.
PENDAMPINGAN PERIZINAN USAHA MIKRO KECIL MENENGAH BINAAN KAMPUNG KB SEMBADA, DESA SAMIRONO Evi Maria; Martin Setyawan; Hanna Prillysca Chernovita; Tri Harjani; Kristoko Dwi Hartomo
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 4 (2023): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i4.19719

Abstract

ABSTRAKTujuan kegiatan pengabdian masyarakat ini adalah untuk membantu Usaha Mikro Kecil Menengah (UMKM) binaan Kampung KB Sembada, Desa Samirono untuk memperoleh legalitas bisnis melalui pendampingan pengurusan perizinan berusaha. Ada tiga perijianan yang didampingi, yaitu Nomor Induk Berusaha (NIB), Sertifikat Halal, dan Sertifikat Produksi Pangan-Industri Rumah Tangga (SPP-IRT). Peserta kegiatan ini berjumlah 18 UMKM. Ada tiga tahapan dalam kegiatan pengabdian ini. Pertama, sosialisasi perizinan berusaha. Kedua, pendataan dan pendampingan perizinan berusaha. Ketiga, pendaftaran perizinan berusaha. Kegiatan pengabdian ini dilaksanakan dari tanggal 5 sampai 23 September 2023. Dari 18 UMKM, hanya 13 UMKM yang berkomitmen untuk didampingi dalam kegiatan pengurusan perizinan, tiga UMKM sudah memiliki izin berusaha lengkap, dan dua UMKM tidak bersedia mengurus perizinan berusaha karena merasa belum membutuhkannya. Hasil kegiatan pengabdian masyarakat ini adalah terdapat 10 (sepuluh) UMKM yang mendapatkan NIB, delapan UMKM yang telah mengajukan permohonan untuk Sertifikat Halal, dan 6 (enam) produk UMKM yang telah terbit SPP-IRT. Produk UMKM yang telah terbit SPP-IRT masih memiliki kewajiban memenuhi komitmen mengikuti penyuluhan keamanan pangan dan memenuhi persyaratan cara produksi pangan dalam jangka waktu tiga sampai enam bulan, sehingga Kampung KB Sembada masih harus terus melakukan pendampingan hingga kewajiban tersebut terpenuhi. Kata kunci: kampung KB; perizinan berusaha; UMKM ABSTRACTThis community service activity aims to help Micro, Small, and Medium Enterprises (MSMEs) assisted by Kampung KB Sembada, Samirono Village, obtain business legality through assistance in processing business permits:Business Permit Number (NIB), Halal Certificate, and Household Food-Industry Production Certificate (SPP-IRT). Participants in this activity were 18 MSMEs. There are three stages in this community service. First, socialization of business licensing. Second, data collection and business licensing assistance. Third, registration of business permits. This service activity was held from 5 to 23 September 2023. Of the 18 MSMEs, only 13 were committed to being assisted in the business permits, three had complete business permits, and two were unwilling to take care of business permits because they felt they did not need them. This community service activity shows that 10 MSMEs have had NIB issued, eight MSMEs have submitted applications for Halal Certificate, and six MSME products have had SPP-IRT issued. MSMEsproducts that have been issued SPP-IRT still must fulfill their commitment to follow food safety education and satisfy the requirements for suitable food production methods within a period of three to six months so that the Kampung KB Sembada still have to continue to assist until this obligation fulfilled. Keywords: kampung KB ; business permits; MSME
Risk Management Analysis of School Management Information Systems Using ISO 31000:2018 Anita Sulistiawati; Kristoko Dwi Hartomo
Sistemasi: Jurnal Sistem Informasi Vol 13, No 5 (2024): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v13i5.4424

Abstract

The school management information system (SIAHDU) is an application managed by the IT department of a Vocational High School in Salatiga City. This application is an application of SI/IT in the education sector which was created with the aim of making school business processes more effective and efficient, such as administrative activities for paying tuition fees, managing grades and report cards, violation points, attendance and student biodata that can be accessed by teachers and students. With the convenience provided, it cannot be denied that risks will always arise both internally and externally. Based on this, risk management activities need to be carried out to minimize risks that might hamper and stop the system's business processes. In this research, the ISO 31000:2018 framework is used as a risk analysis assessment guide. The stages used are divided into risk assessment and mitigation stages so that it is hoped that they can minimize and overcome existing risks. The aim of this research is to carry out risk assessments and risk mitigation in school management information system applications using ISO 31000:2018. The results of the day of research that was carried out contained 25 risk opportunities, three of which were at a high level, fourteen were at a medium level, eight were at a low level. It is hoped that the results of this risk management documentation will become a reference for schools to implement new policies to minimize risk opportunities Keywords: risk management, ISO 31000:2018, risk analysis
Rainfall Prediction in Tegal Regency using ETSFormer Zenitha Eunike Tridinatha; Kristoko Dwi Hartomo
Sistemasi: Jurnal Sistem Informasi Vol 13, No 5 (2024): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v13i5.4422

Abstract

Weather is the atmospheric condition at a specific location and time that is variable and constantly changing. Many factors influence weather conditions, one of which is rainfall. Rainfall is a climatic parameter characterized by high variability due to climate anomalies. These anomalies make rainfall prediction very challenging. Specific factors can cause uneven distribution patterns of rainfall between different regions. The exact amount of rainfall that will occur cannot be determined precisely, but predictions or estimations can be made for future rainfall amounts. This study predicts rainfall in Tegal Regency using ETSFormer. Its aim is to provide useful information about future rainfall patterns for the community, especially in Tegal Regency, to facilitate daily activities. The results show that the ETSFormer model effectively predicts rainfall, achieving optimal results with an 8:2 data composition using univariate analysis, yielding the best MSE evaluation metric of 0.002925439039245248 and MAE of 0.036676984280347824.
UI/UX Model of Personnel Information System at the Synod Office using Design Thinking Method Dewi, Stefani Fransisca; Hartomo, Kristoko Dwi
Sistemasi: Jurnal Sistem Informasi Vol 14, No 1 (2025): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v14i1.4992

Abstract

The GKJ Synod Office is the administrative center for the Javanese Christian Churches, managing several service units such as correspondence, licensing for institutions/foundations, finance, and publishing materials for spiritual development. The GKJ Synod Office still faces issues related to employee data management, requiring technology to help address these challenges. The research uses the Design Thinking method, as it focuses on a user-centered approach, understanding the problems and limitations of users to create designs that align with their needs. This study results in a User Interface (UI) and User Experience (UX) model for a web-based employee information system that can be adopted by synods of churches across Indonesia. System testing was conducted to measure user satisfaction with the design of the employee information system, using the System Usability Scale (SUS) method. The final result for the admin was 88, and for the superadmin, it was 91. Based on the SUS Score interpretation criteria, the resulting system design received a grade (A), an adjective rating of (excellent), and acceptability ranges (acceptable), indicating a high level of user satisfaction.
Multi-Objective k-Nearest Neighbor for Breast Cancer Detection Nataliani, Yessica; Arthur, Christian; Wellem, Theophilus; Hartomo, Kristoko Dwi; Wahab, Nur Haliza Abdul
JOIV : International Journal on Informatics Visualization Vol 9, No 1 (2025)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.9.1.2669

Abstract

Early detection of cancer is crucial. This study aims to increase the efficiency of breast cancer detection using the modified k-nearest neighbor (k-NN) algorithm. Since k-NN faces challenges with sensitivity to k values and computational complexity, a modification of k-NN was proposed, namely a multi-objective k-NN model. It was developed to incorporate multi-objective optimization and local density to create a more robust and efficient classification algorithm. The model dynamically determines the k value based on the sample density, optimizing accuracy and efficiency. Breast cancer data were collected from the University of Wisconsin Hospitals, Madison. The experimental results showed that the multi-objective k-NN model outperformed traditional k-NN and k-NN with feedback support. The proposed model achieved an accuracy of 93.7%, with precision values of 93% for the negative cancer class and 94% for the positive cancer class. These results indicate that the multi-objective k-NN model provides superior accuracy and precision in breast cancer detection, demonstrating its potential for clinical applications.
Aesthetic Photography Analysis on Instagram: A Visual Study of Social Media using ATLAS.ti Wibowo, Mars Caroline; Purnomo, Hindriyanto Dwi; Hartomo, Kristoko Dwi; Sembiring, Irwan
Scientific Journal of Informatics Vol. 11 No. 4: November 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v11i4.13985

Abstract

Purpose: This study aims to analyze the dominant trends in color and composition within aesthetic photography on Instagram and explore their influence on user interaction, specifically likes and comments. Given the growing role of visual aesthetics in digital marketing, understanding these elements is crucial for content creators, brands, and businesses aiming to maximize engagement. Unlike previous studies that focus on general social media engagement, this research integrates technology-driven qualitative analysis using ATLAS.ti, enabling structured coding and thematic identification of visual elements. Methods: A qualitative content analysis was conducted on 591 Instagram posts tagged with #AestheticPhotography and #VisualAesthetic. Data was collected using Instagram scraping (PhantomBuster), extracting both visual (color palettes, composition techniques) and textual (captions, metadata) elements. The ATLAS.ti software was used to analyze recurring visual patterns and color extraction was performed via Google Colab and Python for accuracy. Result: The results show that natural colors (48.18%) and pastel tones (30.90%) are dominant in aesthetic photography, contributing to higher engagement due to their harmonious and calming effect. Composition techniques such as center alignment (40.51%) and the Rule of Thirds (23.27%) significantly correlate with user interaction, as they align with cognitive load theory and visual perception principles. Additionally, short captions (≤10 words) were more effective in enhancing engagement, receiving 8,876 likes and 4,432 comments on average, compared to longer captions. Novelty: This study bridges the gap between visual aesthetics and computational analysis, using ATLAS.ti to systematically examine social media trends. Unlike previous studies that focus solely on quantitative metrics, this research provides qualitative insights into how color and composition influence engagement. The findings offer practical guidance for content creators, designers, and marketers, suggesting that strong visual composition and color harmony can enhance audience engagement.
Co-Authors Ade Iriani Adyatma Andhika Bagaskara Agus Bambang Nugraha Ahmad Ashifuddin Aqham Alexandra, Andrea Cellista Allu, Roy Armus Andeka Rocky Tanaamah Andreas Arga Rinjani Saputro Andriana, Myra Angelia Destriana Anggara Cahya Putra Anita Sulistiawati Anthony Y.M. Tumimomor April Firman Daru Ariany Mahastanti, Linda Ariel Kristianto Arthur, Christian Aruperes, Viveca Grivenda Aryanata Andipradana Baali, Gabriel Megfaden Kenisa Brilliananta Radix Dewana Chandra Husada Danny Manongga Danny Sebastian Dearmelliani Tarigan Desyandri Desyandri Dewi, Stefani Fransisca Dian Widiyanto Chandra Diky Candra Muria Pratama Djoko Hartanto Dwi Anggono Winarso Suparjo Putra Dwi Hosanna Bangkalang Eko Sediyono Enik Muryanti Estie Grace Melisa Sinulingga Evangs Evi Maria Evi Maria Evi Maria Ezra Julang Prasetyo Faudisyah, Alfendio Alif Gerry Santos Lasatira Gladiola Lavinia Ambayu Gogo Krisatyo Hanna Arini Parhusip Hanna Prillysca Chernovita Hindriyanto Dwi Purnomo Indrajaya, Denny Irwan Sembiring Ismanto, Bambang Ismanto Joanito Agili Lopo Joanito Agili Lopo Johan Jimmy Carter Tambotoh Joshua Rondonuwu Josua Josen Alexander Limbong Karina Bianca Lewerissa Kevin Benedictus Simarmata Kevin Hendra William Kevin Stevian Hermawan Kezia Sharent Kodoati Kuncoro, Wreda Agung Kurniawan, Timothy Arif Linda Ariany Mahastanti Lobo, Murry Albert Agustin Lutfi Rahmawati Magdalena Ariance Ineke Pakereng Martin Setyawan Martin Teddy Sihite Matheus Supriyanto Rumetna Mila Chrismawati Paseleng Mozad Timothy Waluyan Muflihanto, Ezar Juan Muhammad Rizky Ramadhan Muhammad Sholikhan Neilin Nikhlis Nicolas Evander Suhandi Nina Setiyawati Nining Fitriani nuranto, bogo Nurrokhman Nurrokhman Nuzhah Al Waaidhoh Penidas Fodinggo Tanaem Prakoso, Hendri Suryo Pramudhita Tunjung Seta Prasianto, Kornelius Reinand Purnomo, Andreas Wisnu Adi Purwanto Purwanto Raditya Ditto Aryaputra Radius Tanone Radjawane, Samy Rahmat Abadi Suharjo Raymond Elias Mauboy Rizaldi, Alexander Sandy Pratama Septian Silvianugroho Sinulingga, Yedija Sada Ukurta Sri Yulianto Sri Yulianto Joko Prasetyo Sri Yulianto Prasetyo Stevan Hamonangan Hardi Suhandi, Nicolas Evander Suryasatriya Trihandaru Sutarto Wijono T. Arie Setiawan P Takakobi, Michael Richard Teguh Wahyono Theopillus J. H. Wellem Tri Harjani Tri Wahyuningsih Triloka Mahesti Tumbade, Marcho Oknivan Wahab, Nur Haliza Abdul Wibowo, Mars Caroline Winarko, Edi Wiwien Hadikurniawati Yessica Nataliani Yohan Maurits Indey Zenitha Eunike Tridinatha