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All Journal Journal of Information Systems and Informatics Reswara: Jurnal Pengabdian Kepada Masyarakat
Henoch Juli Christanto
Atma Jaya Catholic University of Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences

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Sentiment Analysis of Customer Feedback Reviews Towards Hotel’s Products and Services in Labuan Bajo Henoch Juli Christanto; Yerik Afrianto Singgalen
Journal of Information System and Informatics Vol 4 No 4 (2022): Journal of Information Systems and Informatics
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v4i4.294

Abstract

The feedback review column on the TripAdvisor website can process the sentiment analysis by classifying the positive and negative impressions of the consumer using machine learning, namely text mining. This study analyzes consumer sentiment for hotel products and services in Labuan Bajo based on feedback review data on the TripAdvisor website. Meanwhile, the algorithm used is Nave Bayes Classifier (NBC), Support Vector Machine (SVM), also SMOTE Upsampling for the k-Nearest Neighbor (k-NN) algorithm. The classification result shows 702 negative feedback reviews and 2531 positive feedback reviews. The evaluation of algorithm performance shows the accuracy of SVM is 78,30% and NBC is 78,29% compared with k-NN with 85,24% accuracy, using SMOTE Upsampling with a class precision description of 100% prediction negative (1784 true Neg & 0 true Pos) and 77,21% prediction positive (747 true Neg & 2531 true Pos). The class recall description also shows 70,49% true Negative (1784 pred Neg & 747 pred Pos) and 100% true Positive (0 pred Neg & 2531 pred Pos). These findings indicate that the k-NN algorithm shows the best result instead of the SVM and NBC algorithm, according to the sentiment analysis result of customer feedback reviews on hotel products and services in Labuan Bajo through TripAdvisor website.
Game Theory Analysis on Marketing Strategy Determination of KAI Access and Traveloka based on Usability of HCI (Human-Computer Interaction) Henoch Juli Christanto
Journal of Information System and Informatics Vol 4 No 3 (2022): Journal of Information Systems and Informatics
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v4i3.300

Abstract

In the era of digitalization, KAI finally transformed train ticket booking transactions by launching the KAI Access application. By applying the optimal strategy of Game Theory, KAI Access will be able to compete with marketplaces such as Traveloka to be able to represent itself to the community as a credible company. Game Theory was chosen to analyze the existing competition to find the optimum strategy. Because both applications sell the same product, the strategy will be seen from the services provided by both applications using the usability of HCI. The 5 strategies are Learnability, Efficiency, Memorability, Errors, and Satisfaction. The best strategy used by KAI Access to obtain maximum profit is the low error rate (errors) strategy, while for Traveloka the strategy used to minimize loss is the ease of application (learnability).
Analysis and Design of Student Guidance Information System through Software Development Life Cycle (SDLC) and Waterfall Model Henoch Juli Christanto; Yerik Afrianto Singgalen
Journal of Information System and Informatics Vol 5 No 1 (2023): Journal of Information Systems and Informatics
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v5i1.443

Abstract

Universities play an essential role in encouraging digital literacy as a form of support to accelerate digital transformation in Indonesia. One of the strategic steps to support the acceleration of digital transformation is to carry out organizational change in the academic scope. One of the innovative ideas to facilitate the thesis registration process, selection of supervisors, and thesis consultation is the existence of an integrated and accountable control system. This research proposes an idea to analyze and design the Information System for Thesis Consultation Process known as SIBIMA using the Software Life Cycle Development (SDLC) method according to the Waterfall model. SIBIMA is intended to support services in the education sector by adjusting the context of the values of the Atma Jaya Catholic University of Indonesia, namely Kristiani, Unggul, Peduli, and Profesional. Thus, students, lecturers, and academic staff complement each other in improving the quality of education. The case study of application design is adjusted to the registration process, selection of supervisors, and thesis consultation at the Head of Tourism Department, Faculty of Business Administration and Communication Sciences, Atma Jaya Catholic University of Indonesia.
Usability Analysis of Atma Jaya Catholic University E-Learning Based on Human Computer Interaction Henoch Juli Christanto; Stephen Aprius Sutresno; Vincentius Setiawan Suandi
Journal of Information System and Informatics Vol 5 No 3 (2023): Journal of Information Systems and Informatics
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v5i3.512

Abstract

E-learning UAJ is a system provided by Unika Atma Jaya to facilitate the learning process for both students and lecturers. However, this system is still rarely used, especially among engineering faculties. This forms the basis for conducting the following analysis. The purpose of this research is to measure the level of usability of the UAJ e-learning system. Usability analysis is carried out using five components of usability outlined by Jakob Nielsen: Learnability, Efficiency, Memorability, Errors, and Satisfaction. The indicators within these five components are then compiled into a questionnaire, which will be distributed to active lecturers and students across all faculties who utilize the UAJ e-learning platform. This study employs a Likert scale with five categories, ranging from category 1 indicating "very bad" to category 5 indicating "very good." Among the five usability criteria assessed for both students and lecturers, the majority of responses fell within category 3, indicating sufficiency. The average scores ranged from 14.122 to 18.731 for lecturers and from 19.825 to 21.845 for students. Overall, the usability level of the UAJ e-learning platform is deemed satisfactory, enabling more effective utilization by both lecturers and students. Additionally, the study results propose several solutions for enhancing the development of the UAJ e-learning system.
Edukasi Pengenalan Dasar Web Design di SMAK 7 Penabur Jakarta Eugenius Kau Suni; Stephen Aprius Sutresno; Henoch Juli Christanto; Gilberto Dennis G E Sidabutar
RESWARA: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2024)
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/rjpkm.v5i2.4333

Abstract

Sebagian besar lembaga pendidikan telah melakukan upaya nyata untuk memajukan kecerdasan bangsa dengan menerapkan penggunaan teknologi khususnya komputer dalam kegiatan belajar mengajar. Salah satu sekolah ternama yaitu SMAK 7 Penabur Jakarta telah menerapkan teknologi dalam proses pengajarannya sesuai dengan visi dan misi sekolah. Pada tanggal 9 dan 10 November 2023 sekolah tersebut menggelar kegiatan Workshop IT Camp yang dimana salah satu dosen dari prodi Sistem Informasi Universitas Katolik Indonesia Atma Jaya (Unika Atma Jaya) ikut berpartisipasi sebagai narasumber. Melihat latarbelakang para peserta kegiatan yang tidak rata tentang pengetahuan komputer khususnya kemampuan dalam pembuatan program yang masih cukup rendah, maka narasumber memilih materi pengenalan dasar web design, karena materi ini bersifat fundamental dan tidak terlalu terkait dengan kode program. Kegiatan ini dilakukan dengan tujuan memberikan pengetahuan baru terkait pembuatan web sederhana dengan memperhatikan unsur-unsur dari web design dan dapat melatih meningkatkan imajinasi dan kreativitas dalam membuat tampilan aplikasi web yang baik bagi peserta didik di SMAK 7 Penabur Jakarta. Seluruh rangkaian kegiatan ini dilakukan dengan tahapan persiapan, pelaksanaan, dan evaluasi. Narasumber berhasil melaksanakan kegiatan edukasi pengenalan dasar web design di SMAK 7 Penabur Jakarta yang dihadiri oleh 21 peserta siswa-siswi SMA dari kelas X, XI, dan XII dengan baik dan tanpa kendala yang serius. Hasil evaluasi kegiatan menunjukkan nilai post-test mengalami peningkatan sebesar 26,7% dibanding nilai pre-test, sehingga dapat ditarik kesimpulan bahwa peserta masih dapat memahami materi yang diberikan oleh narasumber
Design and Development of the Mobile-Based Hydroponic Planting Machine Application MyHydro Henoch Juli Christanto; Stephen Aprius Sutresno; Ricardo Jonathan Lim; Lusiana V.G Angkur; Pauelina Charmelita; Vierena Valentina; Christine Dewi
Journal of Information System and Informatics Vol 5 No 4 (2023): Journal of Information Systems and Informatics
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v5i4.581

Abstract

In the contemporary era, technological advancements have significantly impacted various aspects of human life, offering increased efficiency and convenience. Indonesia, aiming to enhance international competitiveness, recognizes the importance of integrating technological innovation across economic sectors. Despite its abundant natural resources, Indonesia's vital agricultural sector faces challenges, including the limited adoption of modern technology, resulting in suboptimal productivity. This study focuses on addressing these challenges by developing the MyHydro mobile application, utilizing IoT and Progressive Web App (PWA) technology to enable remote monitoring and control of hydroponic systems. The research methodology includes literature review, user requirement analysis, system design, and black-box testing. Results show that MyHydro successfully bridges the gap between traditional farming practices and modern technology. Users can efficiently monitor and control hydroponic systems, enhancing crop yields and promoting sustainability in Indonesian agriculture. In conclusion, MyHydro offers a valuable solution to modernize Indonesian farming, aligning with global trends in smart agriculture. It empowers farmers and contributes to the nation's agricultural growth.
Analysis and Design of Marine Tourism Information System Using Rapid Application Development Titis Puspitarini; Henoch Juli Christanto; Yerik Afrianto Singgalen
Journal of Information System and Informatics Vol 6 No 1 (2024): March
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v6i1.645

Abstract

The research addresses the growing need for efficient management of marine tourism activities in Indonesia, explicitly diving, snorkeling, and fishing. With the rapid expansion of marine tourism, there is a pressing need for innovative solutions to streamline information dissemination and enhance tourist experiences. This study proposes the development of a database and information system utilizing the Rapid Application Development (RAD) methodology to cater to the diverse needs of tourists engaging in marine activities. The Rapid Application Development approach comprises requirement planning, user design, construction, and cutover phases. Oracle Apex serves as the primary instrument for database design and system development. The findings suggest that implementing digital innovation in the form of information systems and databases significantly enhances the tourist experience in marine tourism destinations. Integrating GIS technology enables the visualization of location maps and valuable information, enriching the user experience and facilitating informed decision-making processes. Test results indicate that the application functions optimally and can be utilized effectively for destination management in Indonesia, emphasizing the practical implications of digital innovation in the tourism sector. In conclusion, designing and implementing a database and information system for marine tourism activities offer substantial benefits for destination management and tourist experiences in Indonesia. This research underscores the importance of technological advancements in optimizing destination management and fostering sustainable tourism development in coastal regions.
Exploration of Modernity: Worship Reservation System at Rose of Sharon Church Salatiga Utilizing Flutter Framework Davin Kurnia Hiuredhy; Henoch Juli Christanto; Christine Christine; Stephen Aprius Sutresno
Journal of Information System and Informatics Vol 6 No 1 (2024): March
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v6i1.650

Abstract

Rose of Sharon Church (ROSC) Salatiga, as a rapidly growing spiritual community, faces challenges in managing the increasing number of congregants, especially during events and compliance with health protocols. This significant growth necessitates more effective attendance management to avoid overcrowding. This research addresses this need by developing the ROSC Worship Reservation application based on Progressive Web Apps (PWA) using the Flutter Framework. The application aims to simplify congregants' worship reservations, reduce crowds, and support church administrative tasks. The use of Flutter as the primary framework provides advantages in rapid development and a user-friendly interface. The results of the User Acceptance Test (UAT) show a high satisfaction rate, reaching 92%, regarding the application's functionality and user interface. Additionally, 84% of respondents state that the seating layout displayed by the application significantly aids in effectively choosing seats. It is hoped that the application will continue to provide benefits in managing congregational attendance systematically, efficiently, and in compliance with health protocols. The conclusion of this research emphasizes that the ROSC Salatiga Worship Reservation has successfully created an innovative solution to support church management amid the dynamic growth of congregational attendance.
Game Theory Analysis of Indihome and Biznet in the Salatiga Internet Market Henoch Juli Christanto
Journal of Information System and Informatics Vol 6 No 1 (2024): March
Publisher : Asosiasi Doktor Sistem Informasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51519/journalisi.v6i1.677

Abstract

With the rapid expansion of internet usage in Indonesia, comprehending the competition within the internet service provider sector has become imperative. This study investigates the competitive dynamics between Indihome and Biznet in the Salatiga internet market, examining various strategic dimensions such as pricing strategies, network quality, promotions, payment models, customer service, accessibility, product portfolios, and data security. Employing game theory methodology, the research discerns optimal strategies for each provider, utilizing maximin and minimax strategies to minimize potential losses and maximize potential gains. Validity and reliability testing ensures the integrity of the analysis, confirming the validity and reliability of all variables. Results reveal that Indihome employs strategy X5 (Customer Service) to attain a maximum profit of 36, while Biznet adopts the same Y5 strategy to minimize a loss of 36. This study provides valuable insights for both service providers to adeptly navigate the competitive landscape.
Co-Authors Christine Christine Christine Dewi Davin Kurnia Hiuredhy Eugenius Kau Suni Gilberto Dennis G E Sidabutar Lusiana V.G Angkur Pauelina Charmelita Ricardo Jonathan Lim Stephen Aprius Sutresno Titis Puspitarini Vierena Valentina Vincentius Setiawan Suandi Yerik Afrianto Singgalen