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Jurnal ULTIMA InfoSys
Published by Universitas Multimedia Nusantara
ISSN : 20854579     EISSN : 25811851     DOI : -
Core Subject : Science,
Computer Science & IT
Jurnal ULTIMA InfoSys merupakan Jurnal Program Studi Sistem Informasi Universitas Multimedia Nusantara yang menyajikan artikel-artikel penelitian ilmiah dalam bidang Sistem Informasi, serta isu-isu teoritis dan praktis yang terkini, mencakup sistem basis data, sistem informasi manajemen, analisis dan pengembangan sistem, manajemen proyek sistem informasi, programming, mobile information system, dan topik lainnya terkait Sistem Informasi. Jurnal ULTIMA InfoSys terbit secara berkala dua kali dalam setahun (Juni dan Desember) dan dikelola oleh Program Studi Sistem Informasi Universitas Multimedia Nusantara bekerjasama dengan UMN Press.
Arjuna Subject : -
Articles 220 Documents
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Sentiment Analysis of User Satisfaction Towards Sales Promotion of Gojek Application Service Using Support Vector Machine (SVM) Haryani, Calandra Alencia; Widjaja, Andree E.; Hery, Hery; Ferdinand, Ferry Vincenttius
ULTIMA InfoSys Vol 14 No 2 (2023): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v14i2.3398

Abstract

Customer satisfaction is a crucial factor for the sustainability of a company, including tech companies like Gojek. This condition exists because customer satisfaction affects the continuation of customers purchasing or reusing the company's services. Promotions or offers are commonly applied strategies by companies to enhance attractiveness among competitors and improve customer satisfaction. Therefore, this research aims to understand customer sentiments towards promotions or offers provided by the Gojek company to develop better promotional strategies by increasing customer satisfaction. The data source for this research comes from user tweets on the social media platform Twitter which has now changed to "X". The method used to determine the sentiment of this data is the support vector machine.
VALUATION OF STOCK VALUE WITH RELATIVE VALUATION AND ABSOLUTE VALUATION APPROACH IN BANKING SECTOR AT LQ 45 PERIOD 2015-2020 Ferdinand, Ferry Vincenttius; Hulu, Edison; Ugut, Gracia Shinta S.; Sembel, Roy
ULTIMA InfoSys Vol 15 No 1 (2024): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i1.3410

Abstract

Investment in Indonesia during the COVID-19 pandemic increased. One of the significant and good indices in describing the condition of stocks in Indonesia is LQ45. Dlaam LQ45 The largest market capitalists are held by the financial sector Specifically the bank subsector therefore it needs to be further researched regarding these stocks. One of the interesting things is whether these stocks deserve to be considered a good investment instrument. One of the efforts to assess investment instruments is through the valuation stage. The valuation method used there are two, namely relative valuation with price to book value benchmarks and price earnings ratio and absolute valuation with dividend growth model method and some modifications of the model. From the results obtained, the recommendation of the position of the four financial stocks in LQ45 varies depending on the valuation technique used. On this basis, it can be said that it is important to know, know, and ethically the valuation techniques used are appropriate, good, and correct.
From Tradition to Innovation: Mind Map Generation in Higher Education Mitra, Aditya Rama; Samosir, Feliks Victor Parningotan; Hudi, Robertus; Tarigan, Riswan Effendi
ULTIMA InfoSys Vol 14 No 2 (2023): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v14i2.3432

Abstract

In higher education, effectively delivering complex topics to students with diverse learning preferences remains a pressing challenge. This comprehensive survey delves into the utilization of mind maps as an innovative instructional tool to navigate this challenge. From 2003 to 2022, we review the implementation of mind maps in higher education, highlighting aspects such as the year of the paper, the techniques employed for mind mapping, target audiences, objectives, and outcomes. Mind maps, centralized and radial visual techniques, have been recognized for their capacity to enhance memory retention, comprehension, and active student engagement. We identify two primary scenarios: Learner-Driven and Lecturer-Driven Development. While students employ mind maps for revision and understanding, lecturers utilize them as visual aids to structure content and elucidate intricate relationships. The paper underscores the need for inclusivity, accommodating varied learning styles, and integrating mind maps into a broader educational toolkit. Through this study, we uncover research gaps and propose future avenues to further amplify the potential of mind maps in academia.
Image Splicing Forgery Detection using Error Level Analysis and CNN Irmawati, Irmawati
ULTIMA InfoSys Vol 14 No 2 (2023): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v14i2.3439

Abstract

The issue of image forgery through splicing has become increasingly relevant in the current digital era. Splicing involves the manipulation of images by combining parts of two or more different images to create a deceptive composite image. This technique can be employed for various purposes, including the dissemination of false information, damaging someone's reputation, or even creating confusion in specific contexts. Several techniques used to detect splicing involve statistical analysis, color analysis, and texture analysis. Additionally, artificial intelligence developments, such as deep learning, have been applied to enhance detection capabilities. In this study, we employed a Convolutional Neural Network (CNN) model to identify image deviations caused by splicing. Optimization was performed on the convolutional layers of the model to improve CNN performance. The integration of Error Level Analysis (ELA) was also implemented to aid in identifying splicing forgeries, where portions of one image are combined with parts of another. Areas that have undergone splicing may exhibit noticeable differences in error levels. The dataset utilized for this research was sourced from DVMM and CUISDE. The validation accuracy results for our CNN model before incorporating ELA were 61% for DVMM and 74% for CUISDE. After adding ELA, the CNN model demonstrated improved detection accuracy, achieving validation rates of 72% for DVMM and 71% for CUISDE.
Developing a Web-Based Information System to Enhance Operations in Hajj and Umrah Travel (Case Study: PT. Mutiara Cinta Imani) Rosalina, Rosalina; Syahir, Muhammad
ULTIMA InfoSys Vol 14 No 2 (2023): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v14i2.3443

Abstract

This research addresses the substantial challenges arising from the prolonged reliance on manual inputting methods, notably paper and Excel, within the operational framework of PT. Mutiara Cinta Imani in the context of Hajj and Umrah travel. The inherent inefficiencies, potential errors, and constraints associated with traditional data management practices have prompted a critical examination of the existing system. Recognizing the imperative for a more contemporary approach, this study focuses on the development and implementation of a Web-Based Information System. The primary goal is to enhance operational efficiency, mitigate errors, and overcome the limitations inherent in manual data management. By conducting a case study on PT. Mutiara Cinta Imani, this research seeks to provide a comprehensive understanding of the challenges faced and propose a technologically advanced solution to optimize data input processes. The envisioned Web-Based Information System aims to revolutionize operations, offering real-time access, scalability, and increased reliability, thereby paving the way for improved practices in the Hajj and Umrah travel domain
A Bibliometric Analysis of The Term DataOps Nugroho, Antonius Sony Eko; Wella, Wella
ULTIMA InfoSys Vol 15 No 1 (2024): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i1.3450

Abstract

This paper aims to analyze research trends of the term DataOps scientifically through bibliometric studies. Initial data were collected from Scopus database from 2018 to 2023 which resulted 34 documents, while in other hands we found more than 1000 documents in the Google Scholar database collected using Publish or Perish. Five years of data is collected because the scientific publications on term DataOps started to increase since 2018. We have deployed ``bibliometrix 3.0'', the r-package, and VOSviewer to analyze key literature aspects. Since the rise of the term DataOps, significant contribution to its definition and practical applications can be observed. DataOps enthusiasts collaborate to create a common principle for uniformly applying the methodology in the various data operation environments. DataOps will continue to evolve into an effective and reliable data management system. The findings in this study will help related researchers recognize the research trends of topics in DataOps research globally and suggest future research directions.
Enhance the User Interface Design of the booking application at Rana Photo Studio by applying the User-Centered Design (UCD) method Nuria, Putri; Septiana E.P, Ellyv; Safitri, Ayin Dewi; Solehatin, Solehatin
ULTIMA InfoSys Vol 15 No 1 (2024): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i1.3463

Abstract

The goal of this research is to create an interface design for a photo studio booking application. The User Centered Design (UCD) method will be used to prioritize the user interface and user experience. The success of the UI/UX design will be validated by involving users directly throughout the development cycle using UCD principles. This will include collecting feedback and continuously improving the design based on user input. The research conducted in this study involved the User Created Design method, which utilized an interactive user interface to enable easy booking of studios with a convenient and efficient booking system for customers to use anywhere and anytime. Online booking overcomes the challenge of scheduling difficulties. The information system is treated with accuracy and appropriateness to ensure direct user accessibility. The research was conducted in three stages, starting with the initial stage of data collection and literature study, followed by the UCD Method Development stage, where the method was developed and solutions to early-stage problems were sought. The final stage included a decision-making process based on the conclusions drawn from the insights of five audiences. Through the application of the User Centered Design method, this research has successfully developed a UI/UX design that meticulously takes into account the users' needs during the studio photo booking process. The evaluation results derived from user feedback has increased the system's effectiveness, provided an intuitive and delightful user experience, and ensured optimal user engagement throughout the entire ordering journey. Based on the evaluation results of user responses, it can be concluded that the system has been successful in providing an intuitive and satisfying experience. Users have given positive feedback regarding the effectiveness of the user interface (UI) and user experience (UX), which indicates significant improvements in system navigation and the ease of the ordering process. A deep understanding of user needs, along with continuous iteration based on feedback, has resulted in a positive experience and ensured a high level of satisfaction with the use of this studio photo booking system. Keywords: Information System, UI/UX, User-Centered Design (UCD), Online Booking.
Measurement of Information Technology Management Capability Using COBIT 5.0 in The Facility Management Department of PT Permata Graha Nusantara Chui, Alexander Alvin; Wella, Wella
ULTIMA InfoSys Vol 15 No 1 (2024): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i1.3473

Abstract

IT governance is the responsibility of the board of directors and executive management of a company that ensures the company information technology supports and expands the company strategy and objectives. But IT governance that does not support departments can have a negative or detrimental impact on the department. For this reason, it is necessary to take measurements to see the level of IT governance that is currently being implemented. The Facility Management Department is a department of PT Permata Graha Nusantara which is engaged in building management services that wants to see whether the ongoing IT system provides support to operational activities and provides better services to customers. To measure the capability of IT governance, the COBIT 5.0 framework is used as a reference in this study. Domain selection is done according to COBIT 5.0 standard and on the selection of the department 5 domains are tested, namely APO05 Manage Portfolios, APO10 Manage Suppliers, APO11 Manage Quality, BAI04 Manage Availability and Capacity, and DSS03 Manage Problems. Each domain chosen to have different aims and objectives and measured using standards set by the COBIT 5.0 framework. The measurement results are Capability Level which has levels from level 0 to 5. The target expected by the Facility Management department is level 4, but the results obtained are not in line with expectations and get level 3 in each domain tested, so this department must make improvements based on recommendations made based on the COBIT 5.0 framework.
Evaluating IT Capabilities in The Success of Pipe Manufacturing Company Holman, Jason Nathanael; Desanti, Ririn Ikana
ULTIMA InfoSys Vol 15 No 1 (2024): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i1.3475

Abstract

Information technology (IT) management is a process that a corporation or organization must carry out, particularly in terms of data management. The research employs a case study of a pipe manufacturer that has implemented a human resources system to manage employee information. To avoid problems in the data management process that can impede company performance, the company must have good information technology governance capabilities in the data management process. This research will focus on measuring and evaluating the capability of information technology governance at the company, as well as making recommendations to improve the company's existing IT governance. The COBIT 2019 framework will be used to assess the company's IT governance capabilities using qualitative data collected from collaborative interviews with the company and supported by previous research literature. The measurement focus will be on IT infrastructure for data management and operations management to support the data management process. APO01 - Managed I&T Management Framework, APO14 - Managed Data, and DSS01 - Managed Operations are the COBIT 2019 processes to be monitored. The study's findings include the realization of IT governance capabilities in the APO01 domain and a lack of IT governance capabilities in the other two domains, namely APO14 and DSS01. The capability level is stopped at level 2 for the APO14 and DSS01 domains, which is one level below the declared aim of level 3. The recommendations will center on enhancing the IT governance skills of the two domains that fail to meet the company's capability targets.
Stakeholder Analysis Using The Vectorized Salience Model, Enhanced Power-Interest Grid, And Stakeholder Cube Diagrams Sarungu, Cornelius Mellino
ULTIMA InfoSys Vol 15 No 1 (2024): Ultima Infosys : Jurnal Ilmu Sistem Informasi
Publisher : Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/si.v15i1.3483

Abstract

Abstract—Stakeholders are parties affected by a project, with both positive and negative impacts. In a project, the expectations of these stakeholders must be managed properly, and a project manager plays an important role in satisfying and balancing the interests that exist between them. The stakeholder analysis process needs to be carried out in detail. It must also be supported by the right tools so that it can reveal new insights that may have been hidden behind the stakeholder data. In this research, two techniques are proposed to increase the acuity of two tools that are often used in the stakeholder analysis process, namely the salience diagram and the power grid diagram. Improvements were made by using vectorization techniques for salience diagrams and applying Gartner's magic quadrant method to power grid diagrams. Both improvements can show more clearly the position of stakeholders in the categorization formed according to the two tools. Of course, this will further assist the project team in determining the right strategy for each stakeholder so that all elements support the project’s success.

Page 18 of 22 | Total Record : 220

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