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Marlindia Ike Sari, S.T., M.T.
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International Journal of Applied Information Technology (IJAIT) Fakultas Ilmu Terapan Universitas Telkom; Gd. Selaru Lt. 3 - Jl. Telekomunikasi No. 1 Bandung
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IJAIT (International Journal of Applied Information Technology)
Published by Universitas Telkom
ISSN : -     EISSN : 25811223     DOI : https://doi.org/10.25124/ijait
Core Subject : Science,
Computer Science & IT
International Journal of Applied Information Technology covers a broad range of research topics in information technology. The topics include, but are not limited to avionics, bio medical instrumentation, biometric, computer network design, cryptography, data compression, digital signal processing, embedded system, enterprise information system, green energy & computing, interactive programming, internet of things, IT management and governance, IT-business strategic alignment, mobile and ubiquitous computing, monitoring system and techniques, multimedia processing, network security, power electronics, remote monitoring and sensing device, robotics and avionics, signal processing circuits, smart cities and smart grids, telecommunication devices & methods, telecommunication fundamentals.
Arjuna Subject : Ilmu Komputer (semua kategori) - Aplikasi Ilmu Komputer
Articles 6 Documents
 1 
Search results for , issue "Vol 4 No 01 (2020)" : 6 Documents clear
Survey Paper on User-Centric Service Composition Henry Rossi Andrian; Wardani Muhamad
IJAIT (International Journal of Applied Information Technology) Vol 4 No 01 (2020)
Publisher : School of Applied Science, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/ijait.v4i01.3213

Abstract

Service composition combines several services to complete more complex tasks and get increased service value. The service user determines the task be completed. Several standards have been presented to support the composition of services, including BPEL and WSCDL. However, existing standards can only be used or operated by IT professionals who understand software design and development well. The number of end-users who do not have specific skills is far greater than that of IT professionals. Therefore, to improve service composition capabilities, end-users must be given the opportunity to interact directly with the service composition system to obtain the new services they need. To create a user-centered service composition, some general needs must be met, namely: making it easier for users to obtain appropriate services, guaranteeing the fulfillment of Quality of Service (QoS), and visualizing composite services that are generated instantly. The resulting services meet external requirements submitted directly by users and pay attention to user preferences as internal (implicit) requirements. This paper presents various studies that have been produced to support the composition of user-centered services and problems that are still open as to research challenges in the future. This study's results are exspected to help service composition platform developers understand the various approaches to developing user-centered service composition.
Design and Realization of Wideband Printed Monopole Antenna with Tel-U Logo Patch Macho Revelino Siahaan; Levy Olivia Nur; Radial Anwar
IJAIT (International Journal of Applied Information Technology) Vol 4 No 01 (2020)
Publisher : School of Applied Science, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/ijait.v4i01.2905

Abstract

One of the challenges of antenna development for wireless communication systems is to create an antenna that can be operated in wide frequency so that a single antenna can be used in various wireless communication technologies. This paper discussed the wideband antenna with Telkom University Logo-shaped patch, using Fr-4 (?r = 4.3) substrate with 1.6 mm thickness. The antenna can be operated in the frequency range of 760 MHz – 13.75 GHz. The gain performance at the working frequency is still above 0 dBi. Hence, the antenna design to work properly for wireless communication systems which require relatively long distances. The Defected Ground Substrate (DGS) method is applied to achieve that bandwidth. Measurement shows the logo-shaped patch antenna achieves 12.994 GHz bandwidth with 1.33 VSWR and gain 2.85 at 921.5 MHz frequency.
Sign Language Recognition using Principal Component Analysis and Support Vector Machine Astri Novianty; Fairuz Azmi
IJAIT (International Journal of Applied Information Technology) Vol 4 No 01 (2020)
Publisher : School of Applied Science, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/ijait.v4i01.3015

Abstract

The World Health Organization (WHO) estimates that over five percent of the world's population are hearing-impaired. One of the communication problems that often arise between deaf or speech impaired with normal people is the low level of knowledge and understanding of the deaf or speech impaired's normal sign language in their daily communication. To overcome this problem, we build a sign language recognition system, especially for the Indonesian language. The sign language system for Bahasa Indonesia, called Bisindo, is unique from the others. Our work utilizes two image processing algorithms for the pre-processing, namely the grayscale conversion and the histogram equalization. Subsequently, the principal component analysis (PCA) is employed for dimensional reduction and feature extraction. Finally, the support vector machine (SVM) is applied as the classifier. Results indicate that the use of the histogram equalization significantly enhances the accuracy of the recognition. Comprehensive experiments by applying different random seeds for testing data confirm that our method achieves 76.8% accuracy. Accordingly, a more robust method is still open to enhance the accuracy in sign language recognition.
Analysis and Evaluation of User Acceptance on the Use of Enterprise Resource Planning (ERP) Systems at PT Trisco Tailored Apparel Manufacturing Alma Syafira; Warih Puspitasari; Wahjoe Witjaksono
IJAIT (International Journal of Applied Information Technology) Vol 4 No 01 (2020)
Publisher : School of Applied Science, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/ijait.v4i01.2852

Abstract

Enterprise Resource Planning is a system that connects business areas, which benefits companies by increasing productivity, reducing costs, and simplifying business processes. However, it also found a case that considers the use of ERP systems to fail. Therefore, the use of ERP systems needs to be optimized, one of which is in terms of users. This research will be analyzed and evaluated the factors that influence user acceptance using the TAM2 model. The variables used are 11 variables in TAM2, including moderator variables. This research was conducted at PT Trisco Tailored Apparel Manufacturing, with a sample of 43 and an online questionnaire as a data collection method. Data processing using SmartPLS. The analysis conducted in the analysis of inner models such as validity and reliability tests, and analysis of inner models such as the coefficient of determination and path coefficient. The final step is testing the hypothesis with the bootstrapping method. The results obtained are the most significant factor is the image of the perceived usefulness, then the perceived usefulness of the intention to use the system. It has also found that if the system were mandatory, voluntariness would not be significant. Therefore, the results of this study can use as a source of evaluation for the company.
Building Private Blockchain For Recording Student Values Data in Environment Faculty of Engineering at Universitas Muhammadiyah, Ponorogo Aslan Alwi; Moh. Bhanu Setyawan; Munirah Munirah
IJAIT (International Journal of Applied Information Technology) Vol 4 No 01 (2020)
Publisher : School of Applied Science, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/ijait.v4i01.3122

Abstract

Storing student grades in universities is a sensitive issue when it comes to the security of campus computer networks. In this paper, we propose a blockchain model to ensure the secure storage of student grade data. Each record of recording student grades by a lecturer can be seen as a record in a journal or ledger. All records in one of the departments in a faculty can be seen as a student grade journal. Modeling this data by viewing data records as a journal allows us to model a database for all records in an encrypted and distributed manner. Namely, a model that resembles the blockchain model. In this perspective, a blockchain network can be made in which each node is stored in a different direction. So if there are three departments within the faculty, a blockchain with three vertices can be made. Each node keeps a copy of the overall student grade journal data. So that each node can mutually verify the validity of transaction records in each department. Student value journals are structured in such a way that they form a blockchain that builds hashes that lock together. This modeling of student value records answers the problem of being vulnerable to student scores hacked by irresponsible parties both from within the campus and from outside the campus. Security follows the protocols in the blockchain architecture.
Android Mobile Application for Promotion of Pangandaran Leading Tourism in Augmented Reality Technology Ady Purna Kurniawan; Vany Octaviany; Danica Rani Intani Putri; Budi Ikhsan; Dimas Adianto
IJAIT (International Journal of Applied Information Technology) Vol 4 No 01 (2020)
Publisher : School of Applied Science, Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/ijait.v4i01.2523

Abstract

The use of smartphone devices has become a part of people's lives in finding the information they need, including finding tourist locations that suit their desires. The problem is when tourism site managers cannot keep up with technological developments needed by the community, where most still use conventional paper media marketing methods such as brochures and travel pocketbooks. Therefore, the development of tourism promotion applications is needed to support the marketing of tourist destinations such as in Pangandaran, West Java. This application's development uses the Prototype method, which only focuses on functionality needs, which uses video media that is displayed with Augmented Reality technology. The results of the development of this application can only display 7 (seven) superior tourism location videos in Pangandaran, West Java.

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