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ComTech: Computer, Mathematics and Engineering Applications
Published by Universitas Bina Nusantara
ISSN : 20871244     EISSN : 2476907X     DOI : -
Core Subject : Science, Education, Engineering,
Computer Science & IT Engineering Mathematics
The journal invites professionals in the world of education, research, and entrepreneurship to participate in disseminating ideas, concepts, new theories, or science development in the field of Information Systems, Architecture, Civil Engineering, Computer Engineering, Industrial Engineering, Food Technology, Computer Science, Mathematics, and Statistics through this scientific journal.
Arjuna Subject : -
Articles 72 Documents
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Search results for , issue "Vol 3, No 1 (2012): ComTech" : 72 Documents clear
Penerapan Metode GOMS untuk Evaluasi Perangkat Lunak Pemodelan Visual Berbasis Open Source Pangestu, Harijanto
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2418

Abstract

Software evaluation is needed to determine the usability level of the software. Good usability is having the following characteristics: effective to use (effectiveness), efficient to use (efficiency), safe to use (safety), having good utility (utility), easy to learn (learnability) and easy to remember how to use (memorability). Analytical evaluation is one evaluation approach that does not involve users. The evaluation is conducted by experts associated with the product. One method used in the analytical evaluation is GOMS, a method to analyze a task related to human computer interaction. GOMS does not provide accurate calculation of how users interact with the system, yet it estimates the time need to do a task dealing with the system. With the evaluation of UML users are expected to be able to use UML tools that appropriate to particular needs based on open source.
Perancangan dan Implementasi Aplikasi Internet Radio Menggunakan Multimedia Database Melalui Penerapan Ontology dan Metadata Erwansyah, M. Rudy; Setiawan, Ong Budi; Abbas, Bahtiar S.
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2454

Abstract

The study aims to analyze, design and implement the internet radio application used in managing the audio data on Heartline FM radio station. In this application, the audio data which has been managed can be used in a radio broadcast scheduling. The scheduled radio broadcast is then forwarded to the webcast server to be transmitted through the Internet. This research carries out analysis, design and implementation using Object Oriented Analysis and Design method and Lean Architecture for Agile Software Development. The program component design consists of: (1) software functional system, (2) user interface, (3) problem domain model, which in internet radio application is divided into five subcomponents, namely: audio-indexing-retrieval, scheduling, reporting, user and ontology. In the implementation of internet application of this radio, the audio data management uses multimedia database by applying metadata and ontology, so that the process of indexing and retrieval can be reused quickly on the broadcast. This application can also be used in carrying out the radio broadcast automatically during specified hours. This internet radio application has been able to meet the needs of radio Heartline.
Pengembangan Media Destinasi Pariwisata: Memanfaatkan Potensi dan Sumber Daya Lokal di Era Otonomi dan Pemekaran Daerah Hulu, Yosafati
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2445

Abstract

Concerning about: (1) an increase in regional demand (government and community) in developing tourism destinations in the era of autonomy and separation, (2) the needs of tourists to choose the right attraction in accordance with their respective criteria, and (3) the needs of employers to offer sights of interest in accordance with the needs of potential tourists, a media is needed to be developed that can facilitate those needs. It is a web-based software system that can store and show tourist destinations of Indonesia in a comprehensive, systematic, and structured way. Besides, it can classify the various attractions based on attributes, such as: location (name of the island, province, district), tourism type/product, how to go to thoseobjects, cost, and also another variety of informal information, such as: the ins and outs of the attraction area posted by the local community or travel experiences posted by tourists. The first phase will focus on a database system that enables local governments and local communities retain information attractions and products systematically and structurally so that potential tourists can find them easily through a simple search method. The database system is then a basis og other information that will be built on further research needs such as:Data Warehouse System, Decision Support System, and Expert System for Indonesia's tourism industry.
Kajian Komposisi Sebagai Dasar Pemahaman Bentuk pada Komputasi Perancangan Arsitektur Tomasowa, Riva
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2377

Abstract

Composition and CAAD are closely related to structure logic. Composition is built by numbers which are also the language of CAAD frame algorithm. This bond provides the opportunity and privilege to help map the composition of CAAD into concrete manifestation. This paper examines both the composition of the basicconcepts introduced to students and the application to the computerized design. Awareness of students as designers is reviewed towards the tools and their potential availability in the case of form composition from the basic field. The specialty of this tool is able to redefine the creativity path to be logical and measurable. This opportunity provides acceleration towards form searching and balanced expression according to the designer?s interpretation. The user?s ability to optimize the modeling tool helps start the formation of the basic ideas. Starting from digital sketch, it gives room for the evolution and development of a vast alternative design.
Implementasi dan Evaluasi Penerapan Globus Toolkit untuk Aplikasi Grid Computing Budiharto, Widodo
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2469

Abstract

Grid computing is a distributed computing technology that utilizes resources connected through a free computer network, yet coordinated with a specific mechanism. The development of grid computing infrastructure is not easy because it takes skill and experience in the installation and configuration of both Linux-based and open source program. In this study, the author built a grid computing infrastructure based on Debian 4, and used Globus Toolkit 4.1.2 on three computers. The WSRF technology was tried to run as an indication that the grid infrastructure has been successfully built. Based on some experiments in this study, grid computing can run well on the three computers with a user interface of web-based grid system using the UCLA Grid Portal. Overall the system runs fine, but it requires high experiences and comprehensions upon the Linux operating systems as well as computer networks in the installation process.
Pengaruh Persepsi Kualitas Layanan Pelanggan dan Sistem Informasi terhadap Kinerja Organisasi Bidang Jasa Zulkarnain, Novan
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2423

Abstract

Performance brings important influence to the company?s competition level to survive in free trade. Many companies started to reorganize the company's strategy to review the company's strategic objectives. Along with the development of science and technology, performance factors cannot be separated from improving service quality and information systems. The studied company is engaged in educational services and located in Tangerang. The research data was obtained through a questionnaire with 81 questions. 30 respondents were obtained by simple random sampling method. The Data from the questionnaire is used to determine the influence of the perception of customer service quality (X1) and information systems(X2) towards the performance of the organization(Y). The dimensional measurement uses SERVQUAL theory, which is tangible, reliability, responsiveness, assurance and empathy. The result shows that the equality of services and information systems in an organization influence its performance.
Pengembangan Basis Data Penjualan, Persediaan dan Logistic Tracking: Studi Kasus PT Abhimata Citra Abadi Ayuliana, Ayuliana; Putri, Nadya Permata; Pranoto, Araminta; Novembry, Ronald
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2459

Abstract

This study aims at designing a database system processes sales, inventory, and goods tracking in accordance with the needs of PT Citra Abadi Abhimata, as well as building the application program. This system records each process in a flow of goods, ranging from the entry of the principal goods until the goods are sold to end customers plus goods tracking. This study uses the fact finding method carried out by a direct field study at the company concerned, interviews with relevant parties, studying the company?s documentation, and literary study of textbooks. Furthermore, database design uses the three design concepts (conceptual design, logical design and physical design), as well as the interface design to create the application program. The result obtained is a data base system and application that can improve the company?s performance since data is stored on a regular basis so that it can be easily obtained when needed. The existence of this database design, along with related application, makes the company easier to manage data and monitor the process of goods flow and produce better work.
Perancangan Sistem Informasi Penjualan pada Perusahaan Jasa Service Provider Christian, Lianawati; Urfan, Mulfasli
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2391

Abstract

Along with the development of technology, every line of business as well as services needs information systems to support the company operations. This research is objected to analyze, identify information needs, repair and design accounting information system of service sales required by the management to support decision making and address the issues in the running system on a service company. Several methods were carried out on this research, such as data collection and information; analyses on the running system; analyses of research findings;, identification of information needs, and identification of system requirements, as well as object-oriented design methods, namely the problem domain analysis, application domain analysis, architecture design and component diagram. The results obtained in the form of improvements in the running system which was an application that informs the design of document numbering, filing, and reports. The accounting information system of service sales at the studied company produced needed reports timely, completely and accurately that can be utilized by the management in decision-making.
Identification of Architectural Functions in A Four-Dimensional Space Utama, Firza; Daryanto, Daryanto
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2382

Abstract

This research has explored the possibilities and concept of architectural space in a virtual environment. The virtual environment exists as a different concept, and challenges the constraints of the physical world. One of the possibilities in a virtual environment is that it is able to extend the spatial dimension higher than the physical three-dimension. To take the advantage of this possibility, this research has applied some geometrical four-dimensional (4D) methods to define virtual architectural space. The spatial characteristics of 4D space is established by analyzing the four-dimensional structure that can be comprehended by human participant for its spatial quality, and by developing a system to control the fourth axis of movement. Multiple three-dimensional spaces that fluidly change their volume have been defined as one of the possibilities of virtual architecturalspace concept in order to enrich our understanding of virtual spatial experience.
Jendela Hemat Energi pada Fasade Rumah Susun di Jakarta Daryanto, Daryanto; S., Firza Utama
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 1 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i1.2364

Abstract

Window is one of building components that is directly related to lighting and ventilation. Currently a lot of vertical housings pay less attention to the design of energy-efficient windows. This study aims to find energy efficient windows that are applicable to vertical housing. Surveys on some vertical housings in Jakarta was conducted and environmental simulation programs using CFD and Ecotect was used to explore and analyze the performance of windows for natural lighting and ventilation and further developing of energy efficient windows. The result showed that the Jalousie windows mounted on the center of wall facing out and two louvers above the entrance and upperside of walls in the opposite side of rooms, combined with openings at the bottom of doors are able to create optimum cross ventilation. The resulted wind speed within the range of 0.15 to 0.12 m/s is enough to make comfortable air flow effect, and the average natural lighting of 200 lux is adequate forresidential activity.

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