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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 87 Documents
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Search results for , issue "Vol. 1 No. 2 (2010): ComTech" : 87 Documents clear
Pemanfaatan Web Application Dalam Peningkatan Efisiensi dan Efektifitas Kerja Administrasi (Studi Kasus: Pemesanan dan Pembuatan Surat Keterangan) Reina Reina
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2568

Abstract

The purpose of this study was to determine the extent to which the use of a web application to improve efficiency and effectiveness of administrative work. The research method used consisted of the analysis phase, study libraries to support application design and data collection based on observations. Results of evaluation and observation data before and after implementation of the system showed that the use of a web application to improve efficiency and effectiveness of administrative work, e.g. by decreasing the length of time the making of letter, an increase in the percentage of the making of timeliness, accuracy of data validation and provide facilities for students in order letter as well as convenience for staff in the making of letter. Another thing is the ease in monitoring the accuracy of the making of letter. 
Pengenalan Citra Wajah Dengan Menggunakan Transformasi Wavelet Diskrit dan Jaringan Saraf Tiruan Back-Propagation Suhendry Effendy
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2569

Abstract

This paper discusses the facial image recognition system using Discrete Wavelet Transform and back-propagation artificial neural network. Discrete Wavelet Transform processes the input image to obtain the essential features found on the face image. These features are then classified using an back-propagation artificial neural network for the input image to be identified. Testing the system using facial images in AT & T Database of Faces of 400 images comprising 40 facial images of individuals and web-camera catches as many as 100 images of 10 individuals. The accuracy of level of recognition on AT & T Database of Faces reaches 93.5%, while the accuracy of level of recognition on a web-camera capture images up to 96%. Testing is also done on image of AT & T Database of Faces with given noise. Apparently the noise in the image does not give meaningful effect on the level of recognition accuracy. 
Analisis dan Perancangan Sistem Basis Data Pembelian, Penjualan, dan Persediaan Pada PT Interjaya Surya Megah Andry Chowanda
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2570

Abstract

The purpose of this paper is to analyze the system of sales, purchases, and inventory of goods at PT Surya Megah Interjaya and designing the database of sales, purchases, and inventories of goods in accordance with the needs of the company, and to design a prototype application. The methodology used to collect information is by fact-finding technique, which conducted a survey, conducting interviews on related parties, and performed an analysis of procedures and corporate documents. As for database design using the methodology of database-life-cycle, which consists of 3 stages, namely: conceptual, logical, and physical database design. Research conducted, resulting conceptual database design, logical, and physical for business processes of sales, purchases, and inventories of goods. A prototype application is developed to build a working model of a database application that allows the designer or user to ensure the final system will be visible and functioning. With the database design and application development, information needs are met quickly and accurately. 
Simulasi Penggunaan Ipv6 Pada PD. Pumas Jaya Menggunakan Metode Manual Tunneling Elidjen Elidjen; Shellyana Tanun; Budi Santoso; Cipto Citronegoro
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2571

Abstract

Internet usage trends with IPv4 addresses that only have 32-bit addresses could no longer cope with the large allocation of the required addresses. Internet Engineering Task Force (IETF) has issued a new standard of Internet protocol called IPv6 to anticipate this problem. PD. Pumas Jaya, which started in 1996 in the field of marine products in particular marinated seafood, such as salted fish, rebon shrimp, cuttlefish, anchovies and other marine products to anticipate the need for this in its network. However, IPv6 can not simply be used to replace IPv4 as the existing network infrastructure with IPv4. This research discussed IPv6 simulation tunneling with manual methods so that an IPv6 site can communicate with other IPv6 site even if separated by an infrastructure that supports only IPv4. 
Analisis dan Perancangan Sistem Interactive Voice Response (IVR) Berbasis Openvxi Menggunakan Asterisk Pada Hotel Sahid Jaya Johan Muliadi Kerta; Wike Apryanto Jufri; Alexander Aryo Nugroho; Andreas Kurniawan
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2573

Abstract

The purpose of this study is to provide a deep understanding of technology of IVR (Interactive Voice Recognition) in OpenVXI based network using Asterisk, that help Sahid Jaya hotel to streamline communication with the guests, improving service and employee effectiveness. The methodology used is analysis which is through surveys, observation and interviews with the company and the design method by designing system from the existing needs analysis. The results obtained from this research is Communication System based in IVR OpenVXI can be applied to existing VoIP network, without disrupting the existing network. Some existing services can be supported with this system usage. Conclusions can be drawn is the use of IVR in the network using VoIP technology is the best solution to overcome the problems and needs of the hospitality which one of these is limited information guest cna get that can provided by non-operators and for support service improvement. 
Analisa dan Perancangan Jaringan Berbasis VPN Pada PT. Finroll Johan Muliadi Kerta; David Wennoris; Tonny Gunawan; Erny Erny
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2576

Abstract

Along with the development of the company to run operations such as data communication and perform other transactions to relations and vice versa, PT Finroll just uses the public network such as sending email to their partners. Data information is not safe in public because it can be tapped or intercepted by unauthorized person. With the Virtual Private Network (VPN), PT Finroll can do business in secure environment to their partners. The methodologies used in this research are data collection that was started by surveying, interviewing, and analyzing the current network topology, performance and design requirements that support network design. From these results, PT Finroll can increase productivity and performance from competition in their business. In addition, with this research company has a better ability to increase their competitiveness in present and the future. 
Prototipe Kompresi Lossless Audio Codec Menggunakan Entropy Encoding Andreas Soegandi
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2579

Abstract

The purpose of this study was to perform lossless compression on the uncompress audio file audio to minimize file size without reducing the quality. The application is developed using the entropy encoding compression method with rice coding technique. For the result, the compression ratio is good enough and easy to be developed because the algorithm is quite simple. 
Pemanfaatan Augmented Reality Dalam Memvisualisasikan Produk Perumahan Melalui Internet Bonny A Suryawinata
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2583

Abstract

To attract house buyers, many ways is done by the developers to promote their products, such as by using multiple marketing medias namely television, radio, internet, newspapers or distribute flyers during the exhibition. It is not uncommon that the said use of multiple media elements still make prospective buyers feel confused, because they can not imagine the shape of the house, since all they see is a flat two dimensional (2D) object. To obtain detailed product information house of course they have to visit the exhibition or housing sales office that would spend the time and cost. This is why the authors proposed an application that can display 3D images over the Internet by using Augmented Reality technology, so that prospective home buyers can access these applications anytime and anywhere. 
Meningkatkan Kualitas Blended Learning: Case Study Menggunakan CoI Model Lydiawati Kosasih Asalla
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2585

Abstract

This article discusses several considerations in the education industry to achieve good quality learning by using advances in technology such as blended learning, and it uses the Community of Inquiry model as a comparison to raise quality of the blending learning program. Other aspects include on how to raise quality of a discussion as an improvement of knowledge management. 
Analisis E-Bisnis Terhadap Amazon dan Aquarelle Evawaty Tanuar; Agustinna Yosanny
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2589

Abstract

The internet and digital world is one thing that needs to be taken into account by the Company. Business through Internet, known as e-business, is another way to increase the relation between company and customers or prospective customers. Analysis from the view point of customers and the integration of technologies was conducted on 2 examples sites that well known in doing online business but have different history on how it started the e-commerce. They are Amazon and Aquarelle. By comparing the two sites, the characteristics of e-commerce sites could be studied. As a result, there are striking differences between these two sites, where Amazon is more oriented to sales, while Aquarelle more on customer-oriented impact to the design and implementation of their e-business. 

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