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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 37 Documents
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Search results for , issue " Vol 4, No 1 (2013): ComTech" : 37 Documents clear
Perancangan Data Warehouse dan Penerapan Teknik Clustering Spatial pada Wesel: Studi Kasus PT XXX Hartadi, Arief Dwi; Juwita, Oktalia
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2704

Abstract

By setting up the right service and product for the customer, the company may increase its marketing effectiveness as well as sales. For that purpose, information on company’s product and sales is highly needed in order to help on decision making process, which expectedly enables company to create value and eventually gain competitive advantage. This research attempts to develop a Data warehouse for PT XXX, which is expected to exhibit useful information for the company without disturbing its operational system. The Data warehouse is developed with Oracle 11g. Apart from that, this research also aims to gather information and knowledge with spatial database. The data mining is conducted by using WEKA application, which compares the algorithm of DBSCAN, K-Means, and EM clustering. Data mining from the spatial data is expected to create area map which indicates sales rate of PT Pos Indonesia’s products. Through this it is hoped that the company may focus more in marketing certain product with particular advantage in one particular area to produce effectiveness. The research outcome indicates that the Data warehouse being developed has already managed to exhibit the receipt report of postal money order (wesel pos), retail stock, as well as retail sales. 
Pilihan Metode Manajemen Proyek dan Pengembangan Aplikasi pada Perusahaan Pemula Pengembang Perangkat Lunak di Jakarta Hudiarto, Hudiarto
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2740

Abstract

The ability of Indonesian computer practitioners in making business applications programs which are both internet-based and non-internet-based is already satisfactory. Their work can be viewed from a variety of business applications commissioned by many local, national and international levels. The problem often encountered is the lack of project management at the company maker of project business applications. It may affect the availability of adequate documentation as part of the project output. In this paper the author recommends software developing using a concept by McConnell (1996) that depends on the project’s characteristics and scope. McConnell is one of the mainstays of Microsoft experts who experiences many years as a project leader software made by the company. The object of this paper is to study several beginner companies of software developer in Jakarta. The software coverage is especially for profit company and both internet-based and non internet-based applications. From a comparison of several projects it is found that that late delivery often occur since the methid is implemented less stringent. This study is expected to be useful for other novice developers who get difficulty in submission software on time, right cost and right quality at the scope of the software that has been agreed.   
Perancangan Model Data Warehouse dan Perangkat Analitik untuk Memaksimalkan Proses Pemasaran Hotel: Studi Kasus pada Hotel Abc Miranda, Eka
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2731

Abstract

The increasing competition in hotel business forces every hotel to be equiped with analysis tools that can maximize its marketing performance. This paper discusses the development of a data warehouse model and analytic tools to enhance the company's competitive advantage through the utilization of a variety of data, information and knowledge held by the company as a raw material in the decision making process. A study is done at ABC Hotel which uses a database to save the transactional record. However, the database cannot be directly used to support analysis and decision making process. Based on this issue, the company needs a data warehouse model and analytic tools that can be used to store large amounts of data and also potentially to gain a new perspective of data distribution which allows to provide reporting and answers of ad hoc users questions and assist managers in making decisions. Further data warehouse model and analytic tools can be used to help manager to formulate planning and marketing strategies. Data are collected through interviews and literature study, followed by data analysis to analyze business processes, to identify the problems and the information to support analysis process. Furthermore, data warehouse is designed using analysis of records related to the activities in hotel's marketing area and data warehouse model. The result of this paper is data warehouse model and analytic tools to analyze the external and transactional data and to support decision making process in marketing area.
Analisis Incremental Kelayakan Penambahan Lini Perakitan Engine Motor Pt Abc Jonny, Jonny
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2800

Abstract

Manufacturing motorcycle unit in Plant 1 of PT ABC requires engine supply from Plant 2. This has some burden on the operating cost of Plant 1 and the opportunity loss as well due to delay of motor engine delivery. Based on the problem, team proposes additional engine line in Plant 1 to cut engine supply from Plant 2. Therefore, team analyzes this proposal using incremental analysis to determine whether the proposal is feasible or not by comparing before and after condition with result NPV about IDR 967 Billion and Payback Period under 1 year. By this result, team determines that this proposal is recommended to be approved by management. 
Evaluasi Knowledge Management System di Kompas Gramedia Menggunakan Analisis Faktor Kristin, Desi Maya; Sardjono, Wahyu
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2695

Abstract

Evaluation of Knowledge Management System (KMS) is performed to determine the state of KM Portal and provide suggestions to improve the benefits and usability for employee and the company. The evaluation analysis of KMS uses factor analysis to determine the factors that influence user awareness in using KM Portal of Kompas Gramedia. The analysis shows three factors: the quality of KM Portal and user support; user participation; processes and procedures. All factors produced a model that can be used for the control of KM Portal. In accordance with the data processing, the current state of KM Portal is enough. This situation has not yet met the standards that company desires so the company needs further development to obtain a perfect score. 
Pengembangan Aplikasi Media Komunikasi Badan Pengawas Pemilu Republik Indonesia Berbasiskan Web dan Wap Chandra, Alex; Kencana, Tonny Lion; Kurnianingsi, Yurri; Elidjen, Elidjen
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2791

Abstract

The research objective is to develop Web-based and WAP-based communiaction media applications to facilitate communication between the Board of Election Supervisors of Republic of Indonesia (Bawaslu RI) with all stakeholders associated with the public election. The research method used are analysis and design Methods. Analysis includes system analysis, identification of information needs, and the analysis of existing websites. The results of this analysis are used to design the applications of the proposed system of communication media. The design is implemented for database design and structured web-based and WAP-based applications. This research obtains Web-based and WAP-based communiaction media applications that facilitate communication about everything related to the public election.
Evaluasi Kepuasan Mahasiswa terhadap Sistem Informasi Penjadwalan Kuliah Biro Administrasi Umum dan Keuangan Universitas Xyz Udiono, Tangkas
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2686

Abstract

 One way to identify the success indicator of the use of information systems is conducting a survey of user satisfaction. Measuring the quality of Information Systems of Registration and Lecture Scheduling at the Bureau of Administration and Finance University of XYZ is important because it aims to find out how far the role and utilization of existing information systems run. This research aims to investigate the faktors that influence user satisfaction of the information system. Data are collected through the distribution of questionnaires with the number of respondents as much as 378 students. The data collected are analyzed using sampling techniques. The results of the regression analysis and the correlation between Information System Quality and Information Quality affect student satisfaction by 6.6% and 4.9%.
Penerapan Ensemble Feature Selection dan Klasterisasi Fitur pada Klasifikasi Dokumen Teks Aryuni, Mediana
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2745

Abstract

An ensemble method is an approach where several classifiers are created from the training data which can be often more accurate than any of the single classifiers, especially if the base classifiers are accurate and different one each other. Menawhile, feature clustering can reduce feature space by joining similar words into one cluster. The objective of this research is to develop a text categorization system that employs feature clustering based on ensemble feature selection. The research methodology consists of text documents preprocessing, feature subspaces generation using the genetic algorithm-based iterative refinement, implementation of base classifiers by applying feature clustering, and classification result integration of each base classifier using both the static selection and majority voting methods. Experimental results show that the computational time consumed in classifying the dataset into 2 and 3 categories using the feature clustering method is 1.18 and 27.04 seconds faster in compared to those that do not employ the feature selection method, respectively. Also, using static selection method, the ensemble feature selection method with genetic algorithm-based iterative refinement produces 10% and 10.66% better accuracy in compared to those produced by the single classifier in classifying the dataset into 2 and 3 categories, respectively. Whilst, using the majority voting method for the same experiment, the similar ensemble method produces 10% and 12% better accuracy than those produced by the single classifier, respectively.
Pengukuran Kinerja Efektif Departemen Pengembangan Sistem Informasi dengan Metode Balanced Scorecard pada PT. Xyz Suryani, Eli; Fadli, Muhammad
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2736

Abstract

Department of Information System Development at PT XYZ becomes a trigger in the movement of the Information Technology Development of the company.  However it is not merely the fastest, the biggest or the most completed project that determine the success, but the most important is to align with the business strategy due to achieve the company’s goal and objective. Recognizing the performance does not only need a measurement system but also right measurements. The purpose of the study is to design an effective Key Performance Indicator in Departement of Information System Development that is aligned with current indicators to measure the success of company’s strategy execution. The choosen indicators are cascaded from company’s strategy map and information technology strategy map. The design uses balanced scorecard method according to data and information collected from executive interview, focus group discussion and workshop with the key persons in IT organization. Balanced scorecard method provides the integration of financial and non-fianncial factor for measurements. It allows different level formulation with same performance indicator flexibly. Recently, Department of Information System Development can monitor and develop its performance directionally. 
Tingkat Kepuasan Parkir Kampus Anggrek Binus University Ditinjau dari Fasilitas Geometri dan Survei Kepuasan Parkir Hidayat, Irpan
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 1 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i1.2796

Abstract

Evaluated from the level of saturation, Anggrek Campus Binus University facilities are considerably able to accommodate all vehicles to park. However, from observations over the years, even though the capacity still seems able to accommodate, there are still some drivers who have difficulty in placing their vehicle in the provided parking lots. In results, it take a long time for drivers to do the maneuvers. Due to this reason, there is a need to review the geometric conditions of a parking space and user parking satisfaction at Anggrek Campus. The research method is to conduct a survei for the parking geometry in a questionnaire form, which aims to determine the satisfaction level of the parking facility from the user side. The research results acquired for parking plot 4000 x 2400 mm, the type of vehicles that meet the requirements of free space to park in the lateral direction of the plot is city car, jeep, and MPV. As for the parking plot 5000 x 3000 mm, free parking space requirements for the lateral direction meet for all types of vehicles (city car, jeeps, MPV, sedans, and SUVs). Results stated that 39% of respondents are comfortable in terms of ease of parking, 37% of respondents express comfort in opening the car door after parking their vehicle, 24% said parking signs are very useful for them in getting the parking information. However, 22% of respondents expressed their discomfort in the ease of parking due to the geometry of 90° parking pattern.

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