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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 1,585 Documents
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Improving Distributed Denial of Service (DDOS) Detection using Entropy Method in Software Defined Network (SDN) Abdurohman, Maman; Prasetiawan, Dani; Yulianto, Fazmah Arif
ComTech: Computer, Mathematics and Engineering Applications Vol 8, No 4 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i4.3902

Abstract

This research proposed a new method to enhance Distributed Denial of Service (DDoS) detection attack on Software Defined Network (SDN) environment. This research utilized the OpenFlow controller of SDN for DDoS attack detection using modified method and regarding entropy value. The new method would check whether the traffic was a normal traffic or DDoS attack by measuring the randomness of the packets. This method consisted of two steps, detecting attack and checking the entropy. The result shows that the new method can reduce false positive when there is a temporary and sudden increase in normal traffic. The new method succeeds in not detecting this as a DDoS attack. Compared to previous methods, this proposed method can enhance DDoS attack detection on SDN environment.
Keterlibatan Masyarakat Urban dalam Pengolahan Sampah Rumah Tangga Mariana, Yosica
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 2 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i2.2301

Abstract

Generally, activities conducted by people generate waste. The waste which increasingly rises causing a big problem. Therefore, the role of community in waste management will strongly support the process of solving the waste problem in the community. The purpose of this study was to determine the relationship of engagement and active participation of citizens, as reflected in the attitude of citizens in the activities related to the response to the waste problem in the community. A descriptive method was used in this study to describe the involvement and participation in the prevention of waste. The result showed that the paradigm of PSBM (community-based waste management) appeared sporadically and has not yet received the maximum support from regional governments. A paradigm which is “people pay, the government manages“, has grown within the community for years. It would hardly change people’s behaviour patterns in solving the waste problem in the community since changing the city into a city that is clean, comfortable and healthy involved many parties, including the community.
Perancangan Aplikasi Monitoring Produksi pada Perusahaan yang Memproduksi Acrylic Legowo, Nilo; Yoga, I Made Kresna
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.v3i1.2466

Abstract

A lot of problems often occur in production monitoring, because companies still rely on manual processing system. Therefore, this research is objected to facilitate the monitoring of production processes, to minimize human error in the production process, to make automatic the process of existing transactions, toclarify the duties of production monitoring of an acrylic manufacturer. The research methodology used is literature study by reviewing previous theories and studies related to the topic. Furthermore, analysis method by studying the running system of the company as well as evaluating the distributed questionnaire and analyzing the results. And finally is the design method using the Object-Oriented with UML. The research resulted in an application design of a production monitoring system. The result of this design has been implemented into the selected DBMS. The new monitoring system helps monitoring the production system properly, as well as makes the transaction run systematically. The each production process starting from project orders, sample orders, sales orders, material releases, production, assembly, and delivery order within can be monitored quickly and properly. The activity reports can also be generated more systematically and comprehensibly.
Aplikasi Perangkat Ajar “Petualangan Fisika” Berbasis Multimedia untuk SMP Kelas 8 Purnomo, Fredy; Simidjaja, Silviana; Pangestuti, Dwi; Stifanus, Anggondo Paulus
ComTech: Computer, Mathematics and Engineering Applications Vol 2, No 1 (2011): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v2i1.2724

Abstract

Multimedia can be used as a supportive element in education. The most significant implementation of multimedia is shown in computer assisted instruction (CAI). It is a self-instructional program which provides an accessible, interactive, and flexible way of presenting curriculum material. Therefore, this research objective is to design and develop a CAI for physics as a supportive learning method at school. Interactive Multimedia System Design & Development Cycle is used as the research method. It explains about a development and design cycle, especially for interactive multimedia system. Any information and data for analyzing user's need are obtained through questionnaire and interview. From the research, it is shown that most of the students face difficulties in learning physics as they imagine the logic or process that happens. Being implemented, most students as well as teachers are interested in this application that makes it easier for them to understand the physics process. 
Rancangan Sistem Informasi Pengendalian Kualitas Produk Barrel pada PT OneJect Indonesia dengan Metode Six Sigma Sudirwan, J.; L., M. Marciano
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2606

Abstract

PT OneJect Indonesia faces the high level of defect on its barrel products. To overcome this problem, this study proposes an application quality control based on information system. We implement requirement analysis based on the needs of quality control methods, while to lower the defect rate we utilize Six Sigmamethod with DMAIC (define, measure, analyze, improve, control) phases. In define phase we determine the type of product to be investigated using Critical to Quality, as well as the problems and objectives. In measure phase we calculate DPMO value and sigma level; sigma value of 3.520 is obtained. Then we calculate P control chart to see the production process control. In analyze phase we create pareto diagram to see the types of dominant defects. Then we create cause-and-effect diagram to determine the cause of defects, and five whys diagram to determine the root causes of the defects. In improve phase, we do improvement analysis through FMEA table by calculating the RPN value to determine the failure modes to be controlled. In control phase, we implement the proposal and simulation of sigma value increase. The analysis and design uses object-oriented information system by Lars Mathiasen, and UML as the requirement modeling and the design system. The results obtained are the documents of top-level analysis and design of information system as a quality control material for the actual system development.
Data Warehouse Design with Kimball Method: Case Study of Fahrenheit Manufacturing Systems Widianty, Widianty
ComTech: Computer, Mathematics and Engineering Applications Vol 6, No 4 (2015): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v6i4.2200

Abstract

Competition in the business world that increasingly stringent requires management to make decisions accurately and quickly. It is also felt by Farhenheit as entrepreneurs. To achieve thier forte in competing in theglobal competition, he needs systems like strategic decision makers which is up-to-date reliable and fast. Then the solution of area manufatur datawarehouse design is necessary to support the above objectives,i.e. : the right and fast decisions. However, Fahrenheit only has ERP as their core system currently and they do not have management support system. They have some difficulty to understand some problems and do better analysis. There are some datawarehouse development methodologies. Methods that will be used for the development of datawarehouse design is Kimball Method. Kimball method was chosen because of its development process that follows the business process is very suitable for the development of datawarehouse gradually to a company.Kimball's method gives a mart for the related business processes.This study is conducted by interview and survey from several senior managers and directors in Fahrenheit to know about their requirement and how they do analysis currently.
Evaluasi Daya Gabung Persilangan Jagung dengan Metode Diallel Tanty, Heruna
ComTech: Computer, Mathematics and Engineering Applications Vol 2, No 2 (2011): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v2i2.2859

Abstract

Corn is one of the plants that people use for food. Therefore, to obtain a superior maize crop a research is required. The formation of hybrid maize varieties can be created through a series of crosses among tetua (the parent plant). This research is conducted for selecting tetua which can give good results based on testing the general affinity and specific affinity with Diallel analysis. General affinity indicates the suitability level of an elder for various crossing partners. While special affinity indicates a specific level of suitability partner. The data of general affinity and specific affinity test is obtained from the results of crossbreeding experiments using seven tetuas. To hold a faster and a more accurate analysis in calculating the general affinity and affinity cross plants, we use a computer system. 
Rancangan Berkelanjutan Rumah Kargo Kontainer dengan Sistem Modular di Jakarta Utara Prawata, Albertus
ComTech: Computer, Mathematics and Engineering Applications Vol 3, No 2 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i2.2335

Abstract

Sustainable home design implements a sustainability system , in which the design can meet the needs of both current and future residents as well as the environment. Sustainable design is applied in order to save the environment and natural resources by minimizing its use. The house is designed as a whole by considering the management of water, waste and electricity. Social interactions and relationships between the environment and the residents nearby are also expected to be sustainable. Regarding to the needs of residents of the city whichare diverse and dense, the house design implements a modular system, with the container material which suits the needs of its inhabitants. The modular system is objected to make easy the house improvement, assembility, and material reusage. Prefabricated process is also implemented, considering the transportation and construction. Thus the range of sustainable home design with modular systems in a dense region of North Jakarta meets the needs of the community and contributes to environment sustainability.
Strategi Bisnis Internet Zappos.Com Kurniali, Sartika
ComTech: Computer, Mathematics and Engineering Applications Vol 4, No 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2514

Abstract

Zappos established in 1999 runs its business by selling shoes online (e-commerce). The founder of the company originally wanted to provide the most diverse selection to its customers by providing all the brands, styles, sizes, and colors. Now Zappos begins to expand its product line. Zappos organizes all aspects of its business (including the hiring, organization's culture, call center, inventory, website, and supply chain) to provide the best service that gives a "wow" to each party that interacts with the company. Zappos grows rapidly. In 2008 its net sales (net of customer returns) of approximately $650 million. Even so, Zappos also faces a difficult time during recession. This case describes how the core competencies of a company's e-commerce which experiences early success quickly can survive a hit. Continuing to rely on organizational culture and customer service which are a long-term investment and relatively more expensive than other conventional approaches, Zappos can cut costs.
Pengaruh Perkembangan Teknologi Informasi dan Layanan Telekomunikasi Terhadap Peningkatan Pendapatan Masyarakat Indonesia Wardhana, Ariyani
ComTech: Computer, Mathematics and Engineering Applications Vol 2, No 1 (2011): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v2i1.2756

Abstract

Information technology development grows faster every year. This phenomena makes opportunity for new businesses and business expansions in various industrial segments, especially for small and medium industries. Information technology is a part of support value in Porter’s value chain to optimalize industry performance. Application development, capacity amount, and various facilities in mobile phone access such as voice call, SMS, MMS, GPRS, 3G, 4G, and Vas add value to support primary business activities in each sector to earn more income. Income raise in many industries will bring impacts in national income and prosperity. 

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