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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 1,556 Documents
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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. 
Perancangan Model Basis Data Sistem Operasional Berbasiskan Customer Relationship Management Oktavia, Tanty
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.v4i2.2590

Abstract

Data is a very important asset for a company since it describes the company’s running processes. Database as a part of the information system components provides a big influence in helping data integration in a company. Therefore, we need a system which can facilitate the availability of data to be processed and used as needed, This study takes a company engaged in the sale of bike and spare parts, namely PT TDI, as the object of the study. At this time, PT TDI uses an integrated system in helping the company's operations. Along with the vision and mission, PT TDI intends to build a new operating system by applying the concept of Customer Relationship Management (CRM) which is believed to assist the company in maintaining relationships with customers using web-based platform. It aims to facilitate interaction with customers so that it can be done anytime and anywhere. This study implements the database design life cycle adjusted to the component aspects of CRM. The result achieved is a model that combines database CRM systems that can help companies improve relationships with customers.
Penerapan Unsur Budaya Indonesia pada Aplikasi Game Tetris Nusantara Berbasis Android Agung, Albertus; Prajena, Gredion; Gunawan, Gunawan; Mariski, Ervia
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 2 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i2.2182

Abstract

Game Application of Tetris Nusantara is a game application that can run on mobile devices that have Android operating system. The game has elements of Indonesian culture and a new gameplay of Tetris. Therefore, this game application aims to entertain and introduce cultural diversity that exists in Indonesia so that players are not only entertained but get the knowledge through the application of this ‘Tetris Nusantara’ game. Research methods used in developing applications of this game is the waterfall method of research because it has a stage suitable for developing applications of this game. This game application allows users to find out information about the culture in Indonesia and entertained with a new gameplay of Tetris game. The results of this research is the creation of the archipelago Tetris game application using Indonesian cultural elements that can create interest for players to learn and add to the knowledge of the culture in Indonesia.
Model Evaluasi Perangkat Lunak: Pemodelan Visual Berbasis Open Source Pangestu, Harijanto
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.v2i2.2843

Abstract

Visual modeling softwares are numerously available based on both open source and proprietary. However, the softwares are not easy to use and tools available are so confusing for users. Therefore, the evaluation model is needed to choose the proper software. The purpose of this study is to create a model to evaluate the visual modeling software from the user interface and usability. Studied softwares are open source-based because they can be obtained easily for free. The softwares are Umleditor, Umlpad, Violet UML editor, ArgoUML, HE, StarUML, UMLet, Winbrello. This evaluation model is also able to evaluate other softwares. This evaluation uses DECIDE framework which is a guiding framework for evaluation. Evaluation approaches and techniques used are GOMS approach. The final results of this study is an evaluation model that provides software recommendations, namely UMLet 9.1 as well as one which has good usability, like effectiveness, safety, good utility, learnability, memorability, although for efficiency it gets the second place compared to DIA. 
Android Based Thesis Mentoring System Using Google Firebase Engel, Mychael Maoeretz
ComTech: Computer, Mathematics and Engineering Applications Vol 9, No 2 (2018): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v9i2.4992

Abstract

This research aimed to build a platform to carry out the thesis mentoring process which was periodic, real-time, systemized, and well-integrated in Ciputra University in Surabaya. The researcher used Google Firebase technology provided by Google and built it on an Android-based platform. The method used was the Systems Development Life Cycle (SDLC) model. It was divided into six stages of the process: requirement analysis, system design, implementation, system testing, system deployment, and system maintenance. Data collection methods used were observation and interviews conducted to the final project coordinator in the study program. The results show that system has six main features including progress overview of thesis, chat room, guidance schedule, guidance book, important date, and announcement. Moreover, the thesis mentoring system is easy to use and consists of easyto-understand menus. After going through the process of analysis, this system is very helpful in scheduling guidance, monitoring the progress of student thesis work, and managing announcement and important date.
Business Impact Analysis Terkait Penanganan dan Pemulihan Terhadap Bencana di PT Bank XYZ Rubil, Rubil
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.v3i2.2318

Abstract

For each company, disasters may have diverse impacts either financially or non-financially. Therefore, a company requires a business continuity plan. One important factor in developing such plan is Business Impact Analysis (BIA). With BIA, a company can identify and analyze Critical Business Functions (CBFs) and potential impacts on the business whether operationally or financially, and further, business recovery priority, strategy and solution can be determined following a disaster.Methodologies used in developing this BIA are quantitativeand qualitative where for aspects related to financials, quantitive method is used. Meanwhile, for those aspects\ related to non-financial areas, qualitative method is used. The development of this BIA was done through the dissemination of questionnaires to 62 business units in PT Bank XYZ. To draw the BIA, eight parameters were used, where as for the final result, there were three criticality levels found in the business units of PT Bank XYZ, i.e. very critical level - 18 business units (29%), critical level - 23 business units (37%) and less critical level – 21 business units (34%). In addition, there were 71 applications used by CBFs. Based on the results of this study, PT Bank XYZ can determine the priority and key strategies for business units that require handling and recovery when a disaster occurs to maintain the bank's business operation's continuity and sustainability.Withthat, the company can minimize the potential loss resulted from a disaster.
Groupware sebagai Salah Satu Teknologi Informasi untuk E- Learning (Distance Learning) Julisar, Julisar
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.v4i2.2487

Abstract

E-Learning is the process of distance learning by using of computer technology, computer network and/or Internet. E-Learning is delivered by utilizing computing devices. With e-learning, lecture material can be distributed either on-line using a network connection as well as off-line using a mobile media. One type of software used in distance learning is Groupware. It is a software product to support a group of people who share a task or goal to work together to achieve that goal. Two types of groupware technology are Electronic Teleconferencing and Real-time Collaboration Tools. Electronic Teleconferencing is electronic communication technology that allows two or more people in different locations to simultaneously conduct the conference. In Video Conference, participants in a location can see the other participants who are in different locations.
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.   
Peranan Sistem Erp dan Perubahan Pola Kerja sebagai Upaya Meningkatkan Kinerja Perusahaan Alianto, Hendra; Wijaya, Santo F
ComTech: Computer, Mathematics and Engineering Applications Vol 5, No 1 (2014): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v5i1.2622

Abstract

The ERP system is an integrated system that supports the core business activities of a company. These activities include manufacturing, logistics, finance and accounting, sales and marketing, and human resources. The ERP system will help related departments in a company to share data and information, cost reduction, and improved management of business processes, which will have an impact on work activities become more efficient and more effective. The method in this research is a case study approach, analysis, evaluation of documents and data collection. This study aims to discuss how the role of the ERP system and changes in work patterns as an effort to improve the performance of companies backed by the role of the ERP system.
Perancangan E-Commerce pada PT DAF Rudy, Rudy; Abraham, George Aryanto; A, Ryan M; Yohanna, Yohanna
ComTech: Computer, Mathematics and Engineering Applications Vol 1, No 1 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i1.2216

Abstract

The purpose of this study is to analyze and design e-commerce at. DAF to help the sales process is then expected to improve service. The methodology used is the method of analysis, where the review is held directly to the field, observing and analyzing the data obtained, and using the design method, which includes design of business models, screen designs and database design. Results to be achieved is the application of e-commerce web-based, whereby the system can enable customers to obtain the desired information is complete, make transactions easier and faster. Conclusions obtained are PT DAF can take advantage of e-commerce to support their business today and an appropriate business model is the highest-quality models.

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