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INDONESIA
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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Infrastuktur Teknologi Informasi yang Menunjang Strategi Bisnis pada Perusahaan Tambang: Studi Kasus PT XYZ Suryani, Eli
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.v4i2.2480

Abstract

The purposeof this study is to analyze, evaluate and recommend infrastructure of information technology that addresses its flexibility to run along the continouing development of the company, to avoid the potential risk that may come which is more costly for the company due to failure in dealing with those changes.To obtain more accurate data and information, this study uses observation and interview technique with the top management and key person from Information Technology Department. It can be concluded that strengthening the information technology infrastructure is able to strengthen business processes that built upon it, and enhance more value to the company.
Perancangan Model Hirarki Keputusan dan Sistem Basis Data pada Sistem Informasi Sumber Daya Manusia Sub-Sistem Rekrutmen dengan Metode Berjenjang Miranda, Eka; Julisar, Julisar
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.v4i1.2733

Abstract

Management of employees as a resource is essential to enhance the effectiveness of employee’s performance, and the process efficiency of for organizations or companies. Possible problems related to the management of human resources need to be diagnosed which one to be solved as a priority. The problem is how to design the decision making model to help the Human Resource Department in determining the criteria for recruitment which can be used to take decisions on recruitment of human resources. This research aims to design a model of decision making systems and databases to support accuracy of decision making in human resource information system to create high loyalty and productivity so that the productivity of the company can be further improved. The research is divided into two phases: collection as well as analysis of data and design model. Specifically target to be achieved in this research are to identify the critical success factors of the model of decision making system for recruitment and develop models of decision-making system. The results obtained from this research are hierarchical decision models using analytical hierarchy process and its database design for the recruitment sub-system of human resource.
Pengembangan Sistem Informasi Akuntansi untuk Proses Produksi pada PT. Xyz Kurniawan, Yohannes; Luhukay, Devyano; Halim, Titan
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.v5i1.2615

Abstract

The purpose of the research is to identify and analyze the need of accounting information system for processes, procedures, and documents related to the production process at PT XYZ, which design the useful of accounting information systems to support business processes that occur. The design method used in this research is a method of Object Oriented Analysis and Design (OOAD) with the UML notation, including: use case diagram, class diagram, and component architecture. Analyzes performed related to the organizational structure and business processes based on the theory of accounting information systems production processes and internal control theory. The result achieved by analysis and design of accounting information systems production process is a desktop based application that can assist in the activities of the production process, especially in the documentation and storage of transaction data, and produce reports in accordance with company requirements. Conclusions derived from the analysis and design is the implementation of a desktop based application that can help PT XYZ to improve systems and procedures, so it can obtain the required information on time and accurately.
Usability Assessment of International Office Website of Diponegoro University with Scenario-Based Usability Evaluation Method and Wammi Method Purwaningsih, Ratna; Yenifi, Ikhsan
ComTech: Computer, Mathematics and Engineering Applications Vol 6, No 3 (2015): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v6i3.2209

Abstract

Website development needs to pay attention to usability aspect which consist of four factors: efficiency, effectiveness, satisfactions and error rate. The website of International Office of Diponegoro University provides academic information for Indonesian students and foreign students. The website still has some problem, especially on searching certain information. This research aims to evaluate the design of the existing website and measures the usability. A well-designed website will help users to meet theirs needs and purposes. The methods used in this study are Scenario-Based End-User Evaluation and WAMMI (Website Analysis and Measurement Inventory). Users perform a number of task on the existing website and on the redesigned website and then provide feedback for each task they have done and fill a WAMMI questionnaire as a test of memorability. This questionnaire used to test users’ memory on access process of a page from the site. The results of the data processing of usability test show that redesigned website has better value than existing website on effectiveness, efficiency, memorability and error rate.
Computer-Based Monitoring and Remote Controlling for Oil Well Pumps Using Scada Tjiptadi, Rudi
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.v2i2.2932

Abstract

The research aims to change manually the monitoring and controlling of oil well pumps into a computer-based system using SCADA (Supervisory and Data Acquisition) system. To design the protection system which consists of controller unit and display system, RTU (Remote Terminal Unit) and MTU (Master Terminal Unit) are used. The research results in a controller unit which is able to communicate to personal computer using RS-232 C and an alarm system to protect oil pump motors by detecting sensors installed at the pumps. 
Prediksi Pendapatan Sewa Dengan Data Mining Pada Perusahaan XYZ Liana, May; Sanjaya, Christine; Widodo, Agus; Martinus, Marshall
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.v1i2.2344

Abstract

XYZ Company has a program to predict leasing income that only predict in constant condition where every tenant assumed for leasing renewal. This research is done to build accurate income prediction system that accommodate in making strategic decision towards the company. Premier data collecting is through direct interview with the company management. The analysis is through data training from the previous years to build neural network model. The analysis result shows that this model has produced error total value that is smaller than the previous error total value in years before. Therefore, it could be concluded that data mining with neural network technique that produced more accurate leasing income that could help the company making decision based on the hidden information in the database.
Energy Monitoring System Berbasis Web Zulkarnain, Novan
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.v4i2.2524

Abstract

Government through the Ministry of Energy and Mineral Resources (ESDM) encourages the energy savings at whole buildings in Indonesia. Energy Monitoring System (EMS) is a web-based solution to monitor energy usage in a building. The research methods used are the analysis, prototype design and testing. EMSconsists of hardware which consists of electrical sensors, temperature-humidity sensor, and a computer. Data on EMS are designed using Modbus protocol, stored in MySQL database application, and displayed on charts through Dashboard on LED TV using PHP programming.
Model Pelestarian Lingkungan Hidup Berbasis Teknologi Informasi pada Aktivitas Sosialisasi Berbasis Masyarakat Sebagai Sentra Partisipan Sardjono, Wahyu
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.v2i1.2765

Abstract

The environment is a gift and grace of the Almighty God to man as home to life. In utilizing natural resources to promote human welfare, a sustainable environmental development should be carried out, which cares about the needs of present and future generations. On the other hand, the development of information and communication technology (ICT) grows so fast that can change the way people live and work. Collaboration between the environment and its preservation with ICT knowledge can be developed into an environmental knowledge and management system (E-KMS). An approach to efficiency and effectiveness in ICT which includes variables of timing, capacity, relevance, accessibility, flexibility, accuracy and reliability can be used to explore the determinants of the success of the socialization of community-based environmental conservation as a central participant. The multivariate statistical methods and factor analysis can produce new variables declared as an indicator of research results and model testing. 
Analisis Pengaruh Service Quality dan Sistem Informasi Sekolah terhadap Customer Satisfaction yang Berdampak pada Customer Loyalty Studi Kasus Sekolah Xyz Kurniawan, Roni
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.v5i2.2241

Abstract

Education has a strategic role in preparing qualified future generations. Education has business potential that is reliable and promising, considering the timeless education, as well as the expectations of every parent to their children to have the access to the best education. Evolving world of education today isdemonstrated by the high rate of growth of established schools, especially private schools. Parents today are more savvy and critical in determining the best school for their children, taking into account various aspects, ranging from excellent schools, curriculum, learning systems, the facility to activities that make their children good personality and smart. A more selective attitude that makes private education institutions now have to be more innovative in order to compete. This study was conducted to determine how big the Service Quality and Information Systems School, affect Customer Satisfaction, which will have an impact on Customer Loyalty (Case Study at XYZ School). The study was conducted with data collection techniques in the form of questionnaires toa total of 100 respondents, using descriptive statistical calculations, where the data were analyzed by using electronic data processing methods with the support of SPSS 17.0 To measure the influence of independent variables on the dependent variable, then the path analysis (path analysis) was used. The results showed that the Service Quality and Information Systems School were contributing together, and significant in Customer Satisfaction. Service Quality, Information Systems and Customer Satisfaction of school together contributesignificantly to Customer Loyalty.
Perancangan Sistem Otomatis Update Pada Aplikasi Desktop Abios Iskandar, Karto
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.v1i2.2406

Abstract

Unlike web applications easier to update the latest version, desktop applications more difficult and must involve the user in doing so. It is caused by a desktop application is an application that is installed in the computer user. The purpose of this research is to design an automatic system updates on a desktop application, an example case: Application Binus International Operational Support (ABIOS). This research used literature study and system design. In desktop applications, often there is update the latest applications that are not known to the user who sometimes fatal and disrupt business operations. Generally, developer will inform the changes version to user that they can update the application. In an update of applications, should be done by the system automatically, not manually by users. Once in a while, the user background is not from computer base. After doing the research, it can be concluded that the system automatically updates the application has benefits to users in obtaining information regarding the latest version, and can assist in automatically update the latest application is based on computerization. For further development of this system is expected to operate on multi platforms and or mobile applications. 

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