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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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Perception Analysis of Desktop and Mobile Service Website Khoiriyah, Rizqiyatul
ComTech: Computer, Mathematics and Engineering Applications Vol 7, No 4 (2016): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v7i4.3753

Abstract

The research was conducted as a qualitative study of the website to deeper explore and examine the analysis of user perception of desktop and mobile website services. This research reviewed about user perception of desktop and mobile service website used by using qualitative methods adapted to WebQual and User Experience approach. This qualitative research refered to the theoretical reference written by Creswell (2014). The expected outcome is to know the user perceptions of the available services and information in the website along with the possibility of desktop and mobile gap arising from differences in the two services. These results can be used as a service model on the website of the user experience.
Sistem Kontrol Akses Berbasis Real Time Face Recognition dan Gender Information Nurmala, Putri; Gazali, Wikaria; Budiharto, Widodo
ComTech: Computer, Mathematics and Engineering Applications Vol 6, No 2 (2015): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v6i2.2264

Abstract

Face recognition and gender information is a computer application for automatically identifying or verifying a person's face from a camera to capture a person's face. It is usually used in access control systemsand it can be compared to other biometrics such as finger print identification system or iris. Many of face recognition algorithms have been developed in recent years. Face recognition system and gender information inthis system based on the Principal Component Analysis method (PCA). Computational method has a simple and fast compared with the use of the method requires a lot of learning, such as artificial neural network. In thisaccess control system, relay used and Arduino controller. In this essay focuses on face recognition and gender - based information in real time using the method of Principal Component Analysis ( PCA ). The result achievedfrom the application design is the identification of a person’s face with gender using PCA. The results achieved by the application is face recognition system using PCA can obtain good results the 85 % success rate in face recognition with face images that have been tested by a few people and a fairly high degree of accuracy.
Teknik Sampling Snowball dalam Penelitian Lapangan Nurdiani, Nina
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.v5i2.2427

Abstract

Field research can be associated with both qualitative and quantitative research methods, depending on the problems faced and the goals to be achieved. The success of data collection in the field research depends on the determination of the appropriate sampling technique, to obtain accurate data, and reliably. In studies that have problems related to specific issues, requiring a non-probability sampling techniques one of which is the snowball sampling technique. This technique is useful for finding, identifying, selecting and taking samples in a network or chain of relationships. Phased implementation procedures performed through interviews and questionnaires. Snowball sampling technique has strengths and weaknesses in its application. Field research housing sector become the case study to explain this sampling technique.
Analisis Dan Perancangan Data Warehouse Pada PT Pelita Tatamas Jaya Huda, Choirul; Ranope, Jumas; Lumenta, Marly; Kevin, Kevin
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.v1i2.2395

Abstract

The purpose of this research is to assist in providing information to support decision-making processes in sales, purchasing and inventory control at PT Tatamas Pelita Jaya. With the support of data warehouse, business leaders can be more helpful in making decisions more quickly and precisely. Research methodology includes analysis of current systems, library research, designing a data warehousing schema using bintang. The result of this research is the availability of a data warehouse that can generate information quickly and precisely, thus helping the company in making decisions. The conclusion of this research is the application of data warehouse can be a media aide related parties on PT Tatamas Pelita Jaya in decision making. 
Logika Fuzzy untuk Audit Sistem Informasi Husni, Hari Setiabudi; Arifin, Firman; Yuliyanti, Yuliyanti
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.v4i1.2684

Abstract

The aim of this research is to study and introduce fuzzy logic into audit information system. Fuzzy logic is already adopted in other field of study. It helps decision process that incorporates subjective information and transforms it to scientific objective information which is more accepted. This research implements simulation scenario to see how fuzzy logic concept should be used in audit information process. The result shows that there is a possible concept of fuzzy logic that can be used for helping auditor in making objective decision in audit information system process. More researches needed to further explore the fuzzy logic concept such as creating the system of fuzzy logic and build application that can be used for daily information system audit process. 
Analisis dan Perancangan Sistem Basis Data Pembelian, Penjualan, dan Persediaan Pada PT Interjaya Surya Megah Chowanda, Andry
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. 
Hubungan Algoritma Bezier dan B-Spline pada Fungsi Harmonisnya untuk Menciptakan Bentuk Kurva Sesuai Keinginan Santoso, Djunaidy; Rasjid, Zulfany Erlisa; Irwansyah, Edy
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.v2i2.2821

Abstract

Computer graphics is a science widely used in any areas. Its up-to-date technique is applied to solve image problems related to needs of customer and decision-making. Images can be analyzed so as produce good form which its accuracy is still under researches using CAD and CAM. This study aims to associate algorithm Hermite, Bezier, B-Spline on its harmony function by creating a proper image to a form that can be used in drawing engineering for decision making. This study produces an adequate algorithm for image design. 
Editorial Page and Table of Content Manik, Ngarap Imanuel
ComTech: Computer, Mathematics and Engineering Applications Vol 8, No 3 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i3.4065

Abstract

Implementasi Aplikasi Harga Pokok Produksi pada UKM Mariani, Vini; Christian, Lianawati; Hendarti, Henny
ComTech: Computer, Mathematics and Engineering Applications Vol 6, No 1 (2015): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v6i1.2297

Abstract

The accuracy of the production cost report is the basis of the control and decision making. Production cost affects the selling price of a product. The purpose of the study is to examine the procedures, forms, and reports relating to accounting information system production cost calculation in SMEs, analyze and design information systems that can support the planning and control of production information system ranging from production planning to report the cost of production by using The weighted average method. The methodologyused is the method of data collection, information and interviews. The method of designing the production cost is Object Oriented and Design. Program language used is Visual Basic. Implementation of the production cost applications in small and medium enterprises (SMEs) is to make application of MO estimation recording process and MO rate, cost card standard recording, WIP process recording, the quotation letter of raw materials, receipt of goods recording, the working hours card recording, cash expenditures recording, WIP transfer unit recording (work in process), the process of the final WIP units recording.
Web-Based Expert System to Detect Stress on College Students Persulessy, Grensya Bella Vega; Pratama, Nova S; Setiawan, Novianti; Sevani, Nina
ComTech: Computer, Mathematics and Engineering Applications Vol 10, No 1 (2019): ComTech (In Press)
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v10i1.4987

Abstract

This research aimed to make the application to detect stress for the college students. By early detecting stress on college students, it could help them to cope with their stress and avoid the negative impact of the stress. The Holmes-Rahe Readjustment Rating Scale was used to detect stress based on student’s life events. Each event had its score. There were 31 questions provided by the system. The final score would conclude the stress categories. Using the Forward Chaining Inference Engine, the system would collect the fact of the student’s life and give the result by accumulating scores on questions posed to the users from every question. The system also provided the reminder feature that led to continuous monitoring of stress condition in the students. About 65 correspondents who were selected using random sampling were asked to fill out questionnaires regarding this system after they tried the application. With the continuous monitoring, the researchers find that this system gives a result that all users have decreased their score of stress levels. Moreover, the correspondents rate that the design of the application is good enough, and the system is interesting and useful for helping students to provide a solution for stress.

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