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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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Perencanaan Geometri Jalan Berdasarkan Metode Bina Marga Menggunakan Program Visual Basic Prahara, Eduardi
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.v2i1.2759

Abstract

One of the main things in a highway construction plan is the geometric design that includes horizontal and vertical alignment design. This study aims to formulate the steps of highway geometric design into Visual Basic 2005 program. The design steps are the calculation of horizontal and vertical alignment. Using Visual Basic 2005, it is expected that the calculation can be done faster than the manual calculation without mistake. The program is validated by comparing results obtained by manual calculations with a difference about 1x10-4 which is considered accurate. As a case study, a geometric road design is conducted in Bogor in 2009 with a fairly low-speed plan 20-40 km/hour. In the plan, the road has 28 PI (Points of Intersection) on the horizontal alignment and 15 PVI (Point of Vertical Intersection) and obtains good results in accordance with requirements and regulations issued by Bina Marga. 
Evaluasi Sistem Informasi Penjualan Kredit dan Piutang Dagang Karmawan, I Gusti Made
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.v2i2.2958

Abstract

This study evaluates the implementation of management control and internal controls in application of sales systems information as a basis to support and produce accurate information in decision making. The methods used are bibliography study, interview, observation and questionnaire in the form of check lists. Following is an analysis conducted on the survey findings and the identification of strengths and weaknesses of internal control. Then audit is performed using Audit around the Computer method. From the evaluation results obtained the strengths and weaknesses of internal control. Weaknesses are found to be expressed in the form of problem findings, the potential risks and recommendations for corrective actions. This study succeeded in obtaining the evaluation results for boundary control, input, output, security and operational in the information system of credit sales and account receivables. 
Evaluasi Sistem Informasi Manajemen Perhotelan Berbasis Web pada PT. Xyz Suryanto, Suryanto
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.v5i2.2235

Abstract

Information system in a company is expected to support their business processes. Therefore, it requires an evaluation of existing information system and provides recommendations hospitality management information system to meet the gap between existing information systems and user needs. The method of this study is divided into two, namely the method of data collection and analysis methods. Methods of data collection using interviews and observation techniques. Methods of data analysis using gap analysis, followed by a costbenefit analysis and IT Balanced Scorecard. The evaluation results through Fit/Gap Analysis states that the implementation of a management information system is feasible and able to meet all user needs. Cost Benefit Analysis provides an assessment of tangible benefits IT Balanced Scorecard provides an assessment of intangible benefits. The results of the two methods stated that the new information system worth to be implemented.
Pemodelan Principal Component Regression dengan Software R Ohyver, Margaretha
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.v3i1.2400

Abstract

Principal Component Regression (PCR) is one method to handle multicollinear problems. PCR produces principal components that have a VIF less than ten. The purpose for this research is to obtained PCR model using R software. The result is a model of PCR with two principal components and determination coefficients R(square) = 97,27%.
Pemanfaatan Video Streaming Pada Sistem Keamanan Rumah Dengan Menggunakan Mobile Devices Mahatmaputra, Samuel
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.v1i2.2370

Abstract

This research has been produced a function prototype of video streaming with JPEG/MJPEG picture quality in a residential security system using mobile device (cell phone). The security system is an early warning system which server will deliver text messaging to client if there is an event in the censor of home webcam to detect movement. The prototype is divided into two types, server and client. The client will be installed a mobile application that automatically activated if there is inbound message in specific port. Meanwhile, the application in user client is completed with functionality to visit particular webpage, one touch call to security phone numbers to do setting (previous research result). And, as the research objective this year, user will see the video streaming in a good quality from the object. 
Peranan Teknologi Informasi dalam Pengembangan E-Learning pada Fakultas Mipa di Indonesia Polla, Gerardus
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.v1i2.2659

Abstract

The fast development of information technology has changed paradigm of human life in almost all aspects and their activities, including education. This paper is purposed to discuss about IT ability and its function in supporting all education events and activities. One of education need development alternatives in science and mathematics (MIPA) faculty in Indonesia is the needs of IT development that could support long distance educational system in a virtual university form. This paper also describes about how IT support educational theories like constructivist, colaborative learning that has been transformed in learning method from teacher-centered into student-centered in creating student culture of self-learning in MIPA faculty. 
Kajian Sketsa Digital dalam Proses Reka-Struktur Bentuk-Bentuk Surface Tomasowa, Riva
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.v4i2.2551

Abstract

Free form surface has a multiple complexity curve intrinsically, so that special approach is needed to form the structure. Geodesic shell is well-known as the shortest path between two points on a curved surface. This method is used to generate the structure of form, which can be easily determined by its basic shape or the complex form. This paper explains how Geodesic theory can assist to generate structures in the early stage of digital sketching. A workshop that has initially started becomes a topic to this discussion. The digital sketching process to apply the theory is the aim of this paper.
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.
Students’ Satisfaction on Academic Services in Higher Education Using Importance-Performance Analysis Suroto, Suroto; Nindiani, Aina; Purba, Humiras Hardi
ComTech: Computer, Mathematics and Engineering Applications Vol 8, No 1 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i1.3776

Abstract

The objective of this research was to determine the students’ satisfaction level on the academic services provided by the accounting program at a private university in Jakarta and to evaluate attributes that should be improved. The data were obtained from questionnaires by using 5 quality dimensions. There are tangible, reliability, responsiveness, assurance, and empathy. Moreover, the data were processed by using Excel, SPSS 20, Customer Satisfaction Index (CSI) to determine the level of customer satisfaction, and also Importance-Performance Analysis (IPA) to determine the attributes of service be repaired and maintained. The results show that the CSI is 71%, which means that the majority of customers are satisfied with the performance of the service quality of accounting program. Meanwhile, the results of IPA indicate that the improvement priorities have two attributes in quadrant 1. They are the availability of space to support student activities and the availability of books and teaching materials related to the syllabus. These attributes are the top priority because the importance level is high while the performance level is low from the customers’ point of view.
QR Code Reader pada Smartphone Android untuk Aplikasi Layanan Restoran Adrianto, Dennise; Yesmaya, Violitta; Agung, Albertus; Ivander, Davin Timothy; Elysia, Elysia; Natalie, Nico
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.v6i2.2271

Abstract

The development of today's smartphone technology has a huge impact to the world of information technology and telecommunications. The emergence of a variety of applications for smartphones can improve the performance and effectiveness of an activity. Some restaurants have made use of smartphones in the business process, but only as a recording medium order or see a list of menus available in the restaurant. The purpose of this paper is to make the application as a whole that integrated the frontend and backend operations that help the process from ordering food, serving customer to managing restaurant data such as restaurant menus, employees, and transactions. The method used is the method of analysis (study of literature, analysis of similar applications, questionnaires, and interviews) and extreme programming design method. The results of this research is frontend application for food ordering and restaurant service and a backend system that has additional features such as restaurant profiles, restaurant menu data includes descriptions, recommended menuand images, promos, restaurant rating or menu rating, the waiter call feature, view bill and request features bill. The conclusion of this research is the developed application can help ordering process and restaurant servicesprocess in a restaurant with good customer satisfaction and good application performance.

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