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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 8 Documents
 1 
Search results for , issue "Vol. 8 No. 2 (2017): ComTech" : 8 Documents clear
Selection of Raw Material Suppliers Using Analytical Hierarchy Process in Food and Beverage Company, South Jakarta Jakfat Haekal; Herawan Setio
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3747

Abstract

The purpose of this research was to see the selection of raw material suppliers as an assessment of supplier performance. Data were obtained from the results of assessment of the experts in food and beverage company in South Jakarta. The rate selection of suppliers was based on several criteria. There was the suitability in some products with the demand for tolerance of 10% about mismatch delivery, 10% of the accuracy of the product delivery, 5% of products quality, 5% of product prices, 5% of the easiness of information or data, and 10% of the problem-solving action. The results show that 40% of suppliers get a warning letter regarding their performance from January to June 2016, 20% of suppliers have already gotten a reprimand directly from the company, 20% of suppliers have been deactivated from the list of suppliers, because they cannot meet the target value which equals to 4,05, only 20% of the supplier can maintain its performance.
An Implementation of Location Based Service (LBS) for Community Tracking Budi Yulianto; Rita Layona
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3749

Abstract

The case of lost or missing children when people go traveling or in the hustle often occurs due to lack of parental supervision. These problems can be solved using Global Position System (GPS)-based navigation technology Location Based Service (LBS). This research aimed to determine the position of members of the community (such as family) who were lost or missing by using mobile devices. Rapid Application Development (RAD) was used for system development, which comprised the step of requirement or planning, system design, development, and cutover. The result of this research is a GPS-based application that is able to display the position of members of the community, the route to the location, and the media discussion (comments). The conclusions show that the application provides an easy and useful function in finding the location of the community member, displays the route to the location, and allows the interaction in the form of communication.
Development of Online Learning System for Software Laboratory Center in Bina Nusantara University Dennise Adrianto; Marlene Martani; Danella Indriani; Risan Susanti
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3752

Abstract

The purpose of this research was to produce a learning management system that could provide teaching materials and assessment tools for studentsso that they could improve their abilities and assess themselves. Using the waterfall Software Development Life Cycle (SDLC) model, the researchers divided the development into five phases. Those were analysis, design, implementation, testing, and maintenance. Analysis phase was done by conducting interviews and observations. The designing phase used Unified Modelling Language (UML), and implementation phase used PHP language with Model View Controller (MVC) framework CodeIgniter. Then, testing used eight golden rules and questionnaire as user acceptance test. In the end, this research could produce a Learning Management System (LMS) namely Online Learning System. It can deliver materials to students in BinaNusantara University. In addition, it helps students to find additional learning materials for the programming course, monitor, and assess their learning progress through the quiz and member dashboard.
The Implementation of Massive Open Online Courses (MOOCs)-Based E-Learning System for College Level Learners Hana Silvana; Nadia Hanoum
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3754

Abstract

This research aimed to find out how the implementation of MOOCs-based e-learning system was as an attempt to provide equal access to education athigher education level in Indonesia and to describe the user profile of MOOCs based e-learning. This research used a descriptive quantitative method, and the subjects of the research were 30 MOOCs participants drawn randomly. The design of the MOOCs-based e-learning implementedhad following features. Those were a) Bahasa Indonesia content; b) responsive media interface that can be accessed from a variety of devices; c) the use of short duration video content to facilitate buffering process; d) the use of interactive multimedia content; e) the use of social learningprinciples through the feature of discussion forum; and f) the use of gamification principles through the provision of badges for participants. The results of this research indicate that MOOCs-based e-learning system has the potential to improve the equal access to higher education with severalindicators. First, the majority of participants are females. Second, the latest education of most users is high school or vocational high school. Last, most have been working as employees.
Mobile Application for Inventory Control in a Minimart Febriyanti Darnis
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3755

Abstract

The goal of the research was to design a mobile application of inventory system in a minimart. In an application of using the mobile-based inventory minimart, J2EE system development used Waterfall method with the stages of analysis, design, coding, and implementation. The control of application inventory items at the minimart was intended for mobile-based users who controlled the supply of goods on the markets. It was to facilitate employee minimart in organizing, processing, monitoring the movement of inventory items that occurred in the minimart. The application of control inventory-based mobile minimart was to make users inventory, with a menu that was available in the form of product items, a promotion that had a limited promotion item reservations. The application can make employees in a minimart organize, process, and monitor the movement of inventory item more easily.
Predicting and Analyzing the Length of Study-Time Case Study: Computer Science Students Teny Handhayani; Lely Hiryanto
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3756

Abstract

The length of study-time is one of the important issues in higher education. The goal of this research was to predict and analyze the length of studytime in the early stage of Computer Science students in X University. The research proposed Mutual Information (MI) as feature selection method and Support Vector Machine (SVM) as a classification method. There were two different sections of the experiments. The first experiment used two class targets that were grouped in ‘on time group’ and ‘late group’. The experiment result shows that the proposed method produces accuracy around 85%. The second experiment used three class targets, ‘on time group’, ‘late group’, and ‘very late group’. The experiment result of the proposed method produces accuracy around 80%. Mutual Information (MI) does not only successfully raise the accuracy but also uncovers the relationship between subjects and the class targets.
Chemical Characteristics of Pumpkin Seed Tempeh from Soybean and Pumpkin Seeds Shanti Pujilestari; Diny A. Sandrasari; Rimmaria Marida
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3757

Abstract

The aim of this research was to find the effect of the combination of soybean and pumpkin seeds on the chemical characteristics of pumpkin seed tempeh. The pumpkin seed tempeh samples were analyzed for its water, ash, protein, fat, carbohydrate and crude fiber. Meanwhile, support data were isoflavone and zinc. Sensory hedonic was conducted by 25 untrained panelists for selecting the best formulation of soybean and pumpkin seeds in tempeh. The result shows the formulation of soybean and pumpkin seeds in various combinations (100:0, 85:15, 70:30, 55:45, and 40:60). It gives a significant effect on the water, protein, fat, carbohydrate, and crude fiber. Moreover, all acceptance on pumpkin seed tempeh is on the level of α = 0,01 and α = 0,05. The best combination of soybean and pumpkin seeds is 40:60, with chemical analysis results which are water (33,7%), ash (5,31%), protein (65,65%), fat (54,57%), carbohydrate (5,94%), crude fiber (14,06%) (db), zinc (30,05 ppm), and isoflavones (42,10 mg/100g). Chemical characteristics of the selective pumpkin seed tempeh have fulfilled SNI 3144-2015 regarding water, protein and fat.
The Development of Indoor Object Recognition Tool for People with Low Vision and Blindness Rhio Sutoyo; Andry Chowanda
ComTech: Computer, Mathematics and Engineering Applications Vol. 8 No. 2 (2017): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v8i2.3763

Abstract

The purpose of this research was to develop methods and algorithms that could be applied as the underlying base for developing an object recognition tools. The method implemented in this research was initial problem identification, methods and algorithms testing and development, image database modeling, system development, and training and testing. As a result, the system can perform with 93,46% of accuracy for indoor object recognition. Even though the system achieves relatively high accuracy in recognizing objects, it is still limited to a single object detection and not able to recognize the object in real time.

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