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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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Teknik Sampling Snowball dalam Penelitian Lapangan Nina Nurdiani
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.
Pemanfaatan Data Warehouse pada Institusi Pemerintahan Rudy Rudy
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.v3i1.2428

Abstract

Data warehouse has a very important role in assisting of decision making, where the data warehouse became the core. Data in the data warehouse provide valuable information for its users. By using data warehouse, governance institutions can conduct data analyzes in order to build new strategies to make benefits for all stakeholders. This paper discusses about the design of data warehouse in Balai Besar Riset Sosial Ekonomi dan Kelautan. Data warehouse design using dimensional model approach introduced by Kimball. The information required by management at Balai Besar Riset Sosial Ekonimi dan Kelautan are divided into three groups: income, consumption and commerce. With the data warehouse organizations can easily perform analyses and generate reports, which can be viewed from various scopes, including time, region, fishermen and fisheries.
Pengembangan Sistem Manajemen dan Analisis Key Performance Indicator “Smart Kpi” Berbasis Web Meiliana Meiliana; Bryan Bryan; Felix Joshua; Raymond Raymond
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.v5i2.2429

Abstract

The goals of organization or company are achieved by the given objectives of all the employees. In order to measure the achievement of the employees, the organization or company can use Key Performance Indicator (KPI). However, most of the application of KPI is done manually, for example in inputting scores, result submission, score checking, and report creation. Seeing this condition, an application called “Smart KPI” is developed to provide an effective and efficient KPI System, to provide the valid KPI data to assist the monitoring of employees performance, and to create the organizational structure by relating the supervisor with the subordinate. This application is developed using Scrum research method that consists of backlog and sprint. The backlog consists of literature studies, comparing previous research or product, distributing questionnaires, and interviewing IT experts. Sprint consists of sprint and release planning and actual sprint work. The result is a PHP based web application for KPI processing for an organization or company that depends on the structure of users and indicators that have been set in the back-end and apply the settings and process the KPI in the front-end. The conclusion that obtained is this application will help the KPI processing which match the user requirement and has a good user interface and performance.
Penentuan Daya Cerna Protein In Vitro Ikan Bawal (Colossoma Macropomum) pada Umur Panen Berbeda Dede Saputra
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.v5i2.2430

Abstract

Digestibility is part of the sample consumed and not released into the feces. This study discusses about the protein digestibility of tambaqui fish (Colossoma macropomum) at different ages and sizes in vitro. Protein digestibility is the ability of the organisms to break down proteins into simple molecular compounds. At the initial stage, all samples used were dried, then distilled water at pH 8 added, and later the mixture was homogenized for three minutes. After the mixture was homogeneous, enzymes and distilled water were added. Samples were then centrifuged and the absorbance of the sample was measured using absorption spectrophotometry. The results obtained during the observations showed that the digestibility of proteins in the casein showed a value of 100%, small pomfret fish for 28.37%, pomfret fish at 58.42%, and large pomfret fish amount to 88.39%. This shows the larger size of the fish, then the digestibility of protein will be higher. In addition, the lower the pH, the protein digestibility will be higher for hydrolysis of proteins requires an acidic environment of pH conditions.
Aplikasi Edukasi “Music Traditional Arcade” Berbasis Android David David; Andiny Rucitra; Fibriyenti Fibriyenti; Anthonio Anthonio
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.v5i2.2431

Abstract

The purpose of this study is to assist the government in introducing traditional music instruments in Indonesia to the community, especially teenagers aged from 16-20 years. Given increasingly in modern era makes people start to forget traditional music instruments and prefers modern music instruments. The method used in this research is literature study, observation, application design, and application testing that has been made. Result obtained from this study is an application that can meet the objectives of the study. The conclusion of this study is that the application gave elements and information about some traditional music instruments in interesting ways through mobile app game followed with attractive appearance and could be one way of helping the government to preserve traditional music instruments and provide insight into knowledge through the history of the instrument.
Perancangan Knowledge Management System menggunakan Tools "Book Review": Studi Kasus pada Universitas Bina Nusantara Karto Iskandar
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.v5i2.2432

Abstract

The role of knowledge in developing and maintaining an organization has been strongly regarded as a very important asset. Bina Nusantara University is one of the universities that is aware of the importance of book as main knowledge media in the learning process. Reviewing books and sharing the results can be a major resource to perform maintenance on knowledge and accelerate the learning process. A problem that occurs in Bina Nusantara University is no application to do Book Reviews. There are no tools that facilitate discussion between book reviewer and book review reader. The purpose of this research is to design features of Book Review on Knowledge Management System (KMS) in Bina Nusantara University. It is expected that book review features are useful for faculty members and staffs in doing book reviews. The methodology used in this study is literature study and design a KMS application using Microsoft SharePoint 2010 technology. Conclusion of this research is the application of KMS Book Review in Bina Nusantara University can encourage book reviewers and facilitate book review readers to discuss and interact more optimally.
Analisis Kebutuhan Sistem Akreditasi Rumah Sakit di Indonesia dengan Metode Six Sigma Diyurman Gea; Sharon Jesica
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.v5i2.2433

Abstract

This study aims to create a system that can support the implementation of the accreditation of the Hospital (RS) in Indonesia. Successful implementation of hospital accreditation in Indonesia is still far from the target that has been set, this is due to the geographical location factors and the limited availability of infrastructure. For successful implementation of this accreditation, it must be supported by a web-based application, which can be accessed by interested parties, such as the manager of the hospital, Surveyor, Commission on Hospital Accreditation Secretariat (KARS) and people who want to see the results of hospital accreditation. The proposed system is a system design that is capable of storing transaction data assessment, in accordance with the standards of the assessment element KARS. Documenting assessment can be made online or offline through the use of an excel file with a standardized format. Monitoring the implementation of accreditation can be determined quickly and accurately through the system reports. To find out the needs of the system, in-depth study conducted through interview techniques, analysis of documents and procedures that are running, as well as through discussion forums with the management team Surveryor KARS and Accreditation System. The data collected will be analyzed dengen Six Sigma method. The design of the system is described in the form of a data flow diagram, activity diagram and design Entity Relation Diagram (ERD). The proposed system will have an impact on improving the cost efficiency of infrastructure, data integration, accessibility and ease of monitoring the implementation of accreditation as well as guarantee the availability of data. 
Analisis dan Perancangan Sistem Informasi Direktorat Research & Technology Transfer Binus University Mahenda Metta Surya; Albert Wongso; Richard Richard
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.v5i2.2434

Abstract

Rapid growth of information technology development as well as increasing level of competition make every company need to establish an information system to support its business process. Research & Technology Transfer Directorate of Binus University is aware of this matter and makes a goal to improve the existing business process and develop a web-based information system that is able to support the existing business process to be more effective and efficient. This study aims to conduct an analysis and a design of information system for Research & Technology Transfer Directorate Binus University that can enhance the existing business process. Research used two methods, firstly data gathering done by conducting field studies and literature reviews, secondly the analysis and design of the system with object-oriented method. The result achieved from this research is a web-based information system that can support Research & Technology Transfer Directorate business process. The conclusion of this research is a new integrated web-based information system that can support and enhance current business process by connecting all parts of the system with the result to make all process more effective and efficient.
Pemodelan Tingkat Penghunian Kamar Hotel di Kendari dengan Transformasi Wavelet Kontinu dan Partial Least Squares Margaretha Ohyver; Herena Pudjihastuti
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.v5i2.2435

Abstract

Multicollinearity and outliers are the common problems when estimating regression model.   Multicollinearitiy occurs when there are high correlations among predictor variables, leading to difficulties in separating the effects of each independent variable on the response variable. While, if outliers are present in the data to be analyzed, then the assumption of normality in the regression will be violated and the results of the analysis may be incorrect or misleading. Both of these cases occurred in the data on room occupancy rate of hotels in Kendari. The purpose of this study is to find a model for the data that is free of multicollinearity and outliers and to determine the factors that affect the level of room occupancy hotels in Kendari. The method used is Continuous Wavelet Transformation and Partial Least Squares. The result of this research is a regression model that is free of multicollinearity and a  pattern of data that resolved the present of outliers.
Perancangan Customer Knowledge Management pada PT Pandawa Maju Perkasa Joni Suhartono; Caleb Kosashi
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.v5i2.2436

Abstract

In the era of global trade, more countries want a quality of product with optimal price. PT Pandawa Maju Perkasa engaged in export trade services requires an application that can bridge the communication between the customer and the company. It can also create appropriate knowledge to present the product to the customer. Knowledge of the product obtained will be shared to the customer as company's marketing activities. In addition, critics and suggestions are very necessary for the improvement of customer service of the company. Research in this study was done by analyzing business process, designing model of knowledge management system, and designing system model. The design of the system made consisted of making class diagrams, use case diagrams, sequence diagrams, and user interface. The design of the CKM system will help the company capture customer demand for the goods they want, the communication between the customer and the company can be well established, critics and suggestions facility made is used to improve services to customers. 

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