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ComTech: Computer, Mathematics and Engineering Applications
ISSN : 20871244     EISSN : 2476907X     DOI : -
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.
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Articles 62 Documents
Search results for , issue "Vol. 2 No. 1 (2011): ComTech" : 62 Documents clear
Implementasi Data Warehouse dan Data Mining: Studi Kasus Analisis Peminatan Studi Siswa Eka Miranda
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.v2i1.2705

Abstract

This paper discusses the implementation of data mining and their role in helping decision-making related to students’ specialization program selection. Currently, the university uses a database to store records of transactions which can not directly be used to assist analysis and decision making. Based on these issues then made the data warehouse design used to store large amounts of data and also has the potential to gain new data distribution perspectives and allows to answer the ad hoc question as well as to perform data analysis. The method used consists of: record analysis related to students’ academic achievement, designing data warehouse and data mining. The paper’s results are in a form of data warehouse and data mining design and its implementation with the classification techniques and association rules. From these results can be seen the students’ tendency and pattern background in choosing the specialization, to help them make decisions. 
Implementasi Sistem Informasi Ujian Irma Irawati Ibrahim
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.v2i1.2706

Abstract

Examination is extremely critical in educational institutions as it is used as an indicator of student’s learning quality achievement. Usually, there are two types of exams – Mid-Term and Final exams.The exam process consists of 3 processes, namely exam preparation, the exam itself, and grading submission. The control process, confidentiality, and efficiency are the main focus in examination improvement. Therefore, to provide the best solution for any potential problems, the researcher comprehensively conducted interviews, field study, problem identification, and analysis. The researcher chooses the Plan-Do-Act-Check method to ensure the best solution. Finally, cost-benefit analysis was run to measure the success of the system implementation. There are two types of benefit, tangible and intangible. This project resulted in a new exam flow procedure, exam information system, and cost-benefit analysis. 
Implementasi Jaringan Syaraf Tiruan Recurrent Menggunakan Gradient Descent Adaptive Learning Rate and Momentum Untuk Pendugaan Curah Hujan Afan Galih Salman; Yen Lina Prasetio
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.v2i1.2707

Abstract

The artificial neural network (ANN) technology in rainfall prediction can be done using the learning approach. The ANN prediction accuracy is measured by the determination coefficient (R2) and root mean square error (RMSE). This research implements Elman’s Recurrent ANN which is heuristically optimized based on el-nino southern oscilation (ENSO) variables: wind, southern oscillation index (SOI), sea surface temperatur (SST) dan outgoing long wave radiation (OLR) to forecast regional monthly rainfall in Bongan Bali. The heuristic learning optimization done is basically a performance development of standard gradient descent learning algorithm into training algorithms: gradient descent momentum and adaptive learning rate. The patterns of input data affect the performance of Recurrent Elman neural network in estimation process. The first data group that is 75% training data and 25% testing data produce the maximum R2 leap 74,6% while the second data group that is 50% training data and 50% testing data produce the maximum R2 leap 49,8%.
Penggabungan Konsep Web 2.0 dan Mashup dalam Pembuatan Situs Dinas Kebudayaan dan Pariwisata Provinsi DKI Jakarta Bayu Kanigoro; Jurike V Moniaga; Rhezandra Priatama; Konrad Bangun Pratomo; Dimas Eko Adityo
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.v2i1.2709

Abstract

This study aims to design a website of the Jakarta regional office of Culture and Tourism by combining the concept of web 2.0 and mashup. This concept combines several APIs (Application Programming Interface) into a new application. The APIs used are Facebook, Google Maps, Twitter, and Yahoo Weather. The created site applies the latest technology and advanced multimedia elements. With the combination of all elements above, a more interactive and dynamic site is succesfully obtained. 
Peran Serta Strategi Sistem Informasi Terhadap Keberhasilan Penerapan Teknologi Informasi Perusahaan Tanty Oktavia
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.v2i1.2710

Abstract

The role and strategy of information sytems in all business sectors that exist at present have a very important priority for the company. This is inevitable because the information system has become an important part in the continuity of a company. Perhaps without the information system, the company’s operations will not be able to work properly because various sectors/divisions rely on business automation process. Planning strategy in an enterprise information system aims to enable companies to determine appropriate strategies in the information system implementation. Setting the information system and information technology strategically needs a way to understand the role of information technology on an organization. Most organizations will not hesitate to review the investment in information technology that has been done because the success of a company is also determined by the application of information systems. Evaluation of experience, success, and failure of the previous application is an important aspect in management strategy.
Perancangan Sistem Perangkat Ajar Komputer Berbasis Multimedia Studi Kasus di SD Dian Kasih Nilo Legowo; Elidjen Elidjen; Hioe Jefry; Ferry Yangga
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.v2i1.2713

Abstract

A teaching device is made to assist teaching and learning process in Dian Kasih Primary School with materials that match the school curriculum. Thus, children are able to understand the material presented better and be attracted more in using computer technology. The method used is an analysis which includes literature study, verbal interviews, questionnaires distribution and analysis. Meanwhile, the design method is done using the Waterfall model by following steps of multimedia software development. From the research results it can be concluded that the device helps with the learning system in Dian Kasih Primary School, helps students to understand the material presented by teachers more easily, provides interactive views, and be relatively easy to use. 
Pengembangan Sistem Informasi Akuntansi PT. Surya Warfa Kharisma Studi Kasus: Penjulan, Piutang, dan Penerimaan Kas Suparto Darudiato; Effie Cendana Sari
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.v2i1.2714

Abstract

To increase sales, the management and sales department requires accurate, relevant and up-to-date information to support its function. Currently the amount of outstanding accounts receivables becomes one of the obstacles. So, credit limits criteria are applied as one of the effort to emphasis the outstanding receivables. Surely it will have an impact on increasing the effectiveness and efficiency of operations and ultimately will enhance the competitiveness. This research was done in three stages, data collection, analyzing the system requirements of current system to synergy with company’s target, and the results of needs analysis are developed into a new accounting information system with object-oriented approach and UML diagrams. 
Managing and Delivering Information Technology Value Yuliana Lisanti
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.v2i1.2715

Abstract

Investment Information Technology (IT) has always been a primary objective of the business which is expected to provide value to businesses through its role as a competitive advantage and the creation of innovation. However, it is ot easy to measure how much value is successfully created, or determine whether the IT strategy is aligned with business strategy, or find out if the IT organization has a strategy that focuses on creating business value. Innovation Value of Institute (IVI) introduces a new concept known as the IT Capability Maturity Framework (IT-CMF) which can help IT organizations to align the business vision with the IT vision so that IT strategy could focus on value creation . the IT-CMF implementation which begins with the assessment of the maturity of IT organization can provide an overall picture, so that organization can prioritize the development of appropriate IT investments to support the value creation for the overall business. 
Aplikasi Piranti Lunak Penganalisis Sintaksis Kalimat Bahasa Indonesia Sablin Yusuf
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.v2i1.2716

Abstract

Indonesian has a vast variety in structures and sentence types that brings about difficulty in using the language correctly and accurately. This research aims for producing a software application for syntax analysis and error checking for Indonesian sentences. The method used in developing the application is rapid prototyping method which consists of several phases: system requirement analysis, design, coding, implementation and evaluation while the method used in syntax analysis process is regular expression and predictive parsing method. Despite some existing limitations, the application produced is able to check the syntax error of various Indonesian sentence types. 
Model Bisnis Dan Antarmuka Pelanggan E-Commerce Pada PT. SMG Rudy Rudy; Anita P. W.; Anita O.; Octaffany Octaffany
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.v2i1.2717

Abstract

PT. SMG is a company which sells music and movies product in CDs, VCDs and DVDs. PT. SMG relies its business on direct selling through its outlets. PT. SMG needs a solution to facilitate the customers’ needs in getting product information and online transactions. E-commerce can be use to develop business and provide an alternative solution to customers on how to transact and obtain product information from PT. SMG using the internet. The objective of this study is to design a business model and customer interface of e-commerce website for PT. SMG. The methodology uses e-commerce business model and customer interface design by Rayport and Jaworski. The website interface design uses a 7C framework approach: Context, Content, Communication, Commerce, Connection, Community and Customization. The result achieved is an e-commerce website that helps sales system and enhances the company competitiveness. The conclusions obtained are that PT. SMG can take advantage of e-commerce to support their sales system and the business model online for PT. SMG is the widest-assortment model. 

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