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Harijanto Pangestu
Bina Nusantara University
Computer Science & IT Engineering Mathematics

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Hasil Rancang Bangun Sistem ERP dengan SDLC Model Waterfall: Studi Kasus Sistem Inventori PT Pan Brothers, Tbk. Harijanto Pangestu; Hendra Alianto; Santo F. Wijaya
ComTech: Computer, Mathematics and Engineering Applications Vol. 3 No. 2 (2012): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v3i2.2360

Abstract

Competition in the business world effects the use of information technology. To achieve competitive advantage in the global competition, PT Pan Brothers, Tbk. should establish an integrated information system based on ERP (Enterprise Resource Planning). With the ERP system, information will be accurate and up-todate to support strategic decision making. It takes conscientious planning in building the ERP system. Management information systems development projects have a very important role. One determining component is how to choose and use appropriate information systems development method. SDLC (system development life cycle) is growing very rapidly along with the development of information technology. It is necessary to choose the right SDLC in building an integrated system based on ERP. Each SDLC models has advantages and disadvantages. SDLC models will only be optimal if used according to the situation and conditions. Waterfall model provides clear deliverables and milestones, good documentation, easy to understand, easy to implement, emphasizes on good procedural workmanship (precoding design). Some of its weaknesses are difficult to integrate risk management, high cost change documents, high administrative costs, often late completion thus.To avoid them, there should be a well-planned project management and steps properly so it can be on time and will not exceed budget.
Model Perencanaan Strategi Bisnis Dan Teknologi Informasi Pada Perusahaan Penyewaan Vcd/Dvd Harijanto Pangestu
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.v1i2.2372

Abstract

In a tighter business competition, company in original VCD/DVD rental needs strategic planning system and information technology to win the competition. In order to fulfill the information, the company is doing the system analysis and information technology, and also suggesting a plan to system developing and company’s information technology. The research method is doing literature study, field research, and analysis method and system planning and strategic information technology based on the method by Tozer. The expected result is through strategic system planning and information technology, the company could choose the exact strategy in solving internal problems. 
Pemanfaatan Aplikasi E-Marketing Pada PT Jeah Untuk Memenangkan Persaingan Usaha Harijanto Pangestu; Johan Johan; Erick Wirawan; Antonius Andri Widjaja; Hendra Hendra
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.v1i2.2398

Abstract

The purpose of this research is to design a system that could give information to customers about the provided product and also as the order media. The research method used is based on the principle of The Seven Stages of Internet Marketing to create e-marketing application, also library research, field research, analysis and designing methodology by doing survey to PT JEAH and analyzing the result. So far, the transaction process of PT JEAH is done through manual that is customer came to the store to do purchase transaction. After the e-marketing application is done, it is hoped that could give better service to customers. E-marketing concept in this system will increase efficiency and affectivity especially into order process and product information to community. Based on the research, it is concluded that with this e-marketing application as the center information and purchase media, it is hoped that the company could get loyalty from the customers and gather new market in online users. 
Penerapan Metode GOMS untuk Evaluasi Perangkat Lunak Pemodelan Visual Berbasis Open Source Harijanto Pangestu
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.v3i1.2418

Abstract

Software evaluation is needed to determine the usability level of the software. Good usability is having the following characteristics: effective to use (effectiveness), efficient to use (efficiency), safe to use (safety), having good utility (utility), easy to learn (learnability) and easy to remember how to use (memorability). Analytical evaluation is one evaluation approach that does not involve users. The evaluation is conducted by experts associated with the product. One method used in the analytical evaluation is GOMS, a method to analyze a task related to human computer interaction. GOMS does not provide accurate calculation of how users interact with the system, yet it estimates the time need to do a task dealing with the system. With the evaluation of UML users are expected to be able to use UML tools that appropriate to particular needs based on open source.
Model Perancangan Sistem Pemesanan Tiket Bus Antar Kota Antar Propinsi Khusus di Cabang Harijanto Pangestu
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.v4i1.2739

Abstract

At certain moments, especially on national holiday transportation users greatly increase. The manual ticket booking system of inter-city buses is not very effective and efficient as indicated that it takes long time to book tickets and find information about ticket availability for a specific purpose on a certain day. Besides, inaccuracies often happen on synchronizing ticket availability with seat availability. Due to those problems, it needs to be made a model of ticketing information system of inter-city buses. The initial phase focused on booking tickets at a branch office. The next stage of development is integrating the  information system of all branch offices to the central office. The purpose of this paper is to create a model of the system design if inter-city bus ticket reservation in inter-provincial branches can provide convenience for the branch to book tickets booked by customers. The methodology used in this research is a preliminary study by library research, followed by analysis on running systems through survey findings, then identification of information needs. From the results of this study it is found that a more specific design and implementation are expected to be made so as to provide more benefits to its users. The results of this study can be further developed and integrated with the central office.
Model Evaluasi Perangkat Lunak: Pemodelan Visual Berbasis Open Source Harijanto Pangestu
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.v2i2.2843

Abstract

Visual modeling softwares are numerously available based on both open source and proprietary. However, the softwares are not easy to use and tools available are so confusing for users. Therefore, the evaluation model is needed to choose the proper software. The purpose of this study is to create a model to evaluate the visual modeling software from the user interface and usability. Studied softwares are open source-based because they can be obtained easily for free. The softwares are Umleditor, Umlpad, Violet UML editor, ArgoUML, HE, StarUML, UMLet, Winbrello. This evaluation model is also able to evaluate other softwares. This evaluation uses DECIDE framework which is a guiding framework for evaluation. Evaluation approaches and techniques used are GOMS approach. The final results of this study is an evaluation model that provides software recommendations, namely UMLet 9.1 as well as one which has good usability, like effectiveness, safety, good utility, learnability, memorability, although for efficiency it gets the second place compared to DIA. 
Co-Authors Antonius Andri Widjaja Erick Wirawan Hendra Hendra I Gusti Ngurah Antaryama Johan Johan Santo F. Wijaya