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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 34 Documents
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Search results for , issue "Vol. 3 No. 2 (2012): ComTech" : 34 Documents clear
Studi Mekanisme Kinetik dengan Parametrik Camshaft pada Selubung Bangunan Adaptif Firza Utama Sjarifudin
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.v3i2.2337

Abstract

Adaptation is essential to manage the problem of climate change. In order to meet the challenge, this paper proposes an adaptive building envelope system that can optimize its configuration by responding environmental changes to achieve new levels of sustainable performance and energy efficiency. Most current adaptive building envelope uses kinetic techniques make its formation transformable. However, the use of kinetic components such as a large amount of interactive motorized system that requires electrical power may alsocause further decrease the building energy efficiency. This paper proposes a camshaft mechanism system for adaptive building envelope that uses less motors, controllers, and sensors. This system uses pre-programmed analysis data of daily solar radiation changes to parametrically drive the number of rotation phase and length of nose (Lobe Lift) that generates the shape of camshaft. The camshaft then controls the values of opening and closing of the building envelope components. The advantages of this system are less energy consumption, less maintenance and lower cost since it uses fewer motors, controllers and wiring. In conclusion, this paper has developed a prototypical tool that facilitates a new approach to energy-efficient kinetic buildings.
Model Kemitraan dalam Pembangunan Rumah Sewa Swadaya Sigit Wijaksono
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.v3i2.2353

Abstract

The high prices of land causes the decreasing development of rental housing around activity centers such as workplaces, schools and others. The specific objective of this study is to identify and map the forms of existing partnerships between government, business, and community organizations in the construction of rental housing, to identify obstacles in the implementation and effectiveness of these partnerships, and to develop a partnership model that can include and involve all interests (stakeholders) either from the government (central or local), businesses, and communities, as well as their respective roles in realizing the construction of rental housing for low income community. This study implements is a qualitative method with exploratory descriptive and comparative approach. Data are obtained through surveys in several locations as representatives of existing forms of self-help construction of rental housing in Jakarta, West Java and Batam. Data collection technique used observation and interviews are supported by direct observation in the field. The model developed is aimedat promoting self-help development of affordable rental housing which involves a partnership among government, business, and society. The partnership should be beneficial to all three parties. It should also allow affordability of low-income community to rent the house in the form of licensing component funded by national and local government, construction financed by the business or government, while the land acquisition component can use the land the community or local government.
Analisis dan Perancangan Basis Data dan Aplikasi Pegadaian pada PT Langitan Segi Putera Diana Diana
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.v3i2.2355

Abstract

This article contains analysis and design of pawnshop database systems and its application design that can be used by PT Langitan Segi Putera for acquiring information about pawn goods, decision making in pawnshop system, how to increase the effectiveness and efficiency of employee performance as well as how to reduce error in data input. The methodology used in this research consists of literature study, survey, and analysis and design. The result obtained is a conceptual, logical and physical database design for pawn process in PT Langitan Segi Putera and its application that is suitable with the design. The design of database and its application meets the company requirement and improves company performance due to the availability of accurate and timely information, improvement in data security, and reduction of data redundancy.
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.

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