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Jurnal Optimasi Sistem Industri
Published by Universitas Andalas
ISSN : 20884842     EISSN : 24428795     DOI : -
Core Subject : Science, Engineering,
Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Optimasi Sistem Industri (JOSI) is a peer-reviewed journal that is published periodically (April and October) by the Department of Industrial Engineering, Faculty of Engineering, Universitas Andalas, Padang.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol. 12 No. 1 (2013): Published in April 2013" : 6 Documents clear
Pengembangan Kualitas Pelayanan Produk Telekomunikasi Selular Diatas Kapal Menggunakan Metode Service Quality & Quality Function Deployment Maya Arlini Puspasari; Nia Kurniasih
Jurnal Optimasi Sistem Industri Vol. 12 No. 1 (2013): Published in April 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n1.p293-300.2013

Abstract

The need for telecommunications, including the category of primary need for the people of Indonesia, one of the important aspects that need to be considered by the telecommunications company is a technological innovation that can cover all of Indonesia to outlying places, not only telecommunications on land even when in the middle of the ocean though. With Cellular Telecommunications Company cooperation to support the availability of telemetry, then develop into the greatest benefit is the availability of the Mobile phone network for the passengers on board, to continue to innovate and deliver the best to customers, the service providers must continue to improve quality. Research conducted using the SERVQUAL method to measure the quality of service based on the five dimensions of service quality by analyzing gaps that occurs due to a mismatch between customer expectations and perceptions of the quality of service received. In this study wants and expectations of consumers translated into House of Quality in Quality Function Deployment. Results of research propose using strategy value to get priority repairs according to the company's ability
Analisis Kepuasan Konsumen Terhadap Kualitas Pelayanan dan Harga Produk pada Supermarket dengan Menggunakan Metode Importance Performance Analysis (IPA) Melfa Yola; Duwi Budianto
Jurnal Optimasi Sistem Industri Vol. 12 No. 1 (2013): Published in April 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n1.p301-309.2013

Abstract

Currently, the number of retail companies grow rapidly. This condition make high level competition between retailing in Indonesia and each of company need to have effective strategy to survive in retail business. Beside, a number of big company also take opportunity to expand retail business, not only into big size category (e.q. Hypermarket) but also into small size such as mini market. It can be big challenges for Small Medium Enterprise to handle this situation. The Objective of this paper is to explain the priority of importance factors of customer satisfaction in a supermarket, as a strategy for company to survive in retail business. Data is collected by spreading questioner to 385 respondents, and processed by using Importance-Performance Analysis (IPA) to compare between customer's expectations and company's perfomances. There are 11 factors that company must pay attention and it is shown in Cartesian Diagram
Evaluasi Kenyamanan Termal Ruang Sekolah SMA Negeri di Kota Padang Lusi Susanti; Nike Aulia
Jurnal Optimasi Sistem Industri Vol. 12 No. 1 (2013): Published in April 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n1.p310-316.2013

Abstract

This research aims to determine thermal conditions and sensation of thermal comfort in classrooms of high schools in Padang. This study was conducted in 11 State Senior High School (SMA) represented 11 districts in Padang. About 10% of total student body in each schools were participated in this study to vote thermal comfort questioners. To determine thermal comfort level in this study, PMV (Predicted mean Vote) and PPD (Predicted Percentage of dissatisfied) method were used according to standard of thermal comfort in ASHRAE 55-2005 and ISO 7730. PMV method is used to determine scope of situation in the environment that scaled from +3 for very hot until -3 for very cold, and PPD is a method to calculate the number of human (in percentage) dissatisfied with the environment. Calculated PMV and PPD were compared with PMV and PPD resulted from individual vote from questionnaires. Result showed that in general, thermal conditions in classrooms had air temperature and radiant temperature from 27oC – 30oC, air humidity from 68% - 80%, and wind speed of 0 m/s. Calculated PMV from this condition were ranging from +1 slightly warm) until +2 (warm) while PPD calculated greater than 20%. Compared with calculated PMV and PPD values, the individual vote showed values from +0,5 (neutral) until +1 (slightly warm) while PPD values of individual vote greater than 20% except for SMA 2 and SMA 11 Padang. It is concluded that improvements of indoor thermal conditions have to make inside classrooms as well as landscape outside in order to improve thermal comfort level of students during learning and teaching.
Optimalisasi Sistem Persediaan Bahan Baku Karet Mentah (Lateks) dengan Metode Lot Sizing (Studi Kasus: PT Abaisiat Raya) Dina Rahmayanti; Ahmad Fauzan
Jurnal Optimasi Sistem Industri Vol. 12 No. 1 (2013): Published in April 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n1.p317-325.2013

Abstract

PT Abaisiat Raya is one of the manufacturers of rubber crumb (crumb rubber) in the city of Padang. Latex inventory management system at PT Abaisiat Kingdom basically signinfikan still need improvement. It is based on the planning activities in the warehouse inventory of raw materials firms irregular, thus causing excess stock (over stock) at a time and shortage of stock (stock out) at other times. Process optimization is done with latex inventory system involving factors such as demand forecasting production planning or latex needs during the period of next 12 (in 2012), the costs involved, the waiting time (lead time), the implementation of forecasting methods, determination of size lots (lot sizing), the determination of safety stock (safety stock), and re-ordering time (reorder point), so the output will get a number of requests are for 12 periods ahead, the size of each reservation period, the total cost is required, when re-ordering will be done , as well as how much inventory to latex in the warehouse. Based on these results, it was found that the optimal size of the book is the same as the demand for each period (reservation is made each period) due to a cyclical pattern of demand and decreases throughout the planning period. Value of the stock or safety stock is located in Kg 114,282.20, and re-ordering time (reorder point) to cope with fluctuations do when the stock has reached a level of 333,130.95 kg.
Pengendalian Persediaan Bahan Baku Vulkanisir Ban (Studi Kasus: PT. Gunung Pulo Sari) Difana Meilani; Ryan Eka Saputra
Jurnal Optimasi Sistem Industri Vol. 12 No. 1 (2013): Published in April 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n1.p326-334.2013

Abstract

The problem of raw materials is the most fundamental issue for a manufacturing company, because the raw material is something that is very important for a production process. Companies must be able to maintain optimal raw material inventory that the production process can run smoothly so as to achieve the production target set by the company and can meet the demand of consumers. PT. Gunung Pulo Sari is one of the manufacturing company engaged in tire retreading. Here there are two types of main raw material of the tire retreading process is the rubber cold rare steak to cook and cook to cook hot rubber. PT. Gunung Sari Pulo do not meet the criteria of good inventory management. So far the company in order raw materials only based on estimates only. We conducted this study in order PT. Gunung Sari Pulo can manage them inventory system by finding the optimum safety stock, determine the total cost of the minimum size of the buyer to use the dynamic method, and the reorder point. Based on the research that has been done then the obtained value of safety stock is 18 units, the total minimum cost is Rp. Rp. 133 991 672, and reordering time (Reorder point) is 93 units.
Antara Desain Dan Product-Service Systems: Suatu Tinjauan Literatur Berry Yuliandra; Agus Sutanto; Rika Ampuh Hadiguna
Jurnal Optimasi Sistem Industri Vol. 12 No. 1 (2013): Published in April 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n1.p335-342.2013

Abstract

Persaingan bisnis global yang semakin ketat telah menyebabkan terjadinya pergeseran paradigma bisnis dari product-oriented menjadi penyediaan solusi yang memuaskan kebutuhan konsumen. Hal ini telah mendorong kemunculan konsep Product-Service Systems (PSS). Tulisan ini bertujuan untuk membahas hubungan antara konsep desain dan PSS berdasarkan literatur yang tersedia. Berdasarkan kajian yang dilakukan terhadap berbagai literatur tersebut dapat diambil kesimpulan bahwa PSS merupakan konsep yang diyakini sebagai jalan menuju sustainability melalui integrasi antara produk dan jasa dalam penyediaan solusi yang memenuhi kebutuhan spesifik konsumen. Proses desain PSS perlu memperhatikan kebutuhan konsumen dan stakeholder yang terkait melalui penggunaan metode dan pendekatan yang mampu mengintegrasikan pengembangan produk dan jasa dalam perspektif waktu yang sama.Evaluasi untuk mendukung keberhasilan implementasi PSS dapat dilakukan berdasarkan aspek sustainability, life cycle cost maupun berdasarkan perspektif konsumen dan penyedia.

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