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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.
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Search results for , issue "Vol. 13 No. 2 (2014): Published in October 2014" : 10 Documents clear
Perencanaan Sistem Persediaan Bahan Baku Industri Garmen di PT. DM Nunung Nurhasanah; Syarif Hidayat; Ajeng Putri Listianingsih; Devi Utami Agustini; Faikar Zakky Haidar; Nida'ul Hasanati
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (626.871 KB) | DOI: 10.25077/josi.v13.n2.p589-617.2014

Abstract

One of the effort to presence with global competition in the era of the Asean Economic Community (AEC) in 2015, making it the various parties, both government, private, and Small and Medium Industries (SMEs) to compete with products made in ASEAN countries. One of the things that can be done is to make the efficiency of the production costs. For that, we need a production planning and control are very closely related to the raw material. The presence of raw materials becomes important because if there is a shortage of raw materials, will inhibit the production process. If the stock overload can make an effect on the cost savings that can increase the cost of the company. IKM DM is one of the industry that concerned to the manufacture of clothing garment, especially to the shorts. The Problems that are often faced by SMEs is the frequent occurrence both in the warehouse overstock raw materials and finished goods warehouse. It is necessary for research in determining the amount of raw materials in the warehouse, so that capital is not held long. This study only focus to three kinds of pants that has all size model, big size type, and type pants buckle. The purpose of this study is predicting the number of requests using the ARIMA period of 3 months in April, May, and June 2014; planned economic order quantity and raw material ordering schedule using the EOQ method. The study also discusses the raw materials inventory system either periodically or in a perpetual; and ends with the calculation of the limitations of the warehouse. Forecasting pants all size in April, May and June respectively 30 840, 31 962, and 32 357 pieces; the big size pants are 8.645,8.782, and 8782; and the buckle pants are 4,960, 4,980, and 4,980 pieces. As for the number of ordering raw materials at economical polly cloth pants all size, buckle, and the big size of 45 562-yard; 17 684; and 25 534 yards. As for the scheduling of raw materials in the all size type, big size type, and the buckles have ROP values of 4.470,1.382, and 660 yards. The frequency ordering as many as 6 times, 3 times, and 2 times with intervals of 30 days, 64 days, and 80 days. From the calculation of the inventory system, obtained perpetual method has the smallest cost. For the calculation of the limitations vast storehouse of raw materials needed 4 shelves for storage of accessories with a total area of 107m2, with a total of 144m2 warehouse area.
Integrasi Quality Function Deployment (QFD) dan Conjoint Analysis untuk Mengetahui Preferensi Konsumen Desrina Yusi Irawati; Moses Laksono Singgih; Bambang Syarudin
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p618-640.2014

Abstract

The advantages of QFD is to translate customer need into a technical response. But QFD has some disadvantages related to the difficulties in distinguishing the difference of needs between consumers, difficulties to fulfill the needs of different consumer groups, and the exietence of conceptual gap between consumers and companies. The proposed method to overcome these disadvantages is conjoint analysis. The main advantage of conjoint analysis is the ability to get the optimal design combination for products or services based on consumers' preference. The result of conjoint analysis, estimation of perceived value, and integration of QFD can be used to know the preference market needs among consumers, identify the office desk, determine consumer segments and technical respons, and estimate the additional price of office desk attributes as an effort to the development of the office desk. In overall the best Office desk combination results based on consumers' preference of Office desk is the white color without additional drawers or supporting features, with table size is 120x60x75 cm and footstool. Segmentation based on preferences resulting in three clusters, namely size, color, and availability of drawer. The highest technical response to be the company's priority in meeting the needs of consumers is to make the proper hole connection. Based on the perceived value, the company is capable to predict that the additional prices of 1 drawer is Rp.1-Rp.500.000, the addition price of 2 drawers is Rp.800,000 - Rp.900.000, and the addition price of the foundation of the foot is Rp.50.000 - Rp.150.000, and the additional price of supporting features is Rp.150.000-Rp.250.000.Keywords: Quality Function Deployment (QFD), conjoint analysis, segmentation and perceived value.AbstrakKeunggulan QFD adalah menterjemahkan customer need menjadi respon teknis. Namun QFD mempunyai kekurangan terkait sulit membedakan antara beragam kebutuhan konsumen yang bertentangan, sulit memenuhi kebutuhan konsumen yang berbeda kelompok, dan kesenjangan konseptual antara konsumen dan perusahaan. Untuk melengkapi kekurangan QFD, diusulkan metode conjoint analysis. Keunggulan utama conjoint analysis mampu mendapatkan kombinasi desain yang optimal untuk produk yang melekat pada preferensi konsumen. Hasil integrasi QFD dan conjoint analysis serta estimasi perceived value dapat mengetahui preferensi konsumen meja kantor, mengidentifikasi segmen konsumen meja kantor, menentukan respon teknis, dan mengestimasi harga penambahan atribut meja kantor sebagai upaya pengembangan meja kantor. Secara keseluruhan hasil kombinasi meja kantor terbaik berdasarkan preferensi konsumen meja kantor adalah warna putih, tidak membutuhkan penambahan fitur laci, tidak membutuhkan penambahan fitur pendukung, ukuran meja 120x60x75 cm, dan terdapat tumpuan kaki. Berdasarkan segmentasi preferensi terbentuk tiga klaster, yaitu klaster warna, klaster ukuran, dan klaster ketersediaan laci. Secara keseluruhan respon teknis yang menjadi prioritas perusahaan untuk memenuhi kebutuhan konsumen adalah pembuatan lubang sambungan yang tepat. Berdasarkan hasil perceived value, perusahaan dapat memperkirakan harga penambahan 1 laci berkisar Rp.1 - Rp.500.000, penambahan 2 laci adalah Rp. 800.000 – Rp. 900.000, penambahan tumpuan kaki Rp. 50.000 – Rp. 150.000, dan penambahan fitur pendukung Rp. 150.000-Rp. 250.000.
Strategi Peningkatan Daya Saing Usaha Kecil dan Menengah (UKM) Berbasis Kaizen Andi Suranta Meliala; Nazaruddin Matondang; Rahmi M Sari
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p641-664.2014

Abstract

The economy was one factor the progress of a country. Each country competing to increase the productivity of the economy. Indonesia's economy ranks 17 world. Economic growth in Indonesia is very significant that was not separated from the role of small and medium enterprises (SMEs) that support the growth of exports and imports, one that can be seeded SMEs are SMEs manufacture of shoes. The role of SMEs that are so large and significant must always be maintained and developed to be able to compete in an era of global competition such as the implementation of the Asean Economic Community (AEC) in January 2015. Problems that interfere with the development and productivity of SMEs shoes, particularly around Medan city will be divided into 4 categories, namely: (1) human, (2) process, (3) facilities, and (4) Business competition. Based on this research, it is known that the most important issues that affect the development of SMEs in Medan shoe is its human resources. Solving these problems will be done with the Kaizen strategy (5S) which will be combined with the concept of training within industry (TWI) and the concept of P-Course. These improvements will result in strategies to increase the overall productivity of SMEs working with the primary focus is working and will evaluate the system works. This strategy is expected to fix the weaknesses of existing SMEs shoes, in order to face the global competition that will come.
Pengendalian Persediaan Pozzolan di PT Semen Padang Prima Fithri; Annise Sindikia
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p665-686.2014

Abstract

Inventory of raw materials is the most important thing to produce the product. Inventory control of the raw materials quantityalso refers to the production process at the factory. PT Semen Padang used raw materials including cement manufacture clay, limestone, silica, gypsum, pozzolan and sand iron or copper slag. Among the raw materials, the most used is pozzolan. This research will be carried out data processing for inventory control using the EOQ (Economic Order Quantity) and POQ (Periodic Order Quantity) to compare with inventory control has been implemented by the company. The data collected for this study include data processing is the use of historical data pozzolan material per period in 2012 and 2013, the cost of raw materials ordering pozzolan, pozzolan storage costs of raw materials and lead time, acceptance of pozzolan from suppliers to storage. Data processing is performed to determine the inventory control of raw materials sand pozzolan in 2014. The results and conclusions obtained are forecasting the use of pozzolan in 2014 is 1.135.355,77 tons it means will be more than in previous years and the inventory control with POQ (Periodic Order Quantity) produces the minimum inventory costs with price Rp 1.775.179.959,61.
Analisis Hubungan Bauran Pemasaran terhadap Keputusan Pembelian Smartphone Blackberry dan Samsung Android Alizar Hasan; Yumi Meuthia; Berry Yuliandra; Indah Desfita
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p687-706.2014

Abstract

echnological developments lead to the entire company continues to enhance innovation in creating products derived from it, including the telephone industry.In a few years, the telephone industry introduced a variety of smartphone, including smartphones based on operating system RIM (Research in Motion) which produces branded Blackberry and smartphone based Android operating system with one of the companies that have joined with the operating system is Samsung Android. The research was conducted by measuring the consumer based marketing mix and should be able to explain what factors areas sociated with the sale of the two smartphones. Marketing mixis a set ofmarketing toolsused by companies to continuously achieve their marketing goals. The marketing tools are classified into four groups namely known 4Ps: product, price, place, and promotion. This research was conducted by distributing questionnaires to the respondents as many as 160 pieces and 160 pieces of Blackberry smartphones to the Samsung Android smartphone respondents. Tests performed with Kendall Tau correlation test using SPSS 15 software. The results showed that the variables of product, price and promotion has a significant correlation to the consumer buying decision on Blackberry smartphones. However, variable rates become very dominant variables related to consumer purchasing decisions for Blackberry smartphones. Meanwhile the Kendall Tau correlation test on the Samsung Android smartphones, only products have a price and a significant correlation on consumer purchasing decisions against Samsung's Android smartphones, and variable products become a dominant variables related to consumer purchasing decisions. Thus it can be done by both companies marketing strategies in order to achieve sales targets and products in accordance with marketing objectives.
Rancang Bangun Sistem Informasi Logistik Rachmad Hidayat
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p707-724.2014

Abstract

The purpose of this study to design a logistics management information system, which is able to overcome the problem of delay in sending information data items. This information system is designed to be easier to manage enterprise data, and makes all job become more effective and efficient. One of the conveniences one would be given through this information system is in search for an information about an item because all the data items will be recorded for inclusion into the database so that the information search an item will be easy and fast.
Cloud Manufacturing: Tinjauan Literatur dan Pengembangan Layanannya untuk Perencanaan Fasilitas Produksi Agus Sutanto
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p725-742.2014

Abstract

Cloud Manufacturing is an advanced manufacturing model which provides services by utilizing a shared resource pool such as computers, servers, networking, Internet and application softwares. The term Cloud Manufacturing in the engineering literature is still fairly new. it comes from the term Cloud Computing which is earlier known as Internet services on demand. Here includes Software as a Service (SaaS) along with infrastructure, platform and other delieveries as a service. First introduced by F. Tao in 2011, Cloud Manufacturing combines the latest technologies such as cloud computing, internet of thing, manufacturing object virtualizations and service-oriented computing services. The advanced manufacturing service models related to this terminology will be described as literatur reviews in this paper. At the end of this paper was given a case study of the application of the Cloud Manufacturing for designing a web-based production facilities layout as a cloud software as a service for the users.
Indikator Proses Utama pada Proses Grinding dengan Pendekatan Manajemen Pengetahuan Ikhwan Arief; Alfajri Nalda
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p743-759.2014

Abstract

This study discusses about key process indicators in grinding with the knowledge management approach. Common/key indicators used in the machine are workpiece, grinding wheel, dressing tool and coolant. The resulting key processeswill benefit firms and their operators especially new ones in managing scienceson grinding process that will allow knowledge transferred to new operators quickly. Process indicators are described with IDEF0 diagrams which will define the inputs, outputs, mechanisms and controls.
Perancangan Aplikasi Sistem Penilaian Kinerja Karyawan dengan metode MBO dan BARS (Studi Kasus PLTA Maninjau) Taufik Nalda; Prima Fithri; Yudji Erman Prathama
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p760-770.2014

Abstract

Along with the development of science and technology today is so rapid, required human resource capacity and reliable quality which will support companies in improving the quality of the company. In response to the demanding needs of qualified human resources, Maninjau hydropower which is a branch of PT PLN and under Power Sector Bukittinggi, have tried to prepare the workforce to meet the requirements demanded by the busin ess. Way to do is to assess employee performance. Employee performance appraisal that applied hydropower Maninjau currently not able to see the performance and achievement of each employee. Hydroelectric Maninjau should improve the assessment of employees. The method can be done in assessing employee performance include the Management By Objectives (MBO) and Behaviorally Anchored Rating Scale (BARS). For the fast growing data needs, then designed an application performance appraisal in hydropower Maninjau with BARS and MBO method.Application design is done by surveying systems, system analysis, system design and performance of the MBO method BARS, employee performance appraisal application design, and manufacturing applications, as well as verification and validation. Making an application is done using Microsoft Excel. Once the application is successfully validated, then the application implementation. Implementation is based on the employee's performance on the most recent period, namely 1 last semester (January-June) were conducted in June, 2013.Based on the validation has been done, it can be concluded that the application has to be used by hydropower Maninjau in assessing employee performance. As for the results of the implementation of applications, it can be seen that the performance of the employee on hydropower Maninjau in the last period was on average 80%. The assessment includes an assessment of the achievement of business results and work with behavioral weight ratio, 60% for work objectives (MBO) and 40% for work behavior (BARS).
Aplikasi Ergonomic Function Deployment (EFD) pada Redesign Alat Parut Kelapa untuk Ibu Rumah Tangga Roberta Zulfhi Surya; Rusdi Badruddin; M. Gasali
Jurnal Optimasi Sistem Industri Vol. 13 No. 2 (2014): Published in October 2014
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.v13.n2.p771-780.2014

Abstract

Grate the coconut is one of kitchen activity which faces by housewife in daily life. A coconut grater product which is distibuted in market, one of them is manual crank system. Housewife complain that they feel painfull in their body, especially at hand. Waist and back after using available old tool. This research is purposed to improve the design of coconut grater with crank system by ergonomic function deployment (EFD) approach, also to known mosculuskletal reducing of housewife as user and show differention time of grater after redesign done. Research was conducted in RT. 001 RW.005 Tembilahan, Indragiri Hilir District. Research model used treatment by subject design with total sample is 12 housewife which is calculation by Colton Formula. Improvement new coconut grater design with crank system which EFD got by creat the matrix house of ergonomic (HOE) and determination of anthropometry data. Mosculuskletal complain on housewife is measured by making the Nordic Body Map (NBM) Questionnaire work sheet. Time of grated the coconut got by testing coconut grater by crank system on before and after using. Research finding after redesign of coconut grater of crank system shown that design of coconut grater of crank system with EFD and base on ergonomic acpects (effective, confort, savety, healthy and efficient. Mosculuskletal complaint that happend on housewife decrease about 0,285 or 17,39%. Time of grate is also faster around 5 minutes or has imporove 30,1%.

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