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INDONESIA
Jurnal Teknik Industri
ISSN : 14112485     EISSN : 20877439     DOI : -
Core Subject : Engineering,
Jurnal Teknik Industri aims to: Promote a comprehensive approach to the application of industrial engineering in industries as well as incorporating viewpoints of different disciplines in industrial engineering. Strengthen academic exchange with other institutions. Encourage scientist, practicing engineers, and others to conduct research and other similar activities.
Arjuna Subject : -
Articles 9 Documents
Search results for , issue "Vol. 16 No. 2 (2014): DECEMBER 2014" : 9 Documents clear
On the Effect of Combination of Statistical and Judgemental Stock Control Methods Inna Kholidasari
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.861 KB) | DOI: 10.9744/jti.16.2.113-120

Abstract

Stock control is the most important aspect in an inventory system. It determines the safety stock in order to ensure that products are readily available when the customers require them. The decision makers in organizations tend to rely on software solution in obtaining stock control solutions since they have to manage a massive number of Stock Keeping Units (SKUs). However, managers intervene in the system and use their judgement to adjust or decide on various quantitative elements. This research discusses the effects of combination of stock control methods. An extended database of approximately 1,800 SKUs from an electronics company is analyzed. Then, a simulation experiment is performed in order to evaluate in a dynamic fashion what are the effects of applying combined stock control methods. The findings indicate that the combined method of stock control seems to improve the performance of the inventory system, especially in reducing inventory investment.
Fuzzy Logic Reliability Centered Maintenance Felecia .
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.506 KB) | DOI: 10.9744/jti.16.2.121-126

Abstract

Reliability Centered Maintenence (RCM) is a systematic maintenence strategy based on system reliability. Application of RCM process will not always come out with a binary output of “yes” and “no”. Most of the time they are not supported with available detail information to calculate system reliability. The fuzzy logic method attempts to eliminate the uncertainty by providing “truth” in different degrees.Data and responses from maintenance department will be processed using the two methods (reliability centered maintenance and fuzzy logic) to design maintenance strategy for the company. The results of the fuzzy logic RCM application are maintenance strategy which fit with current and future condition.
Model Integrasi Penjadwalan Produksi Batch dan Penjadwalan Perawatan dengan Kendala Due Date Zahedi .; TMA Ari Samadhi; Suprayogi .; Abdul Hakim Halim
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (525.361 KB) | DOI: 10.9744/jti.16.2.73-82

Abstract

This paper discusses the integration model of batch production and preventive maintenance scheduling on a single machine producing an item to be delivered at a common due date. The machine is a deteriorating machine that requires preventive maintenance to ensure the availability of the machine at a desired service level. Decision variables of the model are the number of preventive maintenances, the schedule, length of production runs, as well as the number of batches, batch sizes and the production schedule of the resulting batches for each production run. The objective function of the model is to minimize the total cost consisting of inventory costs during parts processing, setup cost and cost of preventive maintenance. The results show three important points: First, the sequence of optimal batches always follows the SPT (short processing time). Second, variation of preventive maintenance unit cost does not influence the sequence of batches. Third, the first production run length from production starting time is smaller than the next production run length and this pattern continues until the due date. When in process inventory unit cost is increased, the pattern will continue until a specified cost limit, and beyond the limit the pattern will change to be the opposite pattern.
Dairy Supply Chain Risk Management in Bangladesh: Field studies of Factors and Variables Tasnuba Nasir; Mohammed Quaddus; Mohamamd Shamsuddoha
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (484.642 KB) | DOI: 10.9744/jti.16.2.127-138

Abstract

Supply chain risk management (SCRM) has gained wide attention among the academia and the business community in the present competitive business world. This paper aims to investigate the main risk factors associated with the dairy industry along with focuses on possible mitigation strategy to mitigate those risks. Qualitative field study has been undertaken in this research. The results of the interviews identify the different risk issues along with the possible mitigation strategies, embedded at storage, processing and distribution level in dairy industry of Bangladesh. The practical implication will contribute significantly to the dairy sector in terms of mitigating risks.
Information System Quality and Its Impact on Individual Users’ Benefit: Analysing the Role of Knowledge Enablers Iman Sudirman; Rajesri Govindaraju; Andara Arie Pratiwi
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.142 KB) | DOI: 10.9744/jti.16.2.65-72

Abstract

With increasing competitive pressures, companies are trying to improve the quality of their processes and the work quality of their. This fact has triggered the companies to improve their information systems. Having made some investments in IT systems, those companies look for ways to gain benefits from their investments. The benefit from IS investment arise when the use of information system (IS) provides some positive impact to the organisation in terms of business impacts and individual impacts. Thus, investigating IS impact for individual user„s performance is very important. This study explores the effect of IS quality on individual benefits. The influence of six moderating variables related to knowledge enablers on the impact of IS quality on individual benefits was studied. The six moderating variables are: collaboration, trust, learning, centralisation, expertise, and formalisation. Data was collected using questionnaires distributed at two big private companies in Indonesia. Data processing was done with the help of SPSS software. After factor analysis, IS quality was split into two variables: Information quality and System and service quality. The study found that both the variables influence the perceived individual benefits significantly. The influence of information quality on individual benefit is positively moderated by expertise, learning, centralisation and formalisation. Finally, the influence of system and service quality on individual benefit is positively moderated by expertise and formalization.
Model Vehicle Routing Problem dengan Karakteristik Rute Majemuk, Multiple Time Windows, Multiple Products dan Heterogeneous Fleet untuk Depot Tunggal Ary Arvianto; Aditya Hendra Setiawan; Singgih Saptadi
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (704.807 KB) | DOI: 10.9744/jti.16.2.83-94

Abstract

In this paper we developed a VRP model for multiple routes, multiple time windows for multiple products and heterogeneous vehicles. The solution were constructed using a heuristic approach, i.e, a sequential insertion algorithm. Additionally, this model is applied to solve fuel distributions for eight customers in East Nusa Tenggara. It needs two tankers with capacity of 4700 kilo liters, so that those distributions can be accomplished with a minimum number of vehicles, total completion time, and range of completion time. The result of this study shows that for a heterogeneous vehicles problem, a vehicle with the largest capacity may not necessarily be the vehicle that provides an optimal solution. Moreover, advance trials should be conducted by providing a limited number of tankers for each tanker capacity, so the description of heterogeneous vehicles becomes more visible. In the future research, the solution will be improved by utilizing relocation techniques.
E-Business Initiatives in Indonesian Manufacturing SMEs Singgih Saptadi; Iman Sudirman; TMA Ari Samadhi; Rajesri Govindaraju
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (434.862 KB) | DOI: 10.9744/jti.16.2.139-148

Abstract

The role of information technology (IT) in improving companies’ competitiveness, including small and medium enterprises (SMEs), has been widely accepted. But, the IT investment will be in vain, if SMEs do not align their business and IT. There is a need to develop a framework of business-IT alignment. The framework development requires an understanding of the patterns of IT implementation in supporting SMEs’ business (e-business initiatives). This paper presents an empirical study on e-business initiatives in Indonesian manufacturing SMEs. The study uses 41 business processes that are grouped into three business focuses: supplier side, internal side and customer side. Based on the complexity of IT support to business processes, supplier side score, internal side score, customer side score and global score can be calculated. These scores are used to develop e-business initiative groups by using cluster analysis. After validated using discriminant analysis, the cluster analysis gives five e-business initiatives. First initiative is e-business implementation in three sides of business focuses, although in the early stage. Second initiative is IT implementation with internal side focus. Third initiative is e-business with customer side focus. The fourth is initiative that focuses on internal and customer side. The last is e-business initiative that balances and extends IT implementation on the three sides of business focuses. Then, this paper explains the differences between e-business initiatives.
The Effect of Unreliable Machine for Two Echelons Deteriorating Inventory Model I Nyoman Sutapa; I Gede Agus Widyadana
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.963 KB) | DOI: 10.9744/jti.16.2.107-112

Abstract

Many researchers have developed two echelons supply chain, however only few of them consider deteriorating items and unreliable machine in their models In this paper, we develop an inventory deteriorating model for two echelons supply chain with unreliable machine. The unreliable machine time is assumed uniformly distributed. The model is solved using simple heuristic since a closed form model can not be derived. A numerical example is used to show how the model works. A sensitivity analysis is conducted to show effect of different lost sales cost in the model. The result shows that increasing lost sales cost will increase both manufacture and buyer costs however buyer’s total cost increase higher than manufacture’s total cost as manufacture’s machine is more unreliable.
The Development of Manufacturing Process Analysis: Lesson Learned from Process Mining Bernardo Nugroho Yahya
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (914.5 KB) | DOI: 10.9744/jti.16.2.95-106

Abstract

Process analysis is recognized as a major stage in business process reengineering that has developed over the last two decades. In the field of manufacturing, manufacturing process analysis (MPA) is defined as performance analysis of the production process. The performance analysis is an outline from data and knowledge into useful forms that can be broadly applied in manufacturing sectors. Process mining, an emerge tool focusing on process perspective and resource perspective, is a way to analyze system based on the event log. The objective of this study is to extend the existing process analysis framework by considering attribute perspective. This study also aims to learn the lessons from some experiences on process mining in manufacture industries. The result of this study will help manufacturing organizations to utilize the process mining approach for analyzing their respective processes.

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