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<![CDATA[Low Carbon Economic Production Quantity Model for Imperfect Quality Deteriorating Items ]]>
<![CDATA[Daryanto, Y]]>;
<![CDATA[Wee, H.M.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
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DOI: 10.24002/ijieem.v1i1.2291
<![CDATA[This paper presents an economic production quantity (EPQ) model for deteriorating items with a certain percentage of defective products due to an imperfect process. The defective products are sold to a secondary market at a discount price. Due to environmental concern and carbon tax regulation, the manufacturer incorporates the control of carbon emission cost into its decision model. Carbon emission cost is a function of electricity consumption during production and inventory storage; it is also dependent on the carbon tax rate. Since the production process results in work-in-process inventory and carbon emission, the study tries to optimize the throughput time. We also examine the effect of carbon tax regulation on the potential emission reduction from the developed deteriorating item model. A numerical example and sensitivity analysis have been provided, and the result confirms the influence of carbon tax regulation in reducing carbon emission.]]>
<![CDATA[Proposed Modified Clarke-Wright Saving Algorithm for Capacitated Vehicle Routing Problem ]]>
<![CDATA[Pamosoaji, A.K.]]>;
<![CDATA[Dewa, P.K.]]>;
<![CDATA[Krisnanta, J.V.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
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DOI: 10.24002/ijieem.v1i1.2292
<![CDATA[A multi-objective distribution routing algorithm by using modified Clarke and Wright Saving algorithm is presented. The problem to solve is to deliver loads to a number of outlets based load requirement. The objective function to minimize is the distance saving and traveling time of the resulted route started from depot to the outlets and return to the original depot. Problem to solve is generating a distribution route in a week considering traffic condition for each day. The original Clarke and Wright saving algorithm is modified such that the resulted routes (from a depot to some outlets) accommodates some constraints such as the maximum allowable traveling time, maximum number of delivery shifts, and maximum number of vehicles. The algorithm is applied to a distributor company with nine outlets, two vehicles, and two delivery shifts. In addition, the traffic condition on the outlet-to-outlet and the depot-to-outlet routes is considered. The simulation of the proposed algorithm shows that the algorithm can generate routes that comply with shift’s maximum delivery time and the vehicles’ capacities. ]]>
<![CDATA[Inventory Policy for Dependent Demand Where Parent Demand Has Decreasing Pattern ]]>
<![CDATA[Pratama, Y.N.A.]]>;
<![CDATA[Darmawan, M.]]>;
<![CDATA[Astanti, R.D.]]>;
<![CDATA[Ai, T.J.]]>;
<![CDATA[Gong, D.C.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
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Download Original
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Original Source
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Check in Google Scholar
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DOI: 10.24002/ijieem.v1i1.2293
<![CDATA[When a product reaches its maturity in its life cycle, some innovations have to be put in that product in order to lengthen its life cycle. Otherwise, that product will be perceived as obsolete. It might affect the demand of that product i.e. the demand become decreasing. Based on the observation that we conducted over two smart phone brands, the phenomena that the demand has declining pattern really happened in the real situation. In addition, the observation shows that the product life cycle is getting shorter. This implies that the manufacturer has to deal with decreasing demand more often. A case study is presented in this paper, in which manufacturer experienced final product with decreasing demand pattern. Some lot sizing techniques, such as Lot for Lot, Silver Meal 1, Silver Meal 2, Least Unit Cost, Part Period Balancing, and Incremental, are tested to solve the inventory policy for both final product (parent) and its components (child). It is concluded that a company should not consider only one component or one level whenever deciding the inventory policy, i.e. production lot size. It is shown by the case study that the best lot sizing technique for a particular parent of product whenever the company only consider the parent is different with the best lot sizing technique whenever the company consider the parent and its child. For the case presented, it is shown that the smallest total cost of parent and child is most likely occurred whenever Silver Meal 2 lot sizing technique is applied in the parent with decreasing demand pattern. ]]>
<![CDATA[Interpretive Structural Modelling for Determining Dominant Success Criteria of Information System (IS) Success at Handycraft SMEs in Yogyakarta, Indonesia ]]>
<![CDATA[Sinaga, B.L.]]>;
<![CDATA[Purnama, I.L.I.]]>;
<![CDATA[Astanti, R.D.]]>;
<![CDATA[Putri, N.T.]]>;
<![CDATA[Wulandari, N.D.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
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DOI: 10.24002/ijieem.v1i1.2294
<![CDATA[The purpose of this research paper is to determine the dominant criteria of Information System (IS) success specific to handcraft SMEs in Yogyakarta and to establish relationship among those criteria using interpretive structural modeling (ISM). A small portion of those SMEs have started using information system. However, they face several barriers to successfully implement the information system. Therefore, it is necessary to ensure the success of information system implementation. But, no study has been done regarding the measurement IS success specific to handcraft SMEs in Yogyakarta. This research involved interview-based surveys and ISM approach to determine the dominant criteria of IS success of SMEs in Yogyakarta context. In total, 16 SMEs were involved as research objects in this research. In this research, four cluster of SME have been identified and the modified IS Success model for each cluster was developed accordingly. The modified model for each cluster has 14, 20, 16 and 30 criteria respectively. Through ISM, a relationship model among the criteria for each model was also obtained. It was concluded that “ease of use”, “ease of learning”, and “data accuracy” are significant criteria of IS Success model in SMEs in Yogyakarta. These criteria are considered as the dominant criteria to implement information system successfully. In addition, the desired results of successful implementation is represented by “improved outcomes”. ]]>
<![CDATA[Does Customer Satisfaction Really Lead Company to Financial Success? A Review and Meta-analysis ]]>
<![CDATA[Suharyanti, Y.]]>;
<![CDATA[Dewa, D.M.R.T.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
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Download Original
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DOI: 10.24002/ijieem.v1i1.2295
<![CDATA[All the theories about market and marketing research, customer relationship management, and business in general, believe that customer satisfaction is one of the main factors for company financial success. However, a survey on 64 studies shows a wide variation of the correlation between customer satisfaction and financial performance. The correlation coefficients are varied from -0.256 to 0.899. This study applies a meta-analysis on those 64 studies’ findings to find the true correlation between customer satisfaction and financial performance. The analysis clusters the 64 studies based on year of research, business category observed, and geographical area of research. The result shows that the correlation between customer satisfaction and financial performance is relatively high (0.525) before 1990, becomes confusing (not-significantly correlated) in 1991-2000, increases (0.626) in 2001-2010, and decreases (0.595) after 2011. Based on business category, the two variables are not significantly correlated both in manufacturing industries and in service industries. The two variables are significantly correlated according to the studies conducted in Europe region (0.566) and Asia-Africa (0.657), but could not to be proven significantly correlated in USA region. The insights from the meta-analysis findings are: (1) the customer satisfaction role is change by time as well as the changes of industry environment, so that research on customer satisfaction will always be beneficial; (2) in individualist society like USA, further researches on customer behavior and culture are required to find more clear explanation about the role of customer satisfaction as well as other financial success factors, on the company performance. ]]>
<![CDATA[Low Carbon Economic Production Quantity Model for Imperfect Quality Deteriorating Items ]]>
<![CDATA[Daryanto, Y]]>;
<![CDATA[Wee, H.M.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24002/ijieem.v1i1.2291
<![CDATA[This paper presents an economic production quantity (EPQ) model for deteriorating items with a certain percentage of defective products due to an imperfect process. The defective products are sold to a secondary market at a discount price. Due to environmental concern and carbon tax regulation, the manufacturer incorporates the control of carbon emission cost into its decision model. Carbon emission cost is a function of electricity consumption during production and inventory storage; it is also dependent on the carbon tax rate. Since the production process results in work-in-process inventory and carbon emission, the study tries to optimize the throughput time. We also examine the effect of carbon tax regulation on the potential emission reduction from the developed deteriorating item model. A numerical example and sensitivity analysis have been provided, and the result confirms the influence of carbon tax regulation in reducing carbon emission.]]>
<![CDATA[Proposed Modified Clarke-Wright Saving Algorithm for Capacitated Vehicle Routing Problem ]]>
<![CDATA[Pamosoaji, A.K.]]>;
<![CDATA[Dewa, P.K.]]>;
<![CDATA[Krisnanta, J.V.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24002/ijieem.v1i1.2292
<![CDATA[A multi-objective distribution routing algorithm by using modified Clarke and Wright Saving algorithm is presented. The problem to solve is to deliver loads to a number of outlets based load requirement. The objective function to minimize is the distance saving and traveling time of the resulted route started from depot to the outlets and return to the original depot. Problem to solve is generating a distribution route in a week considering traffic condition for each day. The original Clarke and Wright saving algorithm is modified such that the resulted routes (from a depot to some outlets) accommodates some constraints such as the maximum allowable traveling time, maximum number of delivery shifts, and maximum number of vehicles. The algorithm is applied to a distributor company with nine outlets, two vehicles, and two delivery shifts. In addition, the traffic condition on the outlet-to-outlet and the depot-to-outlet routes is considered. The simulation of the proposed algorithm shows that the algorithm can generate routes that comply with shift’s maximum delivery time and the vehicles’ capacities. ]]>
<![CDATA[Inventory Policy for Dependent Demand Where Parent Demand Has Decreasing Pattern ]]>
<![CDATA[Pratama, Y.N.A.]]>;
<![CDATA[Darmawan, M.]]>;
<![CDATA[Astanti, R.D.]]>;
<![CDATA[Ai, T.J.]]>;
<![CDATA[Gong, D.C.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24002/ijieem.v1i1.2293
<![CDATA[When a product reaches its maturity in its life cycle, some innovations have to be put in that product in order to lengthen its life cycle. Otherwise, that product will be perceived as obsolete. It might affect the demand of that product i.e. the demand become decreasing. Based on the observation that we conducted over two smart phone brands, the phenomena that the demand has declining pattern really happened in the real situation. In addition, the observation shows that the product life cycle is getting shorter. This implies that the manufacturer has to deal with decreasing demand more often. A case study is presented in this paper, in which manufacturer experienced final product with decreasing demand pattern. Some lot sizing techniques, such as Lot for Lot, Silver Meal 1, Silver Meal 2, Least Unit Cost, Part Period Balancing, and Incremental, are tested to solve the inventory policy for both final product (parent) and its components (child). It is concluded that a company should not consider only one component or one level whenever deciding the inventory policy, i.e. production lot size. It is shown by the case study that the best lot sizing technique for a particular parent of product whenever the company only consider the parent is different with the best lot sizing technique whenever the company consider the parent and its child. For the case presented, it is shown that the smallest total cost of parent and child is most likely occurred whenever Silver Meal 2 lot sizing technique is applied in the parent with decreasing demand pattern. ]]>
<![CDATA[Interpretive Structural Modelling for Determining Dominant Success Criteria of Information System (IS) Success at Handycraft SMEs in Yogyakarta, Indonesia ]]>
<![CDATA[Sinaga, B.L.]]>;
<![CDATA[Purnama, I.L.I.]]>;
<![CDATA[Astanti, R.D.]]>;
<![CDATA[Putri, N.T.]]>;
<![CDATA[Wulandari, N.D.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24002/ijieem.v1i1.2294
<![CDATA[The purpose of this research paper is to determine the dominant criteria of Information System (IS) success specific to handcraft SMEs in Yogyakarta and to establish relationship among those criteria using interpretive structural modeling (ISM). A small portion of those SMEs have started using information system. However, they face several barriers to successfully implement the information system. Therefore, it is necessary to ensure the success of information system implementation. But, no study has been done regarding the measurement IS success specific to handcraft SMEs in Yogyakarta. This research involved interview-based surveys and ISM approach to determine the dominant criteria of IS success of SMEs in Yogyakarta context. In total, 16 SMEs were involved as research objects in this research. In this research, four cluster of SME have been identified and the modified IS Success model for each cluster was developed accordingly. The modified model for each cluster has 14, 20, 16 and 30 criteria respectively. Through ISM, a relationship model among the criteria for each model was also obtained. It was concluded that “ease of use”, “ease of learning”, and “data accuracy” are significant criteria of IS Success model in SMEs in Yogyakarta. These criteria are considered as the dominant criteria to implement information system successfully. In addition, the desired results of successful implementation is represented by “improved outcomes”. ]]>
<![CDATA[Does Customer Satisfaction Really Lead Company to Financial Success? A Review and Meta-analysis ]]>
<![CDATA[Suharyanti, Y.]]>;
<![CDATA[Dewa, D.M.R.T.]]>
<![CDATA[ International Journal of Industrial Engineering and Engineering Management Vol. 1 No. 1 (2019) ]]>
Publisher : <![CDATA[Universitas Atma Jaya Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.24002/ijieem.v1i1.2295
<![CDATA[All the theories about market and marketing research, customer relationship management, and business in general, believe that customer satisfaction is one of the main factors for company financial success. However, a survey on 64 studies shows a wide variation of the correlation between customer satisfaction and financial performance. The correlation coefficients are varied from -0.256 to 0.899. This study applies a meta-analysis on those 64 studies’ findings to find the true correlation between customer satisfaction and financial performance. The analysis clusters the 64 studies based on year of research, business category observed, and geographical area of research. The result shows that the correlation between customer satisfaction and financial performance is relatively high (0.525) before 1990, becomes confusing (not-significantly correlated) in 1991-2000, increases (0.626) in 2001-2010, and decreases (0.595) after 2011. Based on business category, the two variables are not significantly correlated both in manufacturing industries and in service industries. The two variables are significantly correlated according to the studies conducted in Europe region (0.566) and Asia-Africa (0.657), but could not to be proven significantly correlated in USA region. The insights from the meta-analysis findings are: (1) the customer satisfaction role is change by time as well as the changes of industry environment, so that research on customer satisfaction will always be beneficial; (2) in individualist society like USA, further researches on customer behavior and culture are required to find more clear explanation about the role of customer satisfaction as well as other financial success factors, on the company performance. ]]>
