Just In Time Method Research Articles

Penerapan Metode Just In Time dalam Upaya Meningkatkan Efisiensi Biaya Produksi Optimal pada UD. Rambak Dudung di Desa Ambal Ambil

A trading business is a business that is engaged in buying and selling products. Trading businesses can engage in various types of products that are sold for consumer, business, or government purposes. One of them is UD. Rambak Dudung is trying to buy raw materials in large quantities to keep in store if the supply runs out and demand in the market increases. With the excess of raw materials, it can cause storage costs, which can reduce UD's profits. aforementioned. So this shows that the supply of raw materials is a fairly big problem. This study aims to determine the application of the Just in time method to UD. Rambak Dudung and knew the role of the Just in time method in improving production cost efficiency in UD. Rambak Dudung. The type of research used is a descriptive method with a quantitative approach. Data collection was carried out by interviews, internet searches and library studies. The data processed is the purchase and use of raw materials. The calculation technique used is to calculate the total production cost based on company policies, the EOQ method, and the JIT/EOQ method. Based on the results of the calculation, it was concluded that the inventory policy carried out by the company has not been maximally seen from the total production costs incurred of Rp.5,853,500,- compared to the JIT/EOQ method of Rp.2,588,436,- so that the total cost saved is Rp.3,265,064.

Implementation of Procurement with Just in Time Method at the Stones Legian Bali Autograph Collection Hotels

his study aims to determine the implementation of procurement with the just in time method in one of the hotels in Bali, namely The Stones Legian Bali Autograph Collection Hotels. The research method is descriptive qualitative using the stages of data reduction, data presentation and drawing conclusions. Data collection was carried out by interviews, documentation, and observation. The results of the study indicate that there are three stages of procurement of goods, in accordance with Wicaksono's theory, namely the purchasing stage there are users, culinary admins, executive sous chefs and purchasing who play a role in processing goods until the supplier receives the order. The second stage is receiving in the process of receiving goods. In the last stage, namely the storage and release of goods, at this stage the goods can be processed by each user outlet.

Analisis Just In Time (JIT) Persediaan Krudung di CV. Age Group

Every company always needs inventory, without having inventory, entrepreneurs will be faced with risks such as one time not being able to fulfill their customers' desires. This can happen, because goods are not always available at all times, which means entrepreneurs will lose the opportunity to gain the profits they should get. Therefore, the company must have an inventory management strategy in which the company must ensure that it is able to provide supplies with quality, quantity and time. Therefore CV. Age Groub must pay attention to storage capacity in order to meet demand for supplies of goods, and more attention must be paid to inventory management so that it remains well organized. By using the Just In Time approach. This research aims to optimize the efficient use of warehouse space to store goods with maximum capacity. The results using the Just In Time system approach are more efficient in calculating total inventory costs for the CV age group. The results obtained from analysis using the Just In Time method vary because they are based on various aspects. The greatest savings value is in the aspect of minimum inventory capacity from normal inventory with 66 deliveries which can save approximately 87% of the company's total costs, while from inventory which is added assuming damage, loss and defects of 5% with 73 deliveries can be achieved. save costs by 88%. So if you use the Just In Time system you will save costs of approximately 87-88%.

The Effect of Just in Time Method on Inventory Control in Children's Clothing Production Companies

The Effect of Just in Time Method on Inventory Control in Children's Clothing Production Companies

Perbandingan Efektivitas Metode EOQ dan JIT dalam Pengelolaan Persediaan pada PT XYZ

PT. XYZ is a manufacturing company engaged in bodywork sector. Every company surely expects high profit . O ne of the ways to achieve th e goal is by minimizing the expenses. Economic Order Quantity (EOQ) and Just In Time (JIT) methods are commonly used methods to save inventory costs. This study aims to compare which method is more effective and efficient in reducing inventory costs at the company. The results of the study show that the JIT method can reduce inventory costs by 91.14% for p late with 2mm 4x8 s tandard and 93.62% for p late with 3mm 4x8 s tandard, while the EOQ method can reduce inventory costs by 33.45% for both types of the raw materials. Based on the results above, it can be concluded that JIT method is more effective than EOQ method in reducing inventory costs in the company.

Inventory Analysis at the Inspection Services Division using Economic Order Quantity (EOQ) and Just in Time (JIT) Approach

In today's highly competitive business environment, companies strive to satisfy customers by delivering high-quality products and services. This holds true for a cargo inspection services company, which relies on procuring raw materials and equipment to ensure optimal service delivery. One crucial aspect of efficient operations is monitoring and controlling the inventory of cans used for sampling. Effective inventory control is essential to avoid excessive or insufficient stock levels, which can result in increased costs. To address this challenge, the company conducted research comparing different inventory control methods: Economic Order Quantity (EOQ) and Just-in-Time (JIT). The objective was to identify the most suitable approach to optimize inventory levels while minimizing costs. By implementing the JIT method, the company was able to determine the precise amount of materials needed, leading to an optimized inventory level. The analysis revealed that implementing JIT resulted in significant cost savings, totaling IDR 2,818,611,323. Based on these findings, it was concluded that the JIT method is the most appropriate inventory control approach for the Inspection Services Division. By adopting JIT, the company can effectively manage inventory levels, reduce costs, and enhance operational efficiency.

Analisis Pengendalian Persediaan Air Mineral Dengan Metode Just In Time

Inventory in a company has an important role in supporting the course of a production and sales process. If the inventory in a company is managed properly, the production and sales processes can run smoothly. Based on this method of meeting the needs that are applied, sometimes the inventory becomes out of control, because demand changes every time. In response to this problem, Gudang Blessing Mandiri requires a new method to control inventory to be more efficient and effective. One method of inventory control is a method that only brings in goods if they are going to do the sales process or if they have received orders from consumers or distributors. And cooperate or contract with several suppliers of goods in the long term. This method is called Just In Time (JIT). The results obtained after applying the Just In Time method to the Mandiri Berkah Warehouse, the total cost for Aqua 330 ml was Rp. 103,723 with a cost savings of Rp. 105,476, on Aqua 600 ml of Rp. 236,560 with a cost savings of Rp. 552,683 and at Aqua 1,500 ml Rp. 187,789 with a cost savings of Rp. 417,158.

Comparative Inventory Control Analysis With Economic Order Quantity (Eoq) And Just In Time Method To Minimize Inventory Costs At UD.Melati Jaya

The research discusses how To Compare Inventory Control Analysis With Economic Order Quantity (EOQ) Method and Just In Time (JIT) Method To Minimize Inventory Costs At UD. Melati Jaya. This study discusses a comparative analysis of the Economic Order Quantity method and the Just In Time method to minimize inventory costs at UD. Jasmine jaya. The data analysis method used is descriptive qualitative method with comparative research that compares the Econimic Order Quantity (EOQ) method with the Just In Time (JIT) method to the cost efficiency at UD. Melati Jaya. The analysis results from the comparative calculation of inventory control show that the Just In Time Inventory Control method is more appropriate to be applied to Ud. Melati Jaya because the total cost of the inventory is smaller than the total cost of the inventory when using the Economic Order Quantity (EOQ) method.

Research on Soft Sensor Modeling Method and Its Application in Wastewater Treatment

In order to solve the problem of real-time monitoring of water quality index which is difficult to measure in the process of wastewater treatment, a dynamic modeling method of soft sensor based on the VIP (Variable Importance in Projection) and JIT (Just-in-Time) methods was proposed. Firstly, the important variables were selected by the VIP method, and then the data were updated by the JIT method. Finally, the soft sensing model of PLS (partial least squares) was established. The model was used to predict BOD5 which was an important water quality parameter in the process of wastewater treatment. The simulation results indicate that the proposed model achieves better mean square error and correlation coefficient.

COMPARATIVE ANALYSIS OF ECONOMIC ORDER QUANTITY (EOQ) METHOD WITH JUST IN TIME (JIT) METHOD AS PLANNING AND CONTROLLING OF BATAKO RAW MATERIAL SUPPLY AT UD. ULINNUHA

The purpose of this study is to compare the planning and controlling of the supply of brick raw materials between the Economic Order Quantity (EOQ) method and the Just In Time (JIT) method at UD Ulinnuha. In addition, this study also purposes to determine which methods should be applied to UD Ulinnuha from both methods. Interviews, observations, and documentation are used to get data on purchase costs, usage, storage, and ordering of raw materials. The type of research used in this study is applied research. The results of this study indicate that both methods, both EOQ and JIT can work appropriately and optimally at UD Ulinnuha. But the two methods are not suitable if applied to UD Ulinnuha because if using the JIT method, the storage warehouse is inadequate to accommodate the raw material inventory. If using the EOQ method the warehouse can accommodate raw material inventory, but in real terms, the warehouse can`t accommodate raw materials according to the maximum inventory calculation results. So that the two methods are not recommended by researchers and are recommended to continue using company policies because company policies have taken into account the conditions in the field.

Pengendalian Persedian Bahan Baku Semen Dengan Pendekatan Just In Time (Studi Pada Perusahaan Semen PT. NHR)

Background - PT. NHR is one of the new arrivals in the world of the cement industry in Indonesia, which was founded in 2011. Increased efficiency can be done in various activities in the company, one of which is by controlling inventory properly. The method that can be used by companies to manage their inventory is the Just In Time method. Objective - This study aims to determine the factors that cause the accumulation of the main raw material for cement and to determine the implementation of Just In Time in the inventory of the main raw material for cement at PT. NHR. Design / methodology / approach - The type used is the type of qualitative research. There are 2 (two) studies, namely, key informants are the Head of the Warehouse Department, the Head of the Warehouse Operational Shift, and the Head of the Production Department. While non-key informants are Warehouse Operational Shift Staff, amounting to 3 (people). Determination of the informants was chosen by purposive sampling. Results and discussion - The results showed that the factors causing the accumulation of the main raw material for cement in PT. NHR, namely (1) Inaccurate measurement of the main raw material for cement, (2) Negligent and inaccurate workers (3) Weak visual control of workers in the field due to lack of labor, hot weather and declining health, (4) Purchase of raw materials main cement with large quantities. Conclusion - Implementation of the Just In Time system at PT. NHR has indirectly been implemented but is still not optimal because in the process of purchasing the main raw materials, cement is carried out in large quantities or not in accordance with the company's production plans.

Pengendalian Persedian Bahan Baku Semen Dengan Pendekatan Just In Time (Studi Pada Perusahaan Semen PT. NHR)

Background - PT. NHR is one of the new arrivals in the world of the cement industry in Indonesia, which was founded in 2011. Increased efficiency can be done in various activities in the company, one of which is by controlling inventory properly. The method that can be used by companies to manage their inventory is the Just In Time method. Objective - This study aims to determine the factors that cause the accumulation of the main raw material for cement and to determine the implementation of Just In Time in the inventory of the main raw material for cement at PT. NHR. Design / methodology / approach - The type used is the type of qualitative research. There are 2 (two) studies, namely, key informants are the Head of the Warehouse Department, the Head of the Warehouse Operational Shift, and the Head of the Production Department. While non-key informants are Warehouse Operational Shift Staff, amounting to 3 (people). Determination of the informants was chosen by purposive sampling. Results and discussion - The results showed that the factors causing the accumulation of the main raw material for cement in PT. NHR, namely (1) Inaccurate measurement of the main raw material for cement, (2) Negligent and inaccurate workers (3) Weak visual control of workers in the field due to lack of labor, hot weather and declining health, (4) Purchase of raw materials main cement with large quantities. Conclusion - Implementation of the Just In Time system at PT. NHR has indirectly been implemented but is still not optimal because in the process of purchasing the main raw materials, cement is carried out in large quantities or not in accordance with the company's production plans.

Comparative Analysis of Raw Materials Control Using JIT and EOQ method For Cost Efficiency of Raw Material Supply in Automotive Components Company Bekasi, Indonesia

The company where the author conducted research is a company engaged in the automotive sector that produces various seals for motor vehicles and heavy equipment. The raw material used is rubber (synthetic rubber). This company has difficulty determining the amount of Rubber inventory by the needs so that there is no excess inventory stock that can cause excess inventory costs. The method used in this research is Economic Order Quantity (EOQ) and Just In Time (JIT). The author intends to compare the two methods to the cost efficiency of raw material inventory and choose which method is more appropriate for this company. From the research, it is known that the inventory costs incurred by the company are Rp. 6,048,000, while the result of the cost calculation using the EOQ method is Rp. 3,678,175 and Rp's JIT method. 1,320,945. It can be concluded that the JIT method has the smallest total cost of inventory compared to the EOQ method and the company method. The company where the author conducted research is a company engaged in the automotive sector that produces various seals for motor vehicles and heavy equipment. The raw material used is rubber (synthetic rubber). This company has difficulty determining the amount of Rubber inventory by the needs so that there is no excess inventory stock that can cause excess inventory costs. The method used in this research is Economic Order Quantity (EOQ) and Just In Time (JIT). The author intends to compare the two methods to the cost efficiency of raw material inventory and choose which method is more appropriate for this company. From the research, it is known that the inventory costs incurred by the company are Rp. 6,048,000, while the result of the cost calculation using the EOQ method is Rp. 3,678,175 and Rp's JIT method. 1,320,945. It can be concluded that the JIT method has the smallest total cost of inventory compared to the EOQ method and the company method.

MEASUREMENT OF PRODUCTION PROCESS PRODUCTIVITY OF BOLT HEXAGON NUT M10 X 60MM WITH JUST IN TIME METHODS AND MANUFACTURING CYCLE EFFECTIVENESS (MCE) TO REDUCING NON VALUE ADDED ACTIVITY

The purpose of this research is to calculate the value of productivity carried out in the production of Bolt Hexagon Nut M10X 60MM that have applied the Just in Time method. Machine productivity calculations are carried out using Manufacturing Cycle Effectiveness (MCE) to reduce non-value-added processes. The results of research conducted from January to December 2017 showed an increase in the MCE value of 35%, and productivity increased by 139.75 kg / hour for one year. The calculation shows that MCE is very effective for use in planning and improving value-added activities.

JIT Production Strategy and Maintenance for Quality Deteriorating Systems

We study the optimal production planning and major maintenance scheduling for an unreliable manufacturing system. We assume that the production unit experiences progressive deterioration that negatively influences product quality. For the production policy, we extend improve traditional threshold policies with a superior alternative, based on a just-in-time (JIT) strategy. The paper brings a new vision on the importance of implementing more effective production strategies based on JIT methods, instead of traditional threshold policies. When a failure occurs, the production unit is minimally repaired, and when the major maintenance is selected, the machine is restored to brand-new conditions. The objective of the model is to determine the simultaneous JIT production and major maintenance strategy that minimizes the total cost. Due to the stochastic features of the system, a simulation-based optimization approach is proposed, which combines the descriptive capabilities of simulation modeling with analytical models, statistical analysis, and optimization techniques. The results verify that the proposed simulation–optimization approach provides new and coherent results that highlight the strong influence of quality deterioration on the determination of the control parameters. A sensitivity analysis and a comparative study are conducted to illustrate that significant cost savings could be obtained with the proposed approach.

PERANAN JUST IN TIME METHOD UNTUK PENINGKATAN PRODUKSI PERUSAHAAN

Market competition that is not only in national scope, transportation and communication tool progress have encouraged global competition. Technology advance plays an importance role in short goods circulation and increasing various types of produced goods. This research aims to determine (1). Any non value Added activities leading to non value added costs in the company (2). The extent of benefits and roles of Just In Time (JIT) Method in eliminating all non value activities or sources (3). To provide description on the importance of Just In Time application for the company in order to improve efficiency and productivity. This research used descriptive method, namely the research giving description on certain activity or project systematically, factually and appropriately and there are also some necessary analyses to overcome any faced problems and to find out any alternatives that can be used to anticipate various developments to be adjusted with the theory. Results of the research conclude that (1). Success in reducing or making efficient production cost can be seen in sale by savings (2). The figure is obtained from comparison of cost of goods before the JIT production system implementation with the cost of goods after the JIT production system implementation. (3) by reducing cost of goods, it is expected that the company can reduce its cost of sale, with the aim to add product competitiveness in the market and the company will obtain increased level of profits. (4) it can be seen that before the implementation of JIT production system, the company profit has increased after the implementation of JIT production system. Keywords: Just In Time Method, Company Production Increase

Enhanced just-in-time soft sensor calibration method using data density estimation

Soft sensor is an efficacious solution to predict the hard-to-measure target variable by using the process variables. In practical application scenarios, however, the target feedback cycle is usually larger than that of process variables which causes a lack of sufficient prediction errors during the period of a target feedback cycle. Consequently soft sensor cannot make calibration timely and performance deteriorates. We proposed an enhanced just-in-time (JIT) soft sensor calibration method using data density estimation. The enhanced JIT method as the core is basically implemented by the estimate of data density of the history database. First the database is divided into a plenty of data blocks. The center of each block is calculated in pair of the process and target variables respectively. For each center we designed a criterion to preliminarily work out the corresponding optimized sampling number to indirectly represent the data density of each block and further use pooling strategy to partition the database into some differently dense zones. Ultimately we obtain the data density of the database making precise sampling feasible to improve the performance of the JIT-based method. The proposed calibration method is tested through comparative experiments on a pH neutralization facility in our laboratory and is verified feasible and effective.

Lean Production Practices to Enhance Organisational Performance

Service sector organisations are constantly overcoming the challenges facing the over-production and waste reduction within their environments. Industries are also becoming very competitive thus forcing them to seek suitable production organisation strategies with the aim towards enhancing their competitiveness and efficiency. The aim of this research study is to investigate the impact of lean production practices on the performance of service based businesses through the case study of a local baked goods supplier. The research framework adopted consists of questionnaire survey method implemented with different end users, thus covering the overall production – retail – customer cycle. The research results and analysis justify the objective of the research that lean production practices enhance the performance of the supplier company and the common tool identified were JIT (Just in Time), Value Steam Mapping (VSP) and the 5S methods. The results also suggest that JIT method has a higher impact towards improvement on performance relating to quality, speed, dependability, flexibility and cost of the supplier. However, the research study also identifies that one of the major challenges faced by the organisation while adopting lean practices was the lack of commitment from top management, continuous training and employee engagement measures.

Sparse Sample Regression Based Just-In-Time Modeling (SSR-JIT): Beyond Locally Weighted Approach

In the present work, a new method for just-in-time (JIT) modeling is proposed. To develop virtual sensors or soft-sensors that can cope with changes in process characteristics as well as nonlinearity, JIT modeling such as locally weighted regression (LWR) and locally weighted partial least squares (LW-PLS) has been investigated and successfully used in various industries. The conventional JIT modeling methods predict output variables by constructing a local model by using past samples located in the neighborhood around the new target sample (query) every time when the output prediction is required; the modeling samples are selected or weighted according to the similarity between the samples and the query. The similarity is usually determined on the basis of the distance from the query. However, the use of distance does not assure the high prediction accuracy. To overcome this limitation of the conventional JIT methods, the proposed method selects past samples that are useful for constructing an accurate local model by using elastic net, which builds a sparse regression model to estimate the query, and uses the derived regression coefficients to evaluate the similarity for conducting LW-PLS. This sparse sample regression based just-in-time modeling (SSR-JIT) has a potential for surpassing the conventional distance-based JIT modeling. In fact, it was demonstrated that SSR-JIT outperformed LW-PLS in the prediction accuracy through two case studies with real industrial data.

The Adaptation of the Implementation of Just In Time Method - A Case Study in Pharmacy of Kemang Medical Care

Introduction - The 30%-50% of the hospital’s income comes from pharmacy. The mishandling management can result in waste. If the drug excess, the hospital got loss, because the drugs will not be used. Unavailable drugs (stock out) can miss the chance to get a profit. Therefore, some efforts are made to manage the pharmacy, one of them: implementing JIT method. Some hospitals successfully implement these methods, including: Kemang Medical Care (Indonesia), Seattle Children's Hospital, Cincinnati Children's Hospital Medical Center, Sacre-Coeur Hospital in Montreal, and the Hospital for Sick Children (USA).Methodology - The study was conducted only in two hospitals (Kemang Medical Care and Seattle Children's Hospital). The information is gathered from the research reports from those hospitals. Interviews were conducted with those involved in the design, implementation, and monitoring. Questions related to how the JIT is designed, implemented, monitored, and the effects towards the pharmaceutical supplies.Results - Kemang Medical Care. Cost reduction is calculated from the ratio of purchases to sales. The ratio is increased from 4.39 becomes 8.04; since the purchases are dropped consistently, it is able to compensate the sales. Seattle Children's Hospital. The program takes 18 months and costs $200,000. The implementation of JIT is able to save 23,000 work hours per year and reduce the cost 5% of supply. The costs are equivalent with the ROI for amount $2.5 million in the first year and a profit of 1,200%.Discussion - The JIT method is more focused on the efforts to reduce the variation in the form of a good visual representation. JIT is a cost control method that eliminates the activity of continuous daily scheduling. Controlling is made easier with a good visual representation. Reduction of variation and visual representation are important in the implementation of JIT.