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All Journal Journal The Winners Binus Business Review Jurnal Manajemen Indonesia ComTech: Computer, Mathematics and Engineering Applications Business Economic, Communication, and Social Sciences Journal (BECOSS)
Shelvy Kurniawan
Bina Nusantara University
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Mathematics Social Sciences

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 1 
Comparative Study Of AHP And AHP-Topsis In Analyzing Supplier Priority (A Case Study Of Diesel Fuel Supplier At PT. X) Shelvy Kurniawan; Sambudi Hamali; Sandra Gunawan
Jurnal Manajemen Indonesia Vol 20 No 1 (2020): Jurnal Manajemen Indonesia
Publisher : Fakultas Ekonomi dan Bisnis, Telkom University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmi.v20i1.2799

Abstract

The selection of diesel fuel supplier at PT. X which were held in four operational areas, namely South Sumatra, Central Kalimantan, West Kalimantan, and East & North Kalimantan. The purpose is to determine the criterias, subcriterias and their importance weights in the selection of the best diesel fuel suppliers for each operational areas of PT. X. This study will compare the use of two well-known multi-criteria decision making methods namely AHP (Analytical Hierarcy Process) and AHP-TOPSIS (Technique for Order Preference by Similarity to Ideal Solution). The criterias were tested are Quality, Price, Capability, Delivery, Supplier Profile, and Service & Relationship with the results of the highest weighted criteria is Delivery, then followed by the highest weighted subcriteria is Supply Capability. Keywords— AHP, TOPSIS, Supplier Selection, Best Supplier
The Influence of Green Marketing on Green Satisfaction Mediated By Perceived Quality and Its Impact to Green Trust in Injection Motorcycle Shelvy Kurniawan
The Winners Vol. 15 No. 2 (2014): The Winners Vol. 15 No. 2 2014
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/tw.v15i2.622

Abstract

Currently, motorcycle manufacturers are increasingly motivated to replace their motorcycle into fuel injection products. The growing concern from the consumers to the environment and the regulations of emission standards, that is Euro 3, for motorcycle industry is being finalized in the Ministry of Environment in order to be implemented in Indonesia. Through this research, the writer will examine the effect of green marketing on perceived quality, green satisfaction, and green trust, the effect of perceived quality on green satisfaction, and the effect of green satisfaction on green trust. Those effects needs to be investigated in order to know how far the effects of green marketing and to ensure whether green marketing is well accepted or not by the market in motorcycle industry. Scope of this research is also limited to the user of fuel injection motorcycle in Jakarta for Honda and Yamaha who involved as decision maker when the motorcycle is purchased. Sampling technique used in this research is quota sampling and the analysis method is structural equation modeling (SEM). The findings of this research are: green marketing has a significant direct effect on perceived quality, perceived quality has a significant direct effect on green satisfaction, green satisfaction has a significant direct effect on green trust, green marketing has a significant direct and indirect effect on green satisfaction, and green marketing has a significant direct and indirect effect on green trust. All of those effects are found to be positive effects.
Risk and Supply Chain Mitigation Analysis Using House of Risk Method and Analytical Network Process Shelvy Kurniawan; Denny Marzuky; Rio Ryanto; Vanny Agustine
The Winners Vol. 22 No. 2 (2021): The Winners
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/tw.v22i2.7056

Abstract

The research studied PT XYZ, a company engaged in the palm oil industry which has eleven subsidiaries spread across five provinces in Indonesia. The research focused on analyzing supply chain risks in PT A, a subsidiary of PT XYZ. The objective was to find out and reduce unexpected costs that the company may experience caused by the risks in supply chain. Furthermore, the aim was to determine priority of risk agents and risk mitigation actions. The research method was a mixed methods, which combined both qualitative and quantitative analysis to answer the research questions. Data analysis procedure involved Supply Chain Operations Reference (SCOR), House of Risk (HOR) 1, and Analytic Network Process (ANP). The SCOR method was used for mapping supply chain activities, the HOR 1 was to determine the priority of the risk agent, and the ANP was to determine the priority of mitigation actions. The results show that there are 36 risk events and 35 risk agents. 19 risk agents are categorized as priority risks and 11 preventive actions are proposed to be implemented by PT XYZ. The research suggests that the company implement mitigation actions according to priority in accordance with the research results.
Supplier Selection Using FAHP and FTOPSIS in a Chemical Manufacturing Company Shelvy Kurniawan; Stevanni Cyintia Dewi; Siska Marisah
Binus Business Review Vol. 11 No. 2 (2020): Binus Business Review
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/bbr.v11i2.6255

Abstract

The research aimed to determine the appropriate weight criteria and sub-criteria in selecting the chemical solvent supplier. It was also to recommend the best alternative suppliers using a comparative analysis method of Fuzzy Analytical Hierarchy Process (FAHP) and Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (FTOPSIS). The research was conducted in one of the chemical manufacturing companies in Indonesia. The type of research was descriptive with a quantitative approach that used primary data sources such as questionnaires, interviews, and observations, and secondary data such as books and journals. The criteria studied were cost, quality, delivery, flexibility, supplier profile, and supplier relationship. The results of using FAHP indicate that the criteria with a major influence on the decision making of supplier selection are quality followed by delivery, cost, supplier relationship, flexibility, and supplier profile in sequence. Then, using FTOPSIS, it recommends that the best supplier alternative decision is Supplier A with a weight value of 0,773 and an approved evaluation status. The results have shown that both methods are suitable for supplier selection, particularly in supporting group decision making and modeling uncertainty.
Optimizing Production Process through Production Planning and Inventory Management in Motorcycle Chains Manufacturer Shelvy Kurniawan; Steven Sanjaya Raphaeli
ComTech: Computer, Mathematics and Engineering Applications Vol. 9 No. 2 (2018): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v9i2.4723

Abstract

Based on the data, there were still shortages of production from year to year and demand wereunstable in motorcycle chains manufacturer in Indonesia. To overcome these problems, the purpose of this research was to make production planning and inventory control consisting of forecasting, aggregate planning, Master Production Schedule (MPS), and Material RequirementsPlanning (MRP). Forecasting used the additive decomposition method (average of all data), multiplicative decomposition (centered on moving average), and winter method (additive and multiplicative). Aggregate planning used chase strategy, level strategy, and transportation model. Moreover, MRP used lot for lot, Economic Order Quantity (EOQ), and Periodic Order Quantity (POQ) methods. The test shows several results. First, the best forecasting is additive decomposition (average of all data) with MAD value of 3.033,57, MSE with 13.590.490,and MAPE with 10,083%. Second, the best aggregate planning is transportation model with the total cost of Rp7.708.398.390,00. Last, the best MRP method is the lot for lot with total cost Rp7.162.567.653,00.
The Measurement and Improvement of Effectiveness in K-440 Haul Truck Using Overall Equipment Effectiveness in Coal Mining Company Shelvy Kurniawan; Ayesha Azaria; Talitha Alzena; Yandri Habib Dwicahyo
ComTech: Computer, Mathematics and Engineering Applications Vol. 10 No. 2 (2019): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v10i2.5692

Abstract

The objectives of this study were to determine the effectiveness of K-440 haul trucks based on Overall Equipment Effectiveness (OEE) calculation, to find out the main factors that caused the ineffectiveness of K-440 haul trucks based on fishbone diagram and Failure Mode and Effect Analysis (FMEA), and to analyze the proposed implementation of appropriate improvements to overcome the main problems of K-440 haul trucks. The method used was the mixed method, and the type of research was descriptive. The analysis methods used were OEE, fishbone diagram, and FMEA. The results show that the average effectiveness of the three K-440haul trucks is still far below international standards, which is 44,99%. The material is a significant factor that causes low OEE based on fishbone diagram analysis. There are five problems based on the Risk Priority Number (RPN) critical value from FMEA analysis, namely transmission which is not functioning properly, worn brake lining, unrotated propeller shaft on the shaft, cracked brake drum, and broken spring. Then, the implementation of eight pillars of Total Productive Maintenance (TPM) is proposed in overcoming the main problem of K-440haul trucks. Based on these results, the company needs to implement eight pillars of TPM and carry out OEE calculations regularly.
The Effect of Toxic Workplace Environment on Employee Performance Mediated by Employee Engagement and Work Stress Among F&B Employees in Jakarta Shelvy Kurniawan; Farras Ammar Bamumin; Kevin Novaldi Kusnandar
Business Economic, Communication, and Social Sciences Journal (BECOSS) Vol. 5 No. 2 (2023): BECOSS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/becossjournal.v5i2.9729

Abstract

Employee engagement and high work stress often become obstacles for MSMEs to produce good employee performance. One of the problems in human resources that often occur is a toxic workplace environment. The purpose of this study was to determine the effect of a toxic workplace environment on employee performance mediated by work stress and employee engagement among F&B MSMEs employees in Jakarta. This research uses quantitative research methods. Questionnaires were distributed to F&B MSMEs employees in Jakarta and the data obtained was processed using SmartPLS. This study has a respondent of 400 respondents. The results showed that there was a positive effect between a toxic workplace environment on work stress, a negative effect between a toxic workplace environment on employee engagement, a negative effect between work stress and employee performance, a positive effect between employee engagement and employee performance, a non-significant negative effect of a toxic workplace environment on employee performance, there is a significant negative effect of a toxic workplace environment mediated by work stress on employee performance, and there is a significant negative effect of a toxic workplace environment mediated by employee engagement on employee performance.
The Effect of Perceived Ease of Use and Perceived Enjoyment on Customer Trust and Loyalty in Online Food Delivery Service Shelvy Kurniawan; Alodia Tankoma
Binus Business Review Vol. 14 No. 2 (2023): Binus Business Review
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/bbr.v14i2.8874

Abstract

Competition in the online food delivery industry is getting tougher. Hence, companies in the industry must increase customer trust and loyalty to continue to compete. Factors expected to increase trust and loyalty are perceived ease of use and enjoyment. The research aimed to determine whether there is an influence between perceived ease of use and enjoyment on customer loyalty in the online food delivery service industry in Indonesia, with trust as a mediating variable. The research applied a  quantitative method, using SEM with WarpPLS 7.0 software. In addition, the unit of analysis was the users of online food delivery services in various cities in Indonesia with purposive sampling. Using online questionnaires, the research obtained 215 participants. Then, data analysis was done by testing the inner and outer models. The analysis results show an influence between perceived ease of use and perceived enjoyment on customer loyalty, with trust as an intervention variable. All the relationships are found to be positive. Perceived ease of use and perceived enjoyment have a positive and significant effect on the trust of online food delivery service users in Indonesia. Similarly, perceived ease of use and perceived enjoyment affect customer loyalty of online food delivery service users in Indonesia positively and significantly. Last, trust positively and significantly influences customer loyalty of online food delivery service users in Indonesia.
Co-Authors Alodia Tankoma Ayesha Azaria Denny Marzuky Farras Ammar Bamumin Hamali, Sambudi Kevin Novaldi Kusnandar Rio Ryanto Sandra Gunawan Siska Marisah Stevanni Cyintia Dewi Steven Sanjaya Raphaeli Talitha Alzena Vanny Agustine Yandri Habib Dwicahyo