JRSI (Jurnal Rekayasa Sistem dan Industri)
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The Design of Skynesia Adventure Mobile Game Application Using Game Development Life Cycle Method as an Alternative Learning Media for High School Students
No full textSkynesia Adventure is a mobile-based gaming application designed to make the learning process moreenjoyable and interactive, while also generating revenue for the startup Skynesia. The results of thequestionnaire indicate that, on average, potential users prefer educational games that focus on science orSTEM subjects, and some users believe that educational games can enhance their knowledge of science orSTEM while having fun. This research utilized the game development life cycle theory in the developmentof the gaming application, and questionnaires were used as a method for designing and testing the applicationto ensure its usability by users. After the completion of the gaming application design, it went through twophases of testing and evaluation: alpha testing through Unit Testing, and beta testing through the UserExperience Questionnaire - Short Version. The results of these tests indicated that Skynesia Adventureachieved a score of 2.29 for both pragmatic and hedonic qualities. Therefore, the Skynesia Adventure gamingapplication can be considered to provide users with a highly satisfactory user experience. The benefits ofSkynesia Adventure include providing a more enjoyable and interactive learning experience by combininggaming elements with scientific or STEM knowledge
Optimization of Component Transportation Costs with Narrow Service Time Window and Heterogenous Vehicle Capacity
No full textTransportation costs are one of the largest cost components in distribution activities.Transportation costs can be reduced by improving distribution routes. The aims of this articleare to minimize transportation costs by determining vehicle assignments and routing forheterogeneous vehicles. The constrains that considered are the number and capacity of thevehicle, fuel consumption, service time at the company and at customers plant. Totaltransportation costs are considered as vehicle fixed costs, fuel costs, and material handling costs.CVRPTW is applied to the problem of assigning and determining vehicle routes of plasticcomponent companies that supply plastic components for various manufacturing companies inthe Greater Jakarta area. CVRPTW can reduce transportation costs in the company while stillmeet all applicable constraints. CVRPTW reduced the number of vehicles used from theprevious 6 vehicles to 5 vehicles. Total transportation costs for all shipping routes are Rp.4,563,620. This cost is lower than the company costs of Rp. 4,694,100, this routing problemreduces transportation costs by 8% of the initial cost
Analysis of Pranata Computer’s Data Governance Activities based on DAMADMBOK 2
No full textUntil now, the government is very difficult to get data that is valid, accurate, reliable, and easily accessible.Often there are differences in data, between ministries, government agencies, state-owned companies,private companies, or others. This has become a constraint for leader in decision making. At the end of2018, the Government plans to establish a Presidential Regulation concerning the One Data Indonesia, butuntil now (2019) has not yet. One of the critical success factors for this initiative is human resources (HR),namely Pegawai Negeri Sipil (PNS) who have functional positions as Pranata Komputer (PK). PK has taskand function of planning and managing information technology in the government. This research aims toanalyze PK activities related to data management based on DAMA-DMBOK 2. The methods used aredocument collection, assessment, analysis of DAMA-DMBOK 2 activities and current activities, andmapping of PK activities and data management, which focus on three knowledge (data governance, dataquality management, and metadata). The output is the mapping of PK activities based on DAMA-DMBOK2. The results of research can be used as a reference for evaluating and improving regulations related toPranata Komputer activities that support the implementation of data governance in government
Desain and Implementation of E-Commerce Websaite System in the Bakery Business in an Effort to Increase Sales and Marketing Using The Waterfall Method at The Prima Sari Bakery Facory
No full textPrima Sari is a culinary industry in Pekanbaru which is engaged in bakery. Founded in 2003 and hasbranches outside the city. The problem faced is that the sale of Prima Sari Bakery is done manually. So far,the sales system is still relying on the media interaction with consumers using the invoice bookkeepingsystem, receipt. Prima Sari as a supplier of bakery products in the store experienced bookkeeping sales canbe calculated fully after a week of delivering bakery products to the store. The marketing coverage is notcomprehensive because it relies on the factory driver's pallets in delivering bread to outlets that contributeto the distribution of Prima Sari Bakery bakery products. The purpose of this research is to design a web ecommerce to increase sales and assist the process of overseeing sales activities in the bakery industry andexpanding the area of market share and media promotion through e-commerce web access. Using theWaterfall Method with black box tasting and user acceptance test (UAT) testing. The results of this studyare a website system that can be accessed by General Users to view products and information, UserMembers or Customers can access the Prima Sari Bakery product order process, Admin Users who canprocess website systems related to sales data, customer data and User Leaders which can access salesreport data at the Prima Sari Bakery factor
Inventory Policy Design of FMCG Products to Minimize Total Inventory Cost Using Continuous Review (r, Q) at PT ABC
No full textT ABC is a start-up company that provides an online shopping platform with a variety of daily necessities,one of products offered is Fast Moving Consumer Goods (FMCG). The main problem faced by PT ABCwas the total inventory cost that exceeded the budget by 82%. This was caused by the lack of standardinventory policy calculation. To overcome this problem, a proposed inventory policy needs to be designedto obtain the optimal value of reorder point, order quantity, and safety stock. Before designing the inventorypolicy, inventory classification was conducted using ABC analysis. Then proceed with designing inventorypolicy using the continuous review method (r, Q) to minimize total inventory cost. After that, a DecisionSupport System (DSS) was designed based on the results of the proposed inventory policy using MicrosoftExcel-VBA. This research resulted the optimal value of reorder point, order quantity, and safety stock wereobtained for 42 products in category A with diverse values. Based on the proposed inventory policy, the totalinventory cost decreased by 11% or Rp281.770.103/year from the existing total cost. Then, the DSS wassuccessfully designed to assist decision makers in implementing the proposed inventory policy. Although ithad been successfully minimized, the total cost of the proposed inventory still exceeded the budget. Thiswas because the current budget had not considered all components of inventory costs, even the budget forpurchasing costs with an order quantity of as much as the number of demands was not sufficient
Determining The Need of Tank Cars In The Fuel Distribution Process to Pertashop at XYZ Company
No full textXYZ Lahat Company is one of the companies operating in South Sumatra region. This company uses Fleetor Tank Car (TC) as a mode of transportation in distributing fuel products to Pertashop. The constructionof Pertashop in Lahat, South Sumatra, has increased 22% since beginning of the program in May 2021.There are partners who join the construction of 5 units/month of Pertashop and the growth rate ofPertashops affects the number of Thruput by 143 KL/month, whereas the needs for transportation is alsoincreasing, such as the number of needs for fuel products. The method used for mapping is clustering andfor calculation used proportional. The data analysis includes the capability of the car fleet. In conclusion,321 Fleets can be fulfilled with an increase in ritase of 6.02 rit/day which can optimize the fuel distributionprocess and meet consumer needs
Application of Thermo Electric Cooler (TEC) as a Low Cost and Environmentally Friendly Technology in Air Conditioning Systems
No full textThe use of environmentally unfriendly chemicals (refrigerants) in Air Conditioners (AC) can damage theozone layer in the earth's atmosphere which has an impact on global warming. Therefore, an environmentallyfriendly cooling system is needed in the application of the Thermo Electric Cooler (TEC) cooling moduletechnology. TEC when supplied with DC voltage (direct current) one side will become hot, while the otherside will be cold, to maximize the cooling process, the hot side of TEC must be lowered as low as possibleby using a fan, heatsink and thermal paste (thermal grease). Using 6 pieces of TEC 12 V 6A, dimensions 40x 40 mm and 4 mm thick. TECs are arranged in parallel and electricity is arranged in series. TEC when thepower supply is connected to an electric current source, operating the 6 TECs attached to the heatsinkarranged in parallel and in series will cause one side to cool down (heat absorbed) and the other side tobecome hot (heat released). What causes the cold side of TEC to cool is the flow of electrons from a higherenergy level to a lower energy level. To find out the temperature of the Peltier cold results using a DHT22sensor with an Arduino microcontroller with a programmed temperature that automatically turns off and on.For the breaker or automatic switch using a 5-volt relay. the use of air conditioners per day (6 hours) issubject to tariffs Rp. 3,212 and the use of air conditioners for a month (30 days) every day the use of 6 hoursis subject to tariffs Rp. 96,360, so as to enjoy a safe and comfortable atmosphere by using environmentallyfriendly and low-cost technology
Twitter Sentiment Analysis of Recession 2023: A Comparative Study of Machine Learning Approaches
No full textSentiment Analysis helps understand public opinion on a particular topic. One recent topic that has attractedattention is the potential for a global recession in 2023. In this study, five different algorithms - BernoulliNaive Bayes (BNB), Support Vector Machine (SVM), Linear Regression, K-Nearest Neighbors (KNN), andDecision Tree - were compared to determine which algorithm provided the most accurate sentiment analysisof Twitter data related to this topic. The results showed that the SVM algorithm had the highest accuracy,and most Twitter users had negative sentiments towards topics related to a potential recession in 2023, witha prediction rate of 81.7% compared to 16.3% for positive sentiments. The results of this study are expectedto be used to understand the general public's viewpoints regarding the predicted recession in 2023 and toprovide insights for developing policies and strategies to mitigate the economic downturn
System Dynamic Modeling in Blood Supply System (Case Study)
No full textXYZ is one of the agencies that handle the distribution of blood with the amount of supply needed to meetdemand is uncertain. Problems occur in inventory management which has an impact on bloodstockfluctuations. This research was conducted using a dynamic system approach to design a blood supplymodel at XYZ and provide recommendations for the best scenario for existing problems based on thepriority indicators of the objectives. The structure of the model is described in causal loop diagrams andstock and flow diagrams. The objective function of this modeling model is to minimize the instability ofthe blood supply so that it can stabilize the intake and output of blood donors. Four policy scenarios aresimulated in the model with the parameters used is the number of replacement donors and low expiredblood. The simulation result for the best scenario is a scenario that has 230 donor bags every 15 days witha policy of procuring donors twice in one month
Service Improvement and Minimization of Complaints on Operational Car Transportation Services at PT X
No full textPT X is a cigarette company in Indonesia, the problems that occur with the company are related to theprovision of transportation services that are less than optimal because there is no support system toimprove services such as service data has not been recorded real time, division of tasks driver and vehiclesthat are less than optimal, and problems with user complaints because they are not fully met. The averageunfulfilled demand during June-December 2022 is 2.54%, while the company's hope is to fulfil allrequests. The method used to solve the problem is the DMAIC Method along with several tools likeSMART Target, 5 Why Analysis, and RACI Matrix. There are no efforts to deal with the problem supportsystem is to analyze business process early and create a TOSS system framework (Transport SupportSystem) to support transportation services. The effort to overcome user complaints is to use 5Why Analysisand cooperate with external transportation service providers. The implementation of the work was carriedout for two months and had a good impact, namely the average unfulfilled demand decreased to 0.47%.Controlling the results of repairs is by following the system work step design and using the RACI Matrix