Computer and Science Industrial Engineering (COMASIE) https://ejournal.upbatam.ac.id/index.php/comasiejournal <p style="text-align: justify;">Comasie Journal is a scientific journal of the students of the Faculty of Engineering and Computer, Putera Batam University, which consists of three groups of Sciences namely information systems, informatics engineering and industrial engineering. The journal will be published six months in one year. This journal contains the scientific work of student research with the specific subjects: Networking, Artificial Intelligence, Image Processing, Expert Systems, Computer Systems, Soft Computing, Web Programming, Mobile Programming, Games Programming, Data Mining, Decision Support Systems, and Ergonomics , Product Design, Optimization, Quality, Industrial Management, and Science Management (AW)</p> LPPM Putera Batam en-US Computer and Science Industrial Engineering (COMASIE) 2715-6265 PERANCANGAN APLIKASI PEMBELAJARAN GRAMMAR DAN LISTENING BAHASA INGGRIS https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6260 <p><strong><em>ABSTRACT</em></strong></p> <p>&nbsp;</p> <p><em>English is the official language in various countries in Europe, America, and Africa, therefore official English is considered as the first international language in the world. This is the main reason English is a compulsory subject in schools. Based on an article published by the UKI English Education Department, it states that there are several factors that hinder students in learning English including, namely the lack of student motivation and students rarely practice English outside of class hours and the English language material available at school is of course limited due to lack of Learning hours at school are a maximum of only four hours a week. The purpose of this study is to design an application for learning English grammar and vocabulary on the Android platform and the method used is the Rapid Application Development method. This application is designed using Smart Apps Creator, Microsoft PowerPoint, and Adobe Photoshop. With the creation of an application design for learning English grammar and listening, it is hoped that it can increase the knowledge and insight of students or users of this application and correct grammatical errors in English.</em></p> <p>&nbsp;</p> <p><em>Keywords: English; Smart App Creator; Android Platform;</em></p> toni toni pastima simanjuntak Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 1 10 PENERAPAN FUZZY LOGIC UNTUK PEMILIHAN KENDARAAN RODA DUA DENGAN METODE MAMDANI PADA PT GRAHA AUTO PERKASA https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6261 <p>One of the famous motorcycle brands in Indonesia, one of which is a Yamaha brand motorcycle marketed by PT Graha Auto Perkasa. Each motorcycle has different specifications. Motorcycles are born with various brands, and other specifications. Motorcycles are a very necessary means of transportation, because owning and using a motorbike can support the needs of user activities. In addition, motorcycles are easier and more practical than other means of transportation to support all user activities. Therefore, the need for motorcycles is very high. Because fuzzy logic is very flexible so it accepts tolerance for data that is not completely correct or not completely wrong, and is used as a way of mapping problems from input to expected output. By using the Mamdani fuzzy method, it can make it easier for PT Graha Auto Perkasa to offer every motorcycle product without having to explain all the criteria or specifications of each motorcycle because consumers only input data that matches the criteria desired by the consumer. And by using Mamdani fuzzy logic, consumers can get accurate results in determining the selection of Motorcycles with the specifications obtained, before making a purchase.</p> Steven Steven Koko Handoko Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 11 18 PROTOTYPE PERAHU PENGANGKUT SAMPAH BERBASIS ARDUINO https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6273 <p><em>In human daily life ca not be separated from the use of technology, the development of this technology must be followed by human resources. The more people, the more the need for raw materials and the more waste. Indiscriminate disposal of garbage can pollute the air, soil and water, as a result the quality of water in rivers will decrease and can cause disease. what if the cleaning of garbage carried out by humans takes a lot of time and energy to clean up the garbage. The purpose of this research is to make a waste transporter with a remote control. The garbage boat is designed using Arduino Uno R3 which is controlled via a microcontroller. There is a servo motor that functions as the propulsion of the boat arm that serves to transport garbage into the boat, and there is a DC motor that moves the boat to turn right and left, and move forward. This prototype was made to make it easier for humans to transport garbage with microcontroller control and reduce the efficiency of the time needed and the dangers that exist in the river. The results obtained from this design are the boat can move freely on the surface of the water and the servo motor as the arm drive for transporting garbage.</em></p> Wahyu tafta Zani Cosmas Suharyanto Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 19 27 SISTEM PAKAR DIAGNOSA PENYAKIT ASAM LAMBUNG PADA ORANG DEWASA MENGGUNAKAN METODE FORWARD CHAINING BERBASIS WEB https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6073 <p><strong>ABSTRACT</strong></p> <p><strong>&nbsp;</strong></p> <p><em>A specialist framework is a framework that can mimic the thinking of a</em><em>&nbsp;</em><em>specialist into a PC so the PC can tackle issues which is to be expected by specialists or specialists. The information put away in the master framework is for the most part taken from a specialist regarding this situation. human. Master frameworks are typically utilized for investigation, discussion, finding and assist with simply deciding. The most common way of fostering this master framework utilizes the strategy for information securing with information assortment procedures utilized, in particular meetings and perceptions. While the strategy utilized is the forward tying technique which is utilized to dissect the side effects of the infection into a choice on the name of the illness. This master framework was made determined to help patients in diagnosing gastric sicknesses and giving accommodation to clients to counsel about illnesses of the stomach without meeting the specialists straightforwardly.</em></p> <p><em>&nbsp;</em></p> <p><em>&nbsp;</em></p> <p>&nbsp;</p> Momy Dahlia Sinaga Momy Dahlia Sinaga Alfannisa Fajrin Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 28 35 ANALISIS PENERAPAN TOTAL PRODUCTIVE MAINTENANCE (TPM) PADA MESIN CNC DRILLING DI PT AMTEK PRECISION COMPONENTS BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6143 <p><strong>ABSTRA</strong><strong>CT</strong></p> <p><em>PT. Amtek Precision Component Batam is a manufacturing company located in the Citra Buana III area, PT. Amtek Precision Component Batam is a manufacturing company located in the Citra Buana III area of ​​Batam City which produces hard disk drive components. The object of this research is the Brother TC-20A CNC drill machine at PT. Amtek Precision Components Batam. This study uses the OEE method, then measures the six big loss using Pareto diagrams and fishbone diagrams. The study was conducted in January-June 2022 from the results of the calculation of the highest OEE value in June 2022 of 72.48%, the lowest OEE value in January 2022 of 72.18% with an average OEE value of 72.24%. is below the world standard, which is 85%. The result of the calculation of the six big loss factor that causes low engine performance is the breakdown loss factor with a value of 32.83%. Based on the fishbone diagram on the Brother TC-20A CNC machine, there are four factors that cause failure, namely human factors, machines, methods and materials. For this reason, it is necessary to propose weekly scheduled maintenance improvements and carry out training to improve employee performance.</em></p> Fader Oloan purba Elva Susanti Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 36 46 RANCANG BANGUN APLIKASI PENCARIAN TEMPAT KOST DAN KONTRAKAN BERBASIS WEB DI KOTA BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6297 <p><em>Batam is known as one of the places visited by many foreigners, because Batam City has many job opportunities so it is not surprising that in Batam City there are many boarding/rental businesses. Currently the availability and information about boarding houses/rentals tend to be inaccurate and relevant, just sticking a banner in front of it provides minimal information. there are those who inform only with the word there is an empty boarding house and there are also those who notify with complete data but not with the cost of the boarding house. As a result, it must take a long time to find a place to live in accordance with his wishes. So the author designed a residence search application with complete data so that places of residence can be done easily and quickly and to be able to promote the right owner in this application. This application is made using the waterfall method.</em></p> Sattra Mardiana diana Ellbert Hutabri Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 47 52 USULAN PENINGKATAN KINERJA MESIN PENGEMAS ROKOK PADA PT XYZ https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6299 <p><em>PT XYZ is a tobacco and white tobacco manufacturer. In the production process, the company uses GD-X1 packaging machine. Increased usage of the machine can affect the performance of the machine and reduce the performance of the machine. The object of this study was to decisive the Overall Equipment Effectiveness (OEE) of the GD-X1 machine and identify the root causes and performance improvements of the GD-X1. The results of OEE calculation on the GD-X1 machine from January to December 2021 showed OEE values of 47.01%. Based on the six big loss factors, the largest factor is 77.02% speed loss. Failure priority is based on the highest RPN value. This is part and component damage with an RPN value of (210). Proposals for improvement by creating management standards for parts and components.</em></p> Mauliddia Yanti Welly Sugianto Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 53 62 PENGARUH LINGKUNGAN KERJA TERHADAP PRODUKTIVITAS KARYAWAN DI PT EUSUN TECHNOLOGY BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6244 <h2>ABSTRACT</h2> <p><em>This research is entitled thee effeect of thee work environment on employee productiviity at PT Eusun Technology Batam. Ths stuidy aims to determine thee effeect of thee worke environmeent orn employe productiviity. Thee population inthis stuldy werre all employesof PT Eusun Technology Batam as many as 466 people. This type of techniique in this study obtained a probability sampliing techniqque whih is asampling technique based on thee fact that every member of thee population has thee same opportunity to be selected as a sample, so that it has a sample of 82 respondents. Thee variable value of thee work environment description is 14.80 with a percentage value of 49.35%. This value is not good, which means thee work environment at PT. Esun Technology Batam. While thee average value of employee productiviity is 38.87 with a percentage value of 59.80%. This value is not good, which means thee productiviity of employees at PT. Esun Technology Batam. Thee results of this study using correlation analysis showed a sig (2-tailed) value of 0.001which meatns a significaant value of less than 0.05 which means correlated. While thee Pearson correlation value is 0.520.</em></p> Sedaryanto_Telaumbanua Sri Zetli Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 63 74 PENGENDALIAN PERSEDIAAN SUKU CADANG MAINTENANCE DI PT ABC DENGAN METODE EOQ https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6233 <p><em>PT ABC is a manufacturing company engaged in the manufacture of lighting products and detection devices. This research was conducted in the maintenance department to support the lamp testing production process which focuses on the availability of critical maintenance spare parts. In this study only focuses on two types of spare parts, namely IC (integrated circuit) and IGBT (insulated gate bipolar transistor). Because they often run out of stock before the ordered orders arrive, because there is no set minimum stock order, and procurement costs tend to be high. The purpose of this study is to determine the amount of safety stock, to determine the reorder point and to determine inventory control can achieve efficiency and can minimize inventory costs by applying the EOQ method. After applying the EOQ method, the number of safety stock on IC spare parts is 51 pieces, reorder points are 102 pieces and the procurement cost is Rp.527.345 compared to the company's method is Rp.3.351.828 by using the EOQ method it can save costs of Rp.2.824 483. Safety stock on IGBT spare parts is 3 pieces, reorder point 6 pieces. And procurement costs are Rp.1.097.571 compared to the company's method of Rp.5.942.656 by using the EOQ method to save costs of Rp.4.845.085.</em></p> <p><em>&nbsp;</em></p> Sopian Pakpahan Ganda Sirait Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 75 83 ANALISIS RISIKO KESELAMATAN DAN KESEHATAN KERJA PADA PENGOPERASIAN FORKLIFT DI PT SHIMANO BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6247 <p><em>This study discusses the analysis of work safety s in forklift operations at PT&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;XYZ. This study aims to identify the level of forklift operation in the FGWH department. In this study, the prevention of work accidents was carried out using the HIRARC (hazard identification&nbsp; risk asessment risk control and&nbsp; assessment likelihood &amp; severity based on the Malaysia Ministry of Human Resources, 2008. The stages of forklift operation in this study, check forklift, gate in , picking, wrapping and container loading.The results of this assessment there are 10 potential hazards found in the FGWH department.There are 3 work processes that have a high level with percentage 55%. There are 3 work processes that have a moderate level with percentage 34%. There are 4 work processes that have a low&nbsp; level with percentage of 11%. &nbsp;Control recommended by researchers, namely establishing forklift paths, establishing pedestrian paths and setting forklift operating paths in areas with a large number of workers, making SOP, controlling existing controls, relayout, providing training operation of forklifts, presenting hazard signs in the work area, carrying out&nbsp; management activities on a regular basis and other scientific approaches such as accident investigation, human factors in safety and ergonomic.</em></p> Radot Marulitua Gultom Citra Asmarawati Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 84 94 EVALUASI PEMILIHAN SUPPLIER BAHAN BAKU TUBE PADA PT AMBER KARYA BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6309 <p><em>Decision making has become a part of everyday life, and it may be as easy or as complex as you want it to be. In circumstances when a system (simple or complex) is involved, decisions can be made following a preset procedure. For complex situations, the Analytic Hierarchy Process (AHP) may be used to construct a hierarchy of criteria, subjectively appraised by interested parties, and then drawing various considerations to be developed. Priority or heft (conclusion).</em></p> Mustaqim Elva Susanti Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 95 104 PENGENDALIAN PERSEDIAAN BAHAN BAKU PADA UKM MEBEL DI KOTA BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6049 <p><em>The decline in raw material inventory causes production to not run smoothly, this results in delays in the production process so that it cannot meet consumer needs. This study aims to: (1) determine the optimal amount of raw material inventory using the EOQ method (2) to determine the cost of inventory using the EOQ method. This research is a qualitative research. Collecting data in this study using observation, documentation and interviews. The research method in this study uses the Economic Order Quantity (EOQ) method. The result of this research is that in the EOQ method, the number of orders for raw material inventory is 11 tons with a frequency of ordering 5 times. To optimize the total cost by applying the number of orders using the EOQ method. Because the calculated EOQ method produces a total cost of Rp. 8,378,544. From the results of this study concluded that the EOQ method can optimize raw material inventory and lower costs. So from this research, it is expected for companies to apply the EOQ method so that raw material inventory runs smoothly at economical prices. </em></p> Julius Siahaan Welly Sugianto Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 105 115 ANALISIS PENGENDALIAN PERSEDIAAN BAHAN BAKU DALAM MEMINIMASI BIAYA PRODUKSI DI PT VOLEX BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6039 <p>Policy in determining the level of control of raw material inventory that must be maintained, <br />by placing orders to increase inventory to be made and how large orders must be held. <br />Cable raw material inventory data for several months, such as in March 2021 the company <br />experienced an excess of 3,000 pcs of raw materials, in April 2021 there was a shortage <br />of raw materials of 500 pcs, and the biggest shortage occurred in December 2021, which <br />was 4,000 pcs. occurs due to erratic demand from customers so that companies often <br />experience shortages and excess raw materials, sometimes shortages of raw materials <br />for delivery occur from suppliers who arrive late. The method used in this research is the <br />method of Economic Order Quantity (EOQ) and Silver Meal. The results of calculations <br />using the Economic Order Quantity (EOQ) inventory model, obtained the number of orders <br />for one order of cable raw materials is 39,200 pcs. Then for the safety stock of cable raw <br />materials outside the routine needs of cable raw materials as many as 23 pcs. The results <br />of the calculation of the time for reordering raw materials are 1,640 pcs. The total cost that <br />must be incurred by the company if using the Economic Order Quantity (EOQ) inventory <br />model is Rp. 11,091,666, - and using the Silver Meal method the company incurs a cost <br />of Rp. 8,241,666, - for cable raw materials.</p> Richad Marpaung Elva Susanti Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 116 126 ANALISIS BEBAN KERJA DAN KELELAHAN PADA OPERATOR PRODUKSI CAM COPPER ASSEMBLY DI PT. INTERPAK INDUSTRIES BATAM https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6264 <p><em>pada pembuatan Standing Wire bagian assembly masih dilakukan secara manual, setiap harinya pekerja bekerja pada posisi berdiri menggunakan aliran udara yang minim. pada PT. Interpak Industries Batam area kerja operator berada pada suhu ruangan yang tak normal. Bekerja di suhu yang panas akan mengakibatkan beban di suhu tubuh semakin menaik serta mengakibatkan tubuh mengeluarkan lebih banyak cairan lewat keringat. Hal ini mengakibatkan penurunan kontraksi otot sebagai akibatnya tubuh mengalami kelelahan. Tujuan penelitian ini buat mengidentifikasi kelelahan kerja serta buat mengetahui faktor-faktor yang berpengaruh pada kelelahan kerja tersebut dengan menggunakan pengujian pada software SPSS. </em>Hasil dari penelitian ini telah menunjukkan bahwa tidak ada pengaruh signifikan antara beban kerja terhadap&nbsp; kelelahan kerja karyawan bagian Operator Produksi <em>Cam Copper Assembly</em> di PT. Interpak Industries Batam.</p> <p><em>&nbsp;</em></p> irwan Douglas Elva Susanti Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 127 137 PERANCANGAN ULANG TATA LETAK FASILITAS PRODUKSI DI PT XYZ https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6270 <p><em>The disadvantage of the current layout is that the layout of each work station is not appropriate, because it does not take into account the degree of proximity between work stations, seen in the initial material picking work station which is located far from the printer machine. The purpose of this study was to find out how the redesign of the layout of the production process at PT. XYz. This research was conducted at PT XYz by analyzing data using From chat, Activity relationship chat (ARC) and then inputting data into Blocpan software. In this study, there are several processes, namely the preparation of raw materials, mixing of raw materials, printing and drying and storage. The results of this study are the coordinates of the preparatory post are (10.98, 18.22), with a length of 22 m and an area of ​​36.4 m. at the stirring post has coordinates (26.07, 18.22), with a length of 8.2 m and a width of 36.4 m. the printing and drying posts have coordinates (30.19, 40.58) with a length of 60.4m and a width of 8.3m. the storage post has coordinates (45.28,18.22) with a length of 30.2 m and a width of 36.4 m. It is recommended to improve the layout of the existing company so that work is more efficient. </em></p> <p>&nbsp;</p> <p><strong>&nbsp;</strong></p> Jenni Napitupulu Arsyad Sumantika Copyright (c) 2022 Computer and Science Industrial Engineering (COMASIE) 2022-12-03 2022-12-03 7 7 138 147