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Decision Support System in Employee Performance Appraisal is a web-based system used to support decision making for outsourcing employee contract extensions. This study aims to provide a decision support information system in employee performance appraisal so that employee performance appraisals and employee contract extension decisions can be carried out systematically. Currently, employee performance appraisals and decision making for employee contract extensions are still done manually using spreadsheets. The method used in the design of decision support systems in the web-based employee performance appraisal is the method of calculating the assessment using the AHP (Analytic Hierarchy Process) method and the prototype system development method. The design of this system provides convenience to the personnel staff and the head of personnel in assessing and making decisions for employees who are about to expire their contract. The system can also be a means for personnel staff in accessing reports on employee data whose performance has been assessed by the division head and makes it easier for personnel staff to make decisions on employee contract extensions. With the system, employees will be more motivated to do their job better.

Technological developments encourage changes in the way decisions are made. In terms of stopping the application of urea fertilizer, farmers still rely on BWD observations. In this study, using the RnD method by directly observing the research location in the farmer group Gapoktan, in the village of Tosari, Kendan district and analyzing the problem then making a prototype which will be tested by experts. In this study, a tool was made using NodeMCU with TCS3200 sensor to detect color, which was then sent via the internet to the database using IoT technology. In this study, using several trials with different parameters of urea fertilizer use and the results of the TCS3200 sensor can detect colors according to what is on the BWD and send data to the database via the internet. In this system, farmers can recommend the use of suitable urea fertilizers outside a certain area so as to minimize errors in the observation on BWD, this will make the use of urea fertilizer to be the right dose.  

The management of production and operations in factory machinery is an optimal management effort in the use of resources consisting of labor, machinery, equipment and raw materials. The production and operations manager directs various inputs in order to produce various outputs or results in units of quantity, quality, price, specific time and location according to consumer demand. Efficiency and effectiveness of the production process to be achieved requires proper scheduling management so that the production output produced can be completed according to target. Management of production and customer orders is still simple, besides that the status of raw material inventories that cannot be directly known can often result in delays in the production process and even production cannot be done as soon as possible. Scheduling orders that enter using the system first in first out where the first order that comes is done, but has not considered the number of orders, priority of customers, maturity of workmanship and engine capacity so that the estimated completion of the order can not be known. To make it more efficient and directed, the Earliest Due Date method is used by sorting the production work based on the closest due date. This method can be used for scheduling on one machine or for scheduling on several machines (parallel machine) so that the scheduling management information system can manage effective production scheduling and produce production reports automatically as needed.

The recruitment of new mechanics at Mataram Sakti is no longer through the training process at the head office, but new mechanics are placed at the dealership accompanied by the chief mechanic as a supervisor, with the aim of providing training to new mechanics in order to be able to service or periodically repair Yamaha products especially the latest motorbikes namely Yamaha NMAX, because of the flurry sometimes the mechanical head is not in place so that when the mechanic is experiencing problems it cannot directly ask the mechanical head causing the handling of repairs to be less effective and efficient. One way to overcome this is to create a web-based expert system application with a forward chaining method so that the chief mechanic can transfer the knowledge he has into the computer. Forward chaining method is a search technique that starts with known facts and then matches these facts with the IF part of the IF-Then rules, so that conclusions can be drawn. This expert system was built using supporting software including, Macromedia Dreamweaver MX, PHP script language, MySQL database and WAMP server. The expert system for diagnosing damage to Yamaha NMAX motorcycles using the forward chaining method can be used as a new mechanical learning media in diagnosing damage to NMAX motorcycles and as a means of chief mechanics transferring their knowledge. 

This study generally aims to design an information system that can handle problems in putting and sorting goods into warehouses at CV. Sekar Intan KIC Gatsu, Semarang. In terms of using the Information System, CV. Sekar Intan KIC Gatsu, Semarang. In the transfer and sort of goods in the warehouse still using a manual system when the implementation, warehouse employees must take and place the goods to the warehouse that has been determined each - each type of item, so employees must calculate the number of items when the goods take place, here various problems occur, because it requires some HR to manage the warehouse performance process at CV. Sekar Intan. To support the research, researchers used Research and Development (R & D) research methods through the microcontroller-based moving robot design simulation design stages that have been tested by experts declared valid with Valid validity levels and final product development design simulation prototypes carried out. goods transfer robot uses Arduino IDE development software that is integrated with Arduino Mega 2560, 6 pin line sensor, dc motor, motor driver, servo motor, motor driver, lcd, and has been tested in the field by General Adv. Administration and HRD as users / users and stated to be very effective. Based on the results of the research and discussion, it can be concluded that the robot design system developed can overcome the problems in the old system on the CV. Sekar Intan KIC Gatsu Semarang, so as to produce a system that can facilitate work processes and parking processes for employees to be more effective and efficient.

Recent technological developments determine humans to be creative in creating tools that implement technology in it with the aim of facilitating human tasks in daily activities. Inappropriate use of fertilizers can cause losses, both losses on fertilizer, on plants, as well as on the soil and the environment around fertilization. Losses on plants such as unhealthy plant growth and susceptible to disease pests, plant yields are not as expected or low. From the background above, the writer found an idea to create a system or tool that can help farmers in determining the dose of Nitrogen fertilizer in their rice plants, through the storage of the dosage data of each land. The user did five scans, from each scan producing RGB values, each RGB value from five samples was then matched with the BWD dose color indicator. The sample dose results are then sent by the NodeMcu microcontroller to the webserver database. Based on the assessment of the test conducted by 10 Users by Gapoktan Farmers Group of Tosari Kendal Village, the total value of 372 that has been averaged to be 37.2 is between 31 - 40 which is classified in the category of "Very Valid or Very Effective".

In all section of inventory management, including inventory management in a hospital, minimize cost and ideal inventory accommodation against demand has always been a primary goal (Varghese, 2012). Nearly a third of the operational success of a hospital is in the field of medical supplies. In its usual way, inventory  management in hospitals using the approach to the demand usage, the characteristics of the item and the estimate of the demand. The model presented in this study accommodates that common approach which use a combination of inventory safety stock limit, Economic Order Quantity, and reorder point in a information system dashboard that capable to provide quick and easy information about the condition of inventory management. The result of the system are used for the hospital pharmaceutical inventory management in integration with the INACBGs  to optimize the inventory performance.  

This paper determines by simulation the temperature profiles of a thick carbon fiber/epoxy laminate during its cure process. The one-dimensional model of heat transfer is solved by using a finite difference numerical scheme. In the process, the same physical and thermal properties of materials used by ZhanSheng et al. are employed. The temperature is calculated through a judicious formulation and application of the Alternating Group Explicit (AGE) iterative method developed by Evans and Sahimi. A fourthorder Runge Kutta method is applied for the cure. The AGE scheme proves to be a viable iterative method with respect to stability, efficiency and rate of convergence.

KemajuanTehnologitelahmembuat metode penerapan pekerjaan dengan menggunakan sistem internet dan komputerisasi, yaitu perkembangan globalisasi teknologi akan membanjiri pasar Asia Tenggara, khususnya dunia maritime. Dengan menggunakan sistem internet ini akan mempermudah hubungan komunikasi untuk memperlancar pekerjaan di dunia maritime. Dalam mempersiapakan generasi muda dibangku kuliah, maka kita dapat menyiapkan materi perkuliahan dengan sistem pembelajaran yang menggunakan sistem link internet baik itu jaringan yang off line maupun on line.Materi perkuliahan stabilitas kapal yang biasanya dilakukan dengan sistem manual sekarang bisa diajarkan dengan sistem jaringan, yaitu mahasiswa dan taruna bisa mengakses link dengan dosen pembelajaran, dan hal ini bisa dilaksanakan dimanapun asal ada jaringan, sehingga mahasiswa bisa belajar sendiri dengan memanfaatkan sistem internet baik di asrama maupun di luar kampus.Stabilitas kapal sangat penting digunakan sebelum maupun ketika kapal di tengah laut untuk keselamatan pelayaran. Dengan sistem kalkulasi yang dihubungkan dengan internet, maka akan mempermudah komunikasi antara agency dengan chief officer yang akan melakukan perhitungan stabilitas kapal tersebut.

One of the survey activities carried out at the Baitul Giradh Baburrayyan Cooperative was regarding the coffee production of members who are members of the Baitul Oiradh Baburrayyan Cooperative organization, which aims to speed up the data processing process and make it easier to produce reports on production. To carry out these activities quickly and precisely, it is necessary to make an application as a tool in the data processing and presentation of data that will be needed by data users. This data processing application is made using the gambas programming language.

Chronic kidney failure is the failure of kidney function in maintaining metabolism and fluid and electrolyte balance in the body. Chronic kidney disease initially does not show significant symptoms and signs but can develop rapidly into kidney failure. Kidney disease can be prevented and treated if known earlier. One way to find out chronic kidney failure is to detect using data mining. Iterative Dichotomiser 3 (ID3) algorithm is one of the classification methods and is a type of method that can map or separate two or more different classes. Based on the measurement of performance classification of 80% of training data from 400 data used, it shows that the accuracy value reached 96.25%. It can be concluded that the ID3 Algorithm method is feasible to be used in research predictions for chronic kidney failure.

Classification is one of the most widely used techniques in machine learning. Text classification is the process of classifying data according to pre-determined groups or classes. Where in most cases, text classification uses labeled training data to obtain the rules used to classify test data into predefined groups. In this study, it is proposed to use CountVectorizer for Indonesian text classification which will be compared with TF-IDF Term Weighting and its three feature levels, namely Character Level, Word Level and N-gram Level as feature extraction which is implemented together with Naive Bayes classification and the BPPPTIndToEngCorpusHalfM dataset. To compare the classification performance, this study uses 10-Fold Cross Validation and Split Data using a ratio of 90:10, while to evaluate the accuracy of the authors using the F1-Score and AUC with the hope that this study will get good accuracy results so that it can be used as a reference to be developed using another method. The F1-Score accuracy obtained in this study was 0.93 and the AUC score was 0.95.

Gamerground is a computer shop engaged in the sale of laptops, computers, spare parts, accessories supporting and providing repair services. The marketing process is less than optimal because it only sells by phone or social media. There are some problems that occur between them : 1. Stock management is not optimal because of frequent discrepancies between stock records with the amount of goods available so often consumers feel disappointed with the services provided, 2. The issue of uploaded ad duration in uploaded social media will alternate from one product content display to another in a relatively short period of time, 3. The absence of management of consumer sales transactions thus requiring recording of repeated transactions, 4. The decline in sales turnover in recent months, 5. The management of customer or consumer data is less noticed. Based on these problems, this study aims to design a web-based online sales information system mobile on gamerground. This research uses the development of SDLC waterfall model system which consists of planning, analysis, design, implementation and maintenance. Using PHP and MySQL Server programming language as database. The results of research in the form of Online Sales Information System Web-Based Mobile that can facilitate consumers to view products, make reservations for consumers and management for the admin. This information system is equipped with product management features, order data management, customer data management, preparing order reports and payment confirmation. So that this information system can provide convenience both consumer and admin on gamerground.

The community's need for electricity is getting higher, so alternative energy sources such as solar heat are needed to replace energy sources from fossil fuels in meeting electricity needs. In this paper we design a two-axis solar tracker with an LDR sensor. A sun tracking system is a unit that is combined into one to control the position of the tracking device with the aim of making the surface of the solar panel module always facing the direction of sunlight. This research discusses the Prototype of the Sun Tracking System in Arduino Based Solar Power Generation Systems to get maximum solar energy. This system will make solar panels move automatically so that sunlight absorption can be maximized. The main control uses Arduino nano which gets input values ​​from the LDR sensor then is processed to the output system. With the control system method can automatically be seen the difference in the results of a fixed solar panel with a solar panel with a tracker, from the comparison we get a solar panel with a tracker to get more optimal results.  

Sistem Pendukung Keputusan merupakan sistem informasi interaktif yang menyediakan informasi, pemodelan dan pemanipulasian data.Sistem itu digunakan untuk membantu pengambilan keputusan dalam situasi yang semiterstruktur dan situasi yang tidak terstruktur. Akibat target tahunan perusahaan masih sulit untuk dicapai, juga dikhawatirkan apabila konsumen berpindah ke perusahaan lain yang mungkin memiliki produk yang serupa dengan harga lebih murah. Oleh karena itu, harus dilakukan pembaharuan strategi promosi dalam bentuk potongan harga atau diskon khusus untuk konsumen yang total pembeliannya terbanyak dalam kurun waktu setahun. Berdasarkan permasalahan yang ada, maka dibuatlah suatu program sistem informasi pendukung keputusan pelanggan tahunan dan pemberian diskon melalui rekap total pembelian konsumen dalam kurun waktu setahun. Untuk metode perhitungannya sendiri menggunakan Metode SAW sebagai pendukung keputusan pemilihan pelanggan terbaik dan TOPSIS sebagai pendukung keputusan pemberian diskon. Dari hasil penelitian dihasilkan : dengan menggunakan bahasa pemrograman PHP dapat digunakan untuk membantu perusahaan untuk memilih pelanggan terbaik dan penentuan diskon secara valid, aplikasi yang telah dibuat dapat digunakan sebagai alat bantu bagi pengambil keputusan dengan tetap berbasis pada sistem pendukung keputusan lebih efektif dalam pemilihan pelanggan terbaik dan penentuan diskon menggunakan metode SAW (Simple Additive Weighting) dan Topsis (Technique for Order Preference by Similarity to Ideal Solution). kata kunci : SPK, SAW, TOPSIS

Waqf information system In April 2020 shows the number of waqf land in Indonesia has an area of ​​51,259.84 Ha. More waqf received in the form of land creates a problem of disputes and disputes that lead to legal cases Muhammadiyah is the second-largest Islamic organization that has assets in the form of waqf land that has not been able to resolve existing problems. In this study, an analysis of legal potential and waqf land disputes is used using ID3 Algorithm to classify potential land disputes based on the status of the land deed, owner's name, location of waqf and its use so that it can produce data on the ownership rights of waqf land which has the potential for legal disputes and no legal disputes. research shows that potential legal problems are still present. The ID3 algorithm is able to produce information as a basis for reducing disputes and the loss of waqf land.

Based on the results of observation, the learning method used in SMP Muhammadiyah 3 Kaliwungu is in the form of discourse, discussions, question and answer with the book media. Learning methods that have been applied so far have not had enough impact on students' level of understanding. The method used is less successful, so students feel bored and bored. This study offers a solution for multimedia utilization with the Mind Map method as an interesting learning media, where computers can display text, images, videos and audio so that students can have a pleasant impression in the learning process. The validity value of media experts is 2.9 which is declared feasible, while the validity value of material experts is 3.3, which is declared feasible, and increases students' understanding and interest as users from 58.5% up to 80.5%.

Security aspects is needed in various fields of life today. Safety is becoming a concern for everyone. One of the important concerns is the security of the room. The indoor security system uses Raspberry Pi and RFID based Firebase Cloud Messaging and Motion Detection Camera, is a room security system that includes expensive equipment, so this device is designed for protection or robbery and also provides assistance in advance. . The security system in this room consists of several parts, namely Raspberry Pi as a brain system, selenoid door lock as an electric lock on the door, RFID system and CCTV camera as a detector of the amount of human movement, PIR sensor as a detector of human temperature, alarm as an indicator of intruders which transfers rooms, and database applications as user storage databases for security recorders  

Data collection on employee attendance at a company is a must, with the aim of monitoring discipline, calculating employee salaries, and other needs. Data collection on employee attendance at companies that are used today is very diverse, following the development of technology. The United Tronik Semarang office, which employs relatively many employees, currently uses a manual card attendance data collection system that attracts researchers to make the United Tronik Office the object of research.  Fingerprint is one of the hardware used to support employee attendance data collection which is relatively simple and easy to reach, the accuracy and ease of operation make the fingerprint attendance system more and more in demand. One of the human error problems in the attendance data collection system is attendance recording errors, especially for employees with shift work hours. Arrangement of work shifts in programs built with Visual Basic 2010 can minimize attendance recording errors, because it can set the recording time for employees. To support the ease of data access and shift settings, the researcher uses a Client Server database system with SQL Server 2005 Software.

The Advancement of Science and Technology (Science and Technology) has been widely felt by the general public. Many people enjoy facilities or tools that can simplify and speed up their work. The advancement of science and technology covers various fields, including electronics, automotive machinery, medicine and others. Progress in the electronics sector is growing very rapidly. For example, now many electronic devices are used by the public, such as radio, television, fans and others. The advancement in the electronics field is increasingly sophisticated and modern. For example television, in ancient times we had to press the buttons that were attached to the television, to move the television waves, adjust the volume, and use other adjustment buttons. But now no longer, we can control or regulate the functions that exist on the television from where we sit using the remote control. In modern times like today remote control devices need to be developed so that we can control things from where we sit or from whatever we want, so that human work becomes easier and faster.