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The research objective is to build a web-based library application. The research method consists of data collection, while the application implementation uses string matching, exact matching, and string matching algorithms. Entity-relationship diagrams are also used in building relationships in the database. Use cases are used as a description of the scope of a system that is built. The conclusion of this study is that; 1) This information facility system is very effective in influencing library admins to look for borrowed books, 2) Providing integration that produces non-digital information in one application, and 3) Librarians can take advantage of web-based automation and manage the circulation of book loans and book returns.

Banyak hal dalam dunia ini yang merupakan implementasi dari graph coloring, karena model-modelnya sangat bermanfaat untuk aplikasi yang luas, seperti  pendaftaran dan proses penjadwalan data instruktur berbasis web ini, Tujuan dari penelitian ini adalah untuk menunjang proses pelatihan virtual dengan menghasilkan jadwal pelatihan secara otomatis dalam seminggu. Terdapat jenis program pelatihan yang berdurasi 1 jam, 2 jam dan 3 jam. Sebelumnya instruktur harus mendaftarkan diri terlebih dahulu dan menentukan berapa jam sesi pelatihannya serta ketersediaan jadwal yang kosong. Penerapan graph coloring dapat membantu merumuskan jadwal instruktur agar tidak berbenturan dengan jadwal instruktur lainnya. Dari hasil penelitian ini yaitu Setiap instruktur yang mengajar dalam seminggu dipilih oleh sistem dengan jumlah slot waktu total dalam seminggu adalah 8x6=48jam. Jika jumlah total jam mengajar para pendaftar mencapai 60, 61 atau 62 jam maka sistem akan menutup secara otomatis.

Kedai HP merupakan sebuah website E-Commerce distributor pribadi yang berfokus pada penjualan smartphone dengan merk dan harga yang beragam. Dengan adanya E-Commerce Kedai HP daya beli masyarakat semakin meningkat karena tidak datang perlu datang lansgsung ke toko untuk bertransaksi. Tujuan penelitian ini membuat website distributor online untuk memudahkan masyarakat dalam bertransaksi dan memberi kepraktisan dalam berbelanja. Penelitian ini menggunakan sistem berbasis Model View Controller (MVC) dengan menggunakan metode Scrum yaitu sebuah metode yang cocok untuk di implementasikan pada pengembangan sistem karena bersifat fleksibel dibandingkan dengan metode waterfall yang bersifat statis. Model View Controller (MVC) salah satu design pattern yang saat ini banyak digunakan sebagian framework untuk melakukan pengembangan aplikasi sehingga E-Commerce Kedai HP dapat menjalankan sistem transaksi dan pelaporan secara otomatis. Pengujian dari penelitian ini menggunakan metode Blackbox Testing yang merupakan teknik pengujian software yang fokus pada spesifikasi fungsional suatu perangkat lunak. Dari hasil pengujiannya menunjukan bahwa fungsional sistem yang telah dikembangkan berfungsi sebagaimana mestinya.

Edukasi tuntunan shalat maghrib dengan mengedepankan multimedia termasuk gambar dan suara dapat mempengaruhi minat belajar anak-anak sehingga lebih mudah memahami gerakan dan bacaan shalat maghrib. Teknologi Berbasis Android Mixed Reality merupakan gabungan dari Augmented Reality dan Virtual Reality menjadi salah satu solusi yang mampu memenuhi kebutuhan multimedia tersebut karena terdapat unsur gambar, suara, serta objek 3 dimensi yang terlihat semi-nyata sehingga menambah daya tarik serta pengalaman menyenangkan bagi pengguna. Penggunaan aplikasi mixed reality membutuhkan bantuan perangkat keras VR Box agar mendapatkan pengalaman realitas yang maksimal. Perancangan aplikasi Mixed Reality menggunakan analisis algoritma Fast Corner Detection, algoritma ini penulis gunakan karena mampu mengidentifikasi sudut citra secara akurat, dan algoritma Lucas Kanade karena dapat mengidentifikasi transformasi citra secara efektif. Dengan adanya teknologi mixed reality ini pengguna bisa mengenal gerakan dasar serta bacaan shalat maghrib dari mulai niat hingga salam. Pengujian aplikasi menggunakan tiga device smartphone android, pada rentang sudut 20°-90° objek 3 dimensi muncul karena marker dapat terdeteksi oleh kamera. Rata-rata objek 3 dimensi ditampilkan dengan waktu 1 detik jika cahaya pada marker terang.

Augmented Reality is a technology on 2-dimensional and 3-dimensional virtual objects that are combined into the real environment that is around us. With the ability of Augmented Reality that is able to change the atmosphere of children’s learning that can be used as a medium of learning in the introduction of mammals for kindergarten children. This AR can provide interesting facilities such as displaying 3-dimensional objects of these mammals along with animal sounds and animations using Smartphones, so that children can interact and be more creative in recognizing these mammals, because children experience their golden age at the age of 4 to 7 years which is a time when children begin to receive stimuli, so that children will be faster to receive and catch on learning from the introduction of these mammals by using Augmented Reality Technology. The results of testing on the Vuforia plugin and making the AR application on Unity can provide a good information result, where the use of AR can bring up mammalian objects by pointing the Smartphone at the marker, so that all mammals can be recognized properly. This shows that children’s interest around 85% in terms of UI/UX appearance, and 70% of children have no problems in running the Mammal Animal AR application

Work is something that everyone will do. This is because by working we will earn money that can make us able to fulfill our needs. But sometimes there are still quite a lot of people out there who don't even know what job is right for them. Therefore the author designed an application called Your Job based on Android, this application will provide suitable job recommendations based on the person's personality. In this study using the fisher-yates shuffle algorithm. Fisher-Yates shuffle algorithm can be applied to randomization of questions. The design of this application also uses the MBTI (Myers-Briggs Indicator) method to make it easier to determine a person's personality. After doing it to several people about this application. They gave a very good response, it is certain that the fisher-ystes shuffle algorithm runs well in randomizing the questions and using the MBTI method the accuracy level is almost 100% accurate.

Games are a means of entertainment that are in electronic media such as smartphones that are made as attractive as possible so that players get inner satisfaction. The development of the game industry is growing quite fast from mobile to desktop. There are many categories of games such as action, strategy, sports, shooter, adventure and simulation. Adventure games are one category of games where players are trained to think in order to complete the game. There are many things that need to be considered, such as visuals on maps or interactions with NPCs (NonPlayer Character), by utilizing technology now learning can be delivered through a game. The characteristics of entertaining games and interesting visual activities will make learning more attractive. Making games will of course use algorithms as features or systems in game making. The a-star algorithm is one that is widely used in making maze games. The a-star algorithm can be applied to the help of the fastest path or movement of the NPC. The purpose of the research is to make a maze educational game using the a-star algorithm as the fastest path search and NPC movement. The test results on games on seven devices got the results that they were successfully run, in CPU usage on mobile devices a minimum of 7% and a maximum of 57%. CPU usage on desktop devices is a minimum of 2% and a maximum of 33%.

Losing is an experience that every human has experienced during his life span, and this is a natural thing. Loss of goods is an event that can make a person panic, especially if the lost item is valuable to him. Therefore, with the development of technology, the author tries to design an application that can be a medium for information on lost items for the community, this application is designed based on Android and is named FindIt. This FindIt app uses Firebase Authentication and Firebase Storage as the main database. This application can be run in real-time because it uses Realtime Firebase. Algorithm testing was carried out between Knuth Morris Pratt and Boyer Moore , and the result is Boyer Moore is faster in string matching. The test results using this algorithm are 100% accurate. Application testing is done using the Blackbox method, where the functions and features of the application run as expected. With this application, it is hoped that the community can help each other to find goods and post their findings on this application

Currently, the food business sector is increasing, one of which is tofu producers in South Tangerang. Many people who want to buy tofu of good quality but do not know the closest distance to the factory is located. In this research, we will use Dijkstra's Algorithm which is applied to the Android software to determine the shortest distance from one point to the tofu factory which is the chosen destination. Using the Dijkstra algorithm, an application will be designed, namely a mobile-based Go-Tofu for finding the closest route to the tofu factory. The route search process is carried out with a graph that has a weight and an area that is connected to a predetermined route. In the application test, it produces the shortest route from a house to the tofu factory with the smallest total weight of 11 kilometers based on the test results in the study.Keywords:Dijkstra’s Algorithm, Android, Flutter, Shortest Line, Tofu Factory.

The charity application is an application used by donors when donating goods easily and quickly in obtaining information on what items are needed, the donation process and clear information about containers. Based on these problems, the authors create a solution by designing the user experience of a mobile-based application that creates the final result in the form of a high-fidelity prototype. With this design, it can make it easier for donors to donate goods easily and quickly. The design process uses the design thinking method which consists of five stages, namely emphatic, define, ideate, prototype and testing. Testing or testing in this study achieves three aspects of UX Attributes that have been determined, namely effectiveness, efficiency and satisfaction by providing a task or mission and a system usability scale. In testing the three aspects by 40 testers, the average value of effectiveness is 85, efficiency 0.117533 goals / second and satisfication 73.3 with high acceptability, the grade scale is the same as C and the adjective rating is good.

The existence of the digital world has given a new impact to all human activities. Not surprisingly, if now all switch to the digital world because on the one hand can make things more efficient and practical. The purpose of this study, the author wants to develop a student data administration application that will be applied at one of the universities with an Android-based platform system. Where this design is made to perfect the limitations of applications that have previously been developed, namely the web, limitations of previous applications at the University, when users (users) access to the online academic menu in the web application, are required to deactivate pop-ups first, that is felt to be inefficient . Based on the existing problems, the author wants to design an application that will be developed on the Android platform by using a sequential searching algorithm for each program function in the application. The system development method itself uses the Waterfall methodology. This method has stages namely: Analysis, Design, Coding and Testing Data collection techniques are obtained from the results of observations (observations) and literature studies. Database as a data storage medium is MySQL. For the PHP and Java programming languages used as an application interface, the application test results are represented in the White box testing and show a valid value of the test results amounting to 6 in the total decision shows the algorithm used is quite good and meets the standard

Everyday busy making plant owners leave their plants, this causes their plants to wither or die, in this study aims to build a smart watering system for plants using the Blynk smartphone application that has been integrated with the Arduino Uno R3 mikrocontroller because it is connected through software Arduino IDE program input to run as desired an which is equipped with a Relay 5V tool deliver voltage, and Aquarium Pumps so that water can flow to plants. Then for Thingspeak it self, it useful to display the moisture value in the soil that will be displayed on the web that has been connected with the Arduino Uno R3. Soil Moisture Sensor to let you know if the soil content is below 400 then the soil is most moist and if the soil above 900 the soil status dry, trough this Smartphone can water the plants with time or use the on / off button that is already available in the Blynk Smartphone app view

Pada teori bahasa dan automata menjelaskan tentang mesin-mesin abstrak yang mana didalamnya terdapat finite state automata yang bisa diimplementasikan kedalam vending machine. Vending machine untuk kota seperti Jakarta sudah bukan perihal sulit untuk menemukannya. Cara kerja secara operasional sudah banyak diketahui prosedurnya, namun perihal bagaimana cara kerjanya didalam mesin tersebut, masih belum banyak yang mengetahuinya, melalui simulasi ini diharapkan pengguna juga lebih paham akan hal itu

The selection of quality gemstones requires a special ability to select and assess the quality of gemstones to be traded. The diversity of types of gemstones and consumers becomes an obstacle in itself when the knowledge and ability of individuals to analyze the quality of gemstones is minimal. The decision-making method used is Fuzzy Analytical Hierarchy Process (F-AHP) method which is widely used in various sectors. F-AHP is easy to adapt to many decision issues; the research proposes a decision-making system using the F-AHP algorithm to analyze the quality of gemstones. The results obtained with the use of F-AHP model in the selection of quality gemstones show the highest quality of gemstones of all stones compared, Rubi 1, with a weight value of 0.152942.

Promotion and introduction of school buildings still uses media such as brochures or pamphlets, because it requires software that can introduce and provide information about specific school buildings in SMK 25 Jakarta. This study aims to provide an introduction to the Virtual Reality 25 Jakarta Vocational High School building using the VR Box as a medium of information about the rooms to prospective new students. This application utilizes the method of research and development (R&D) with the ADDIE model, this model serves to carry out periodic assessments in each phase so that the resulting product becomes valid. The validation test results concluded that the system is valid. Testing the level of user satisfaction after using the Virtual Reality application SMKN 25 Jakarta can be concluded that the average user gives a value of 3.4 or enough on the satisfaction of the application menu display, and gives a value of 3.05 on the satisfaction of virtual mode.

The recording of student attendance at the FTKI UNAS laboratory is still done manually which causes UNAS to have to input a large amount of attendance data every day. This often results in recording errors caused by human error, not to mention if there is fraud by manipulating attendance data. This study uses a microcontroller to design a student attendance monitoring system digitally by identifying student code from the RFID Tag. The system is designed using RFID and NodeMCU modules which will be sent to the MySQL database and will be displayed on the website page. The test results from 100 data obtained 100% identification success with an average reading distance of 4cm. of 100 presence test data, the system can store data with 100% accuracy for the corresponding data, and can read the presence of errors with 100% accuracy.