The increasing of digital technology today has helped many people to fulfill their needs. But the election system, still conventionally using paper in its implementation. Elections in general still use a centralized system, where there is an organization that manages it. Some of the problems that may occur in traditional electoral systems are that there are organizations that have full control over the database and system, so the possibility of hacking the database is quite a big opportunity.Blockchain innovation is one arrangement that can be utilized in light of the fact that it has a decentralized framework and the whole database is duplicated by all clients. Blockchain itself has been used by Bitcoin and Ethereum cryptocurrency which is known as a decentralized system. By using the blockchain in database recording on an e-voting system can reduce one source of fraud that is database manipulation. This study discusses the recording of voting data using blockchain technology. The implementation of Smart Contracts contained in the Ethereum Blockchain will be implemented to create this voting system

Information security problems always increase every year. One way to minimize problems related to information system security is to establish an SOP. This study was conducted in koperasi simpan pinjam for several reasons that there has never been an assessment related to the level of security of the information system used, there are threatshave occured, and there do not have documented information system security procedures. The SOPs compiled in this study are based on the ISO/IEC 27002:2013 framework. The method used is qualitative with the OCTAVE framework to process the information obtained. Meanwhile, to calculate the value of each risk, FMEA is used. This study shows that 22% of the risks invloved in koperasi simpan pinjam have low categories, 59% medium categories and 19% high categories. The final result of the stiff research is the proposed 8 policies and 12 information system security procedures for koperasi simpan pinjam.

Kampus Notohamidjojo merupakan kampus yang tergolong masih baru yang digunakan oleh Fakultas Teknologi Informasi Universitas Kristen Satya Wacana. Gedung ini berdiri 3 tahun lalu, meskipun gedung ini masih baru tetapi sudah ada beberapa kerusakan dari infrastruktur, fasilitas laboratorium komputer dan furniture. Pihak yang menangani hal tersebut adalah bagian sarana dan prasarana fakultas. Sarana dan prasarana dari fakultas mengalami kendala ketika melakukan pengelolaan kerusakan yang ada, maka dari itu dengan berkembangnya teknologi yang semakin maju banyak platform yang dapat dimanfaatkan untuk melakukan pengelolaan kerusakan tersebut. Platform yang digunakan yaitu smartphone Android dan website. Perancangan sistem ini menggunakan platform Android untuk melakukan proses pelaporan kerusakan dan website digunakan untuk melakukan manajemen kerusakan. Perancangan ini difokuskan untuk membuat desain antarmuka aplikasi yang user-friendly. Desain yang diterapkan menggunakan metode Human Centered Design (HCD) karena dengan menggunakan metode ini dapat menghasilkan antarmuka yang sesuai dengan kebutuhan pengguna. Perancangan ini juga menggunakan teknologi dari Hybrid yang dimana dengan menggunakan teknologi tersebut sistem ini dapat berjalan di Android dan iOS. Pengujian terhadap antarmuka dilakukan menggunakan metode End User Computing Satisfaction (EUCS) dengan mendapatkan hasil lebih dari 90,0 yang menandakan bahwa perancangan sistem pelaporan kerusakan menggunakan metode HCD dan EUCS ini valid dan mampu untuk memenuhi kebutuhan yang diperlukan dari pihak sarana dan prasarana Fakultas Teknologi Informasi.  

With the increasingly of the modern era, more and more diseases that arise due to human lifestyle and bacterial transmission. One of them is gastritis which occurs because of inflammation that occurs in the lining of the stomach which makes frequent pain in the stomach. From these problems, it is necessary to make an expert system application of gastritis disease which aims to provide information to the public to know the early symptoms of gastritis from an early age. The process of diagnose using the certainty factor method The methods in this study are data retrieval, system design, system making and system testing.From this research, it produces an expert system application that can diagnose the type of disease with the first test case 98.848%, the second test case 99.8464% and the third test case with the results of 99.99115264% correct and in accordance with expert knowledge. System testing is done by using black-box testing that shows the function of each unit of application 100% successful.

Drought is a natural disaster that occurs slowly and lasts a long time. Bantul and Gunung Kidul Regencies, Special Region of Yogyakarta are also areas affected by high drought risk. This happened because the area was the result of the construction of a cement factory and limestone mining along the Sewu Mountains. Prediction and classification of areas affected by drought can be done more accurately over large areas by extracting vegetation indices through remote sensing imagery. This research was conducted to provide information about the potential risk of drought in the region using Landsat 8 OLI spectral vegetation index data. Prediction or classification of drought potential using Artificial Neural Network. Vegetation index used in this study is NDVI, TCI, VCI, and VHI. Correlation results between vegetation indices showed the highest correlation occurred between the vegetation index TCI and VHI with the potential for a medium drought of 0.501 and the potential for a high drought of 0.684. Also obtained are the results of the classification of 9 villages that fall into the category of high drought potential (High Risk). Accuracy results and Kappa values indicate that Random Forest is the best method used with a breakdown of values of 99.91% and 99.81%, respectively. Spatial prediction results are performed using Inverse Distance Weighted (IDW) on vegetation index and prediction. Testing of spatial relationships between villages that have the potential for drought is done using Moran s I. analysis.  

The review of the users of one application is of great help to development in improving the quality of the application and may be the means for assessments that users feel satisfied or not. The study conducted a sentiment analysis of the Ruangguru application by testing the three classification models such as Naive Bayes, Random Forest and Support Vectors Machine. The study has yielded results that from Random Forest classification model 97,16% by using Cross Validation and an AUC score of 0.996. Then accuracy with the model of Support Vector Machine classification support results in accuracy rate of 96.01% to an AUC value of 0.543 and accuracy in the testing of Naive Bayes classification model was 94,16% of AUC score 0,999. This study shows that an increase in accuracy from previous studies of 7.16% with Random Forest s final cut as a Random Forest classification model with the best performance.

The human need for technology and the availability of adequate infrastructure is evidence that technology is now a part of basic human needs. The increasing number of journals and scientific papers, it must be more selective in selecting and sorting even though there are already many online service providers and journal portals. Research on search engines and plagiarism and recommendation systems has been carried out with various methods deemed appropriate to improve the performance of the system itself, this paper has the purpose of calculating the similarity between one article with another article by implementing n-gram and tanimoto cosine. The number of articles tested was forty-three titles and abstracts, tested fifty times with randomly selected keywords, by breaking down each title and abstract sentence into n characters (n = 2 to 8) including spaces and punctuation, then counted similarity with the query or keyword used for system testing. The test was conducted using several threshold variations from n = 2 to 8. After observing fifty times the threshold test of 0.15 has the highest accuracy at n = 4 at 0.92, the highest precision at n = 3 at 0.42 and the highest recall at the test n = 2 = 0.44 .

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. 

Pos Indonesia in increasing the marketing of its products by innovating with its products, especially in the digital market sector. The purpose of this study was to determine how much influence the product strategy has on product marketing. This study uses a quantitative calculation method with data collection techniques using a questionnaire. The population in this study were 32 people. The technique of taking sample members in this study is done by saturation sampling technique that is the technique of determining the sample if all members of the population are used as samples, because the total population is equal to the number of samples, the number of sample members is 32 people. The results of this study have a significant effect between product strategy on product marketing at PT. Pos Indonesia Branch Tuhemberua, North Nias Regency.

Talang Gantung Adventure is engaged in learning services outside the classroom or open air which is usually called outbound. In carrying out operational activities there are always financial transactions. However, in Talang Gantung Adventure, financial management still uses manual recording, which is recording in a ledger. Financial reports to the owner of the Talang Hang Adventure are performed using Microsoft Excel. Manual Financial Management results in vulnerability in storing financial data and is difficult to find data so that it has not been effective and has difficulties in preparing financial reports.
Based on this research the authors designed and made a financial management accounting information system website application Talang Gantung Adventure. The purpose of making this system is to facilitate the recording of financial transactions, facilitate the search for data and be safer in storing Talang Gantung Adventure data storage, and to produce financial reports that are easily reported to the owner of Talang Gantung Adventure wherever and whenever.