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HENGKI TAMANDO SIHOTANG
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Jurnal Mantik
Published by Institute of Computer Science
ISSN : -     EISSN : 26854236     DOI : -
Core Subject : Economy, Science, Education,
Computer Science & IT Economics, Econometrics & Finance Languange, Linguistic, Communication & Media
Jurnal Mantik (Manajemen, Teknologi Informatika dan Komunikasi) is a scientific journal in information systems/informati containing the scientific literature on studies of pure and applied research in information systems/information technology,Comptuer Science and management science and public review of the development of theory, method and applied sciences related to the subject. Jurnal Mantik Penusa is published by Institute of Computer Science (IOCS). Editors invite researchers, practitioners, and students to write scientific developments in fields related to information systems/information technology,Comptuer Science and management science). Jurnal Mantik is issued 4 (FOUR) times a year.
Arjuna Subject : -
Articles 2,151 Documents
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Effect of Information Technology, Investment Knowledge and Financial Literacy Millennial Generation Of Interest Invest in Capital Market Apren Halomoan Hutasoit
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

This research was conducted with the intent and purpose is to determine the effect of Information Technology, investment knowledge, and financial literacy to the interest of the millennial generation invests in the stock market. This research is an associative research with a quantitative descriptive approach. This research was conducted in the city of Medan with a sample of 96 people. The model used in this study is multiple linear regression. The results of this study indicate that information technology affect investment interest. Furthermore, investment knowledge also influences investment interest. And lastly, financial literacy affects investment interest. The results of this study indicate that the more advanced the development of technology, the millennial generation increasingly understands financial literacy, and the millennial generation has investment knowledge, the more it will increase their interest in investing in the capital market.
Single-Board Computer for Affordable Personal Data Storage Server Andika Candra Jaya
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The growing concerns of cloud storage privacy would necessitate local network storage. We are proposing to build do-it-yourself Data Storage server and test its cost-effectiveness. We are comparing homebrew data storage server against pre-built Network-Attached Storage and Cloud Storage providers. We conclude that using homebrew network storage server is slightly more cost effective albeit not as user-friendly to set up. Our recommendation is for user to build one and we provided the guide.
Network Security to Protect Negative Web: A Case Study of the Government of Aceh Syafrinal Syafrinal; Abdus Salam
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The specific objectives of the research include evaluating the extent to which information governance management has been carried out at the Aceh Communications, Information and Encryption Service, and negative web protection that is accessed through the aceh government network in all OPDs and districts/cities throughout Aceh. This research will use 4 (four) stages of information system security audit including; audit planning, preparation, implementation, and reporting. Information system security audit. There are several conclusions drawn based on the discussion on the results of the analysis. The conclusions drawn from this study are 1) Based on the results obtained from this practical work course project, almost all HTTP and HTTPS protocol websites can be blocked using the filtering techniques available on MikroTik, 2) Using a VPN is almost impossible to block using MikroTik because the settings proxy to block VPN is very complicated, and 3) Mikrotik device is able to block almost all websites using Layer7 and mangle and can't turn off VPN traffic.
The Effect Of Product Quality, Responsiveness and Promotion on Customer Satisfaction at PT. Global Graha Sarana Abadi Jeffrey Jeffrey; Rosinta Romauli Situmeang; Christopher Christopher
Jurnal Mantik Vol. 5 No. 2 (2021): Augustus: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The research location was conducted at PT Global Graha Sarana Abadi. PT Global Graha Sarana Abadi is a company engaged in the retail trade of household electrical appliances and lighting equipment. At this time the company is experiencing a decline in customer satisfaction which can be seen from the complaints submitted to the company. In general, product quality is closely related to the product's ability to withstand durability and the ability of the product to carry out its functions. Responsiveness is the ability of employees to serve customers owned by employees. Fast and maximum service will be a separate assessment for employees in the company. Promotion is a product introduction process carried out by the company by providing certain benefits to prospective customers who will buy the product. The theoretical limitation will be limited through marketing management in product quality, responsiveness, promotion and customer satisfaction. This study uses a simple random sampling formula with the Slovin formula. With a population of 136 customers and 30 people to test the validity and a sample of 101 customers. Quantitative research was chosen as the data collection method. The analysis used in the form of multiple analysis methods, determination testing and testing simultaneously test (28.190> 3.09) and partial test (2.779> 1.984), (5.529> 1.984) and (4.794> 1.984). The results showed that product quality, responsiveness and promotion were positive and significant with a coefficient with a ratio of 44.9%..
Performance Analysis of BLoC and Provider State Management Library on Flutter Regawa Rama Prayoga; Alifia Syalsabila; Ghifari Munawar; Rahil Jumiyani
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

A proper choice of state management library can increase the performance of the Flutter for Android application development. BLoC and Provider are the most popular state management libraries nowadays. Unlike setState, which rebuilds all widgets, the state management library allows apps to rebuild only those widgets that have state changes. However, it is not known yet how much it increased the performance by using BLoC or Provider as a state management library. This study focused on the effect of using state management libraries on the widget build process in Flutter. It was conducted by developing setState, BloC, and Provider. The performance was measured by CPU utilization, memory usage, and execution time. Experimental results show that applications that use BLoC result in (1) CPU utilization of 0.45% (2.14% more efficient), (2) memory usage of 23.27 MB (8.19% more efficient), and (3) execution time of 3.54 seconds (16.36% more efficient). The application that uses Provider results in (1) CPU utilization 0.54% (2.57% more efficient), (2) memory usage of 32.01 MB (11.27% more efficient), and (3) execution time of 4.10 seconds (19.44% more efficient). However, it should be noted that these results occur when BLoC and Provider are implemented in the leaf widget.
The Effect of Earnings Per Share, Return on Assets and Debt To Equity Ratio on Stock Prices In Mining Sector Companies Listed on The Indonesia Stock Exchange Period 2015-2019 Dandy Prasetyo; Sunario Leonardo; Mila Yulia Herosian
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

This study aims to examine and analyze the effect of Earning Per Share, Return On Assets and Debt to Equity Ratio have an effect on stock prices in mining sector companies listed on the Indonesia Stock Exchange for the 2015-2019 period. The research method used in this study uses quantitative research methods with quantitative descriptive research that is explanatory research. The population of this research is all mining sub-sector companies listed on the Indonesia Stock Exchange totaling 43 companies. The sample of this research is 11 companies with purposive sampling technique. The data analysis method used is multiple linear regression. The results of the f test where f count 15.364 > f table 2.79 with a significant level < 0.05 shows R Earning Per Share, Return On Assets and Debt to Equity Ratio simultaneously affect stock prices in mining sector companies listed on the Stock Exchange. Indonesian Securities for the 2015-2019 period. The results of the t-test research where the Earning Per Share and Debt to Equity Ratio variables do not have a significant effect on stock prices in mining sector companies listed on the Indonesia Stock Exchange for the 2015-2019 period and only return on assets has an effect on stock prices in mining sector companies that listed on the Indonesia Stock Exchange for the 2015-2019 period. The results of the analysis of the coefficient of determination obtained the Adjusted R2 value of 0.473, meaning that the variation of the Earning Per Share, Return On Assets and Debt to Equity Ratio variables in explaining the Stock Price variable is 47.3%, while the remaining 52.7% is explained by another
Using Preprocessing Text Mining With Nazief-Adriani Algorithms Similarity Of Essay Final Exam Semester MUTIARA SIMANJUNTAK; Joel Panjaitan; Syofyan Anwar Syahputra
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The test is one way to measure the level of student ability in participating in learning. One type of exam given to students is the type of essay exam. This research focuses on making automatic grading for essay-type tests using cosine similarity. This method has several stages such as tokenizing, filtering, stemming, analyzing, weighing words in documents with cosine similarity. The stemming process uses the Nazief & Adriani algorithm. The results of this study are concluded that the selection of words that are considered as keywords in the answer key greatly affects the results of the assessment of the system. This is evidenced by testing applying the cosine law of 89.5%. However, there are several types of questions that are significantly different because there are unique characters in the database and answer keys that do not contain keywords that match the correct answer.
Expert System Diagnosis of Skin Disease in Cat with Forward Chaining Method Ais Achmad Sutrisna; Sidik Sidik; Indra Riana Rahajeng; Muhamad Ryansyah
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

An expert system on cat skin is a system that is intended for cat owners in which there are several problems that often occur based on observations of complaints that often occur for cat owners, from these problems I have conducted a research on several doctors to find solutions to some of the problems that I have researched, from the various problems that I have found I propose to create an expert system for skin diseases in cats with a Web-based forward chaining method. This forward chaining method is expected to make it easier for users to find out what skin diseases are being experienced by cats based on the rules that have been applied in the form of choices from various questions that have been presented to the user to achieve the goal in the form of output results (Consultation Results Report). So in the consultation report the user can find out what skin disease is being suffered by the cat and there are also consultation results that encourage the user to follow up for a direct consultation with the doctor.
Accounting Information Systems And Human Resources Competence: How To Influence On UMKM Performance In Bandung City Inta Budi Setya Nusa
Jurnal Mantik Vol. 5 No. 2 (2021): Augustus: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/jurnalmantik.Vol5.2021.1550.pp1348-1354

Abstract

This study aims to determine how much influence the accounting information system and Human Resource Competence on UMKM performance carried out on UMKM in the city of Bandung. The research method used is descriptive and verification methods with a quantitative approach. The population in this study are the owners and actors of SMEs in the city of Bandung. The sampling technique used is a purposive non-random sampling technique. The method of data analysis in this study uses multiple linear regression analysis which is tested using SPSS 26.0 software for Windows. The results of hypothesis testing in this study indicate that (1) Accounting Information Systems have a positive and significant influence on UMKM Performance (2) and human resource competence has a positive and significant impact on UMKM Performance in Bandung City
Image Processing for Combat Charcoal Identification Based on Maturity Level Musthafa Haris Munandar; Masrizal Masrizal; Yudi Prayoga
Jurnal Mantik Vol. 5 No. 3 (2021): November: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

At this time the processing of coconut shells into shell charcoal is very much done by ordinary people, especially in villages that have a large coconut population. This is because the benefits obtained from the processing of coconut shells can meet the needs of the community. The many desires of the people who want to do the processing of coconut shells, but not accompanied by sufficient knowledge and knowledge of the quality of charcoal desired by buyers, so it is undeniable that the number of coconut shells that have been processed into charcoal but not sold in the market. o with this, it is expected that after using the image processing method can provide knowledge and knowledge to the public about the quality of charcoal that buyers expect, especially to identify the difference in coconut shells that are still not charcoal, coconut shells that are half into charcoal and coconut shells that have become charcoal. This image processing method will classify coconut shell charcoal based on digital imagery with a media interface GUI (Graphical User Interface) that utilizes matlab software.

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