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INDONESIA
Jurnal Mandiri IT
Published by Institute of Computer Science
ISSN : 23018984     EISSN : 28091884     DOI : https://doi.org/10.35335/mandiri
Core Subject : Science, Education,
Computer Science & IT Library & Information Science Mathematics
The Jurnal Mandiri IT is intended as a publication media to publish articles reporting the results of Computer Science and related research.
Arjuna Subject : Ilmu Komputer (semua kategori) - Kecerdasan Buatan
Articles 217 Documents
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Face recognition system with vigenere cipher cryptography for document security Sukri Sukri; Luluk Elvitaria; Wandiah Ayu Barus
Jurnal Mandiri IT Vol. 11 No. 4 (2023): April : Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v11i4.185

Abstract

The issue of data security and confidentiality is one of the most important aspects of an information delivery system. In this case, it is closely related to how important it is that the information be sent and received by interested parties. Information will no longer be useful if, in the middle of the delivery process, the information is intercepted or hijacked by unauthorized people. Computer security is something that is very important in this information age, especially for an organization or company. Data confidentiality The computer security problem is very important in this information age, especially for an organization or company because documents are some of the most important data for the continuity of the company's operations. The branch of science that studies ways to secure data is known as "cryptography." The Vigenère-Chiper algorithm is one of the cryptographic methods for encoding text. This study aims to create a cryptographic application that can encode text and send encrypted text over a network based on the Vigenère Chiper algorithm. This application performs cryptography on text in the form of letters, numbers, and symbols. The key used is alphanumeric, which is a combination of letters, numbers, and symbols. The results of this study are in the form of an application that can send encrypted text messages through a local area network (LAN) so that the confidentiality of the message can be maintained.
Collaborative learning to improve communication skills in information and communication technology subjects Rizki Koirum Hasibuan; Detri Amelia Chandra; Sri Wahyudi; Agung Setiawan
Jurnal Mandiri IT Vol. 11 No. 4 (2023): April : Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v11i4.186

Abstract

The process of learning and teaching in vocational schools must be standardized to the needs. Learning models, methods and media must support mastery of communication skills (Communication Skill). The aim of this research is to find out how effective the use of E-learning and Collaborative Learning is to improve Communication Skill on information and communication technology. Linearity test concluded that there is a significant linear relationship between each independent variable (Use of E-front and Collaborative Learning) with Improved Communication Skill. The normality test to get the results of the research data is not normally distributed, so the data is included in non-parametric statistics and uses the Mann-Whitney U test to get results that between the research class and the control class there are differences in learning outcomes in information and communication technology.
Feasibility analysis of household electricity installation in Klambir V village Hamparan Perak district Deli Serdang regency Adi Sastra Pengalaman Tarigan; M.Rizki syahputra; Muhammad Fahreza
Jurnal Mandiri IT Vol. 11 No. 4 (2023): April : Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v11i4.193

Abstract

Household electrical installations over time experience change both in quality and quantity. The declining quality of electrical installations and changes in the number of load points greatly affect the feasibility of electrical installations and the safety of the users. This research was conducted to know the percentage level of feasibility of household electrical installations and the factors that cause the infeasibility of household electrical installations. This research is a qualitative research study using a descriptive approach which was carried out in Klambir V Village, Hamparan Perak District, Deli Serdang Regency. The objects studied were 20 houses with the sampling technique used in this study used a random sampling technique. The instruments used were observation, interviews, and documentation. The data obtained from this study is the Percentage Level of household electrical installations in Klambir V Village, Hamparan Peraak District, Deli Serdang RegencyGround resistance value is still quite large and categorized as "not feasible" for a grounding system used by a building. soil content or soil resistance is still 7.91 ohms and the electrode rod uses 1 rod.
Educational data mining for mapping the comprehension of personality subject using K-Means algorithm (case study of SD Insan Mulya) Wiwiet Herulambang; M Mahaputra Hidayat; Nabila Amanda Putri
Jurnal Mandiri IT Vol. 11 No. 4 (2023): April : Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v11i4.194

Abstract

The government has emphasized the importance of character education since the elementary school (SD) level by providing various subjects as an effort to build personality/character for each student. It is important for teachers and schools to know the level of understanding in their students. This research is for. This study uses the K-Means Clustering Algorithm method to help map students to the level of understanding of the Personality subject. The results of this study indicate that clustering using the K-Means Algorithm method contains 4 effective clusters in mapping the understanding of personality subjects. The result of the percentage of clusterization results with interviews is 89.39% while the percentage of software is 91.70%. The conclusions obtained in this research are the subjects of Moral Education, Religious Education, Citizenship Education are included in the Subjects that can affect the student's personality.
Web-based clothing and fabric stock data processing information system at PT. Crevis Tex Jaya Denada Fatimah Zahra; Desy Yulianti
Jurnal Mandiri IT Vol. 11 No. 4 (2023): April : Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v11i4.209

Abstract

Technology in the era of globalization plays an important role in supporting daily life activities, both in the fields of education, business, entertainment, government, and others. Computers as a manifestation of technology facilitate human work with one of its tools, namely information systems commonly used for data processing, but many companies currently still use manual data processing which has the potential to cause data management errors. The proposed solution to the problem requires the provision of computer equipment and human resource training. PT Crevis Tex Jaya, famous for its clothing and fabric business, must have an information system to handle clothing and fabric inventory data that is computerized, MySQL is used as a database server to facilitate data query. The following study produces an apparel inventory data processing system that supports the implementation of data processing to minimize errors, improve work efficiency, and speed up reporting.
Digital Multimedia in the form of an Android-based e-module Ikhsan Ikhsan; Isnardi Isnardi; Novinaldi Novinaldi; Ahmad Fikri Fajri; Ade Putra Nanda
Jurnal Mandiri IT Vol. 12 No. 1 (2023): July: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i1.214

Abstract

In general, the purpose of this e-module is to limit the use of paper in making learning modules that are appropriate to the teaching material, and the specific goal is how to make learning material packaged in an attractive form. The most fundamental problem is that students are not interested in learning by using modules in text form, plus they prefer applications on smartphones, especially Android. However, most books and modules can be read through the gadget in pdf or epub format. However, from the children's point of view, it would be more interesting if it was packaged in digital multimedia that involved animation and sound. This research was built using the Luther Sutopo method, which involved six stages. The results of the research are digital module applications based on Android. Testing of this e-module application was conducted on several elementary school children, with 90% results being able to do the quiz correctly.
Product analysis analysis at Yuyun Cell Mobile shop with the monte carlo method Putri Novrianti Iswanto; Ardy Januantoro
Jurnal Mandiri IT Vol. 12 No. 1 (2023): July: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i1.215

Abstract

In the development of today's business world, business is growing rapidly everywhere and of course the competition is also getting tougher. yuyun cell shop is one of the businesses that often has problems with cellphone product stock, with this the authors conducted research to help predict product stock and reduce dead stock in it. In this case the research method used is waterfall because the approach used for research is systematic and for the analytical method used is the monte carlo method to predict product stock sales because it has algorithms to simulate various systems and their mathematics. The Monte Carlo method is used to determine the prediction of cellphone product stock later to help Yuyun's cellphone shop in optimizing and maximizing cellphone sales. The results of this study are to determine the accuracy of future cellphone stock predictions, with predictions for three categories based on the price range of mobile phone products, namely high end getting an accuracy of 99%, then for the medium category getting a simulation accuracy of 98.14%, and finally low category gets prediction accuracy. 98.16% accuracy.
Application of the servqual method for evaluation of PDAM service quality Adelia Alviyana; Astrilyana Astrilyana
Jurnal Mandiri IT Vol. 12 No. 1 (2023): July: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i1.219

Abstract

PDAM Tirta Rangga Ciasem is a regional company responsible for managing and meeting the clean water needs of the community in Ciasem District. Improving the quality of service is one of the marketing strategies that emphasizes the fulfillment of customer needs. Evaluation of customer satisfaction with the management and fulfillment of clean water must be carried out as a form of service quality assessment. Using the Service Quality (Servqual) method, an evaluation questionnaire is given to customers with evaluation criteria based on reliability, assurance, tangibility, empathy and responsiveness. Based on the results of the calculation of the population and sample requirements, 129 samples were taken from a total of 190 existing customers. From the results of collecting questionnaire data completed by 129 samples, data processing was performed, which found that the existing GAP value showed that the majority of PDAM customer communities were satisfied with the current service. With the best GAP of 0.51 which shows the service and attitude of the officer is very good while the worst GAP is 0.82 which shows deficiencies in the taste and aroma of water provided in PDAM Tirta Rangga Ciaseme service.
Design of a digital system for community services in the village of kuala II Badariatul Lailiah; Ari Abdilah
Jurnal Mandiri IT Vol. 12 No. 1 (2023): July: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i1.220

Abstract

In this study, the object was taken regarding a web-based community service information system in Kuala II Village, Sui Raya District. In the process of serving the community, especially in the field of making certificates in Kuala II Village, Sui Raya District, previously it was still using a manual system. Where people have to come to the sub-district office and fill out a form and come back again to inquire about the processing and also still have to come back to pick up the results. With this manual system it causes less efficient time. So a study was conducted with the aim of creating a new system that could help and speed up the process of service to the community in Kuala II Village, Sui Raya District. In this research analysis, new information was generated, namely a web-based community service information system in Kuala II Village, Sui Raya District. With this system, it is hoped that it will expedite work and facilitate the community in the process of making services. The conclusion obtained with this new system is that the community can speed up the process of making a statement from the Jelupang Village. While the advice that must be considered is the need for human resources who can run and develop the system properly.
Forensic analysis on discord application using the National Institute of Standards and Technology (NIST) Method Muhammad Koprawi; Fadhli Dzil Ikram
Jurnal Mandiri IT Vol. 12 No. 1 (2023): July: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i1.224

Abstract

Discord has shut down 30,000 communities due to various violations. In addressing the misuse of the Discord application, particularly in the form of sexual harassment, the problem of how to retrieve deleted messages from Discord desktop conversations using the National Institute of Standards and Technology (NIST) SP 800-86 method can be addressed. The NIST (National Institute of Standards and Technology) SP 800-86 method is employed for conducting digital evidence analysis or the process of obtaining information from digital evidence. The stages of the NIST method are Collection, Examination, Analysis, and Reporting. The accuracy level of the files obtained using the FTK Imager application is 16.67%, with the variables being evidence of image files. On the other hand, the ChromeCacheView application achieves 73.33% accuracy with variables including evidence of image files, videos, text messages, accounts, and emails. However, not all text messages are retrieved by ChromeCacheView. Autopsy, with a score of 33.33%, manages to retrieve images and emails.

Page 5 of 22 | Total Record : 217

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