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All Journal IT JOURNAL RESEARCH AND DEVELOPMENT
Syabdan Dalimunthe
Departement of Computer Engineering, Politeknik Caltex Riau
Computer Science & IT Control & Systems Engineering Engineering

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Implementation of Agglomerative Hierarchical Clustering Based on The Classification of Food Ingredients Content of Nutritional Substances Syabdan Dalimunthe; Anggi Hanafiah
IT Journal Research and Development Vol. 6 No. 1 (2021)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/itjrd.2021.6872

Abstract

Health is something very precious. Maintaining health can be done in many ways, one of them by keeping your diet. The correct diet will keep your immune system so that it can avoid various diseases. The proper diet will also put the body in a balanced nutrition state, which all need to be nourished. Nutrient requirements include calories, protein, fat, carbohydrates, calcium, phosphorus, iron, vitamin A, vitamin B, and vitamin C with a mass of 100 grams each. To facilitate the search for nutrients needed, then build a system that can categorize food based on its nutritional status and calculate the average value of nutrients in agglomerative hierarchical clustering using average linkage. Calculation of intermediate linkage methods produces data that has some similarities to the data sought nutrients that can be seen from its index, so precise data are in each group.
Penerapan Gamifikasi Pada Media Pembelajaran Untuk Meningkatkan Aktivitas Dan Hasil Belajar Siswa Kurnia Rahman Agus; Dadang Syarif Sihabuddin Sahid; Syabdan Dalimunthe
IT Journal Research and Development Vol. 7 No. 2 (2023)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/itjrd.2023.10068

Abstract

The demands of the learning process during the current pandemic force teachers and students to carry out digital transformation in the learning process. Especially in the new normal where the learning process is done online. Thus, the learning media made by the teacher must also be adapted to online media so that the learning process can be maximized and increase the activeness of students in learning while online. This study aims to create an online learning media by applying the concept of gamification. The method used in this research is R&D (Research and Development) using analysis, design, and development development models. Stages of analysis are carried out to determine the needs of students when learning online. Then in the design stage, the selection of media formats and media design is carried out, and finally at the development stage, the advanced process of making games with programming languages is carried out as a learning medium. The use of gamification learning media is very practical, which can be accessed by students through their devices at home via the internet network. In the learning process, this game can be used to assist teachers in achieving learning objectives so that they can increase learning activity and the value of students in one basic competency.
Restful API Security Using JSON Web Token (JWT) With HMAC-Sha512 Algorithm in Session Management Syabdan Dalimunthe; Emansa Hasri Putra; Muhammad Arif Fadhly Ridha
IT Journal Research and Development Vol. 8 No. 1 (2023)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/itjrd.2023.12029

Abstract

Information systems are technologies that can help work systematically. However, the existing systems or applications are not yet integrated with one another, making many processes have the same function on different systems, for example the authentication process is built using the web service concept. Integration or interoperability of information system software involving various components, which may create gaps that can disrupt system security. In this study, security has been implemented in web services using JSON Web Token (JWT) with the HMAC-SHA512 algorithm which is stored in browser cookies. From the research results, this concept is very suitable to be applied to applications or information systems on different platforms that use the same service, JWT tokens are also successfully stored in browser cookies. In addition, a comparison was also made between the HMAC-SHA512 and HMACSHA-256 algorithms and in the final result it was found that the total time difference was 185 ms and the average time difference was 6.17 ms. It can be concluded that the HMAC-SHA512 algorithm is 0.9861% faster than the HMAC-SHA256 algorithm.
Co-Authors Anggi Hanafiah Dadang Syarif Sihabuddin Sahid Emansa Hasri Putra Kurnia Rahman Agus Muhammad Arif Fadhly Ridha