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All Journal KOMIK (Konferensi Nasional Teknologi Informasi dan Komputer) JURIKOM (Jurnal Riset Komputer) KAKIFIKOM : Kumpulan Artikel Karya Ilmiah Fakultas Ilmu Komputer Jatilima : Jurnal Multimedia Dan Teknologi Informasi INFOKUM JUKI : Jurnal Komputer dan Informatika MEANS (Media Informasi Analisa dan Sistem) RESOLUSI : REKAYASA TEKNIK INFORMATIKA DAN INFORMASI Jurnal ABDIMAS Budi Darma Ulead : Jurnal E-pengabdian JUDGE: Jurnal Hukum Multidisiplin Pengabdian Kepada Masyarakat (M-PKM) Transnational Business Law Journal Marsipature Hutanabe: Jurnal Pengabdian Kepada Masyarakat

Kristian Siregar

Universitas Budi Darma, Medan

Author-ID : 3488170

Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Other

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SOSIALISASI TENTANG PENERAPAN CBT PADA UJIAN AKHIR NASIONAL BERBASIS KOMPUTER DI SMK PARIWISATA IMELDA Berto Nadeak; , Sony Bahagia Sinaga; Kristian Siregar; Edward Robinson Siagian
Multidisiplin Pengabdian Kepada Masyarakat Vol. 1 No. 01 (2022): Multidisiplin Pengabdian Kepada Masyarakat, Maret 2022
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/pkm.v1i01.285

Pada kegiatan pengabdian kepada masyarakat (PKM) yang dilakukan ini bertujuan untuk memberikan serta membantu siswa/I SMK Pariwisata Imelda mengenai cara bagaimana penggunaan aplikasi ujian nasional yang berbasis komputer sehingga siswa/I mampu dan lebih siap dalam menghadapi ujian nasional. Agar tercapainya tujuan tersebut maka metode yang digunakan adalah computer based test (CBT) dengan melakukan ceramah dan praktik serta dapat dilakukan juga dengan demonstrasi aplikasi sebagai simulasi ujian nasional.

JUDICAL ANALYSIS OF THE ECONOMIC RIGHTS IN THE LAKE TOBA NATIONAL STRATEGIC TOURISM AREA IN OF FROM PRESIDENTIAL REGULATION NO.81 OF 2014 CONCERNING SPATIAL PLAN FOR THE LAKE TOBA AREA AND LAW NO.11 OF 2005 CONCERNING THE INTERNATIONAL COVENANT ON ECONOMIC,SOCIAL AND CULTURAL RIGHTS Siregar, Kristian
Transnational Business Law Journal Vol. 3 No. 1 (2022): TRANSNATIONAL BUSINESS LAW JOURNAL Volume 3, Number 1, February 2022
Publisher : Department of Transnational Business Law, Faculty of Law Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23920/transbuslj.v3i1.1391

The ideals of the Indonesian nation as stated in the Preamble of the 1945 Constitution require that the general welfare be realized. To realize these ideals, human rights, in this case economic rights, are one of the indicators used as a basis for implementing a program, decision or regulation. Economic rights are generally described as rights related to the conditions of existence and welfare in terms of owning and utilizing something for their survival. The status of economic rights in the 1945 Constitution and Law No.11 of 2005 places economic rights as rights that must be protected, respected and fulfilled by the state. One of them is in the Tourism sector. Economic Rights play an important role in the creation of a prosperous community life in the area that is the object of Tourism. However, economic rights in reality are often ignored by the government as a consideration in loading policies and regulations, so that in its implementation it creates conflict between the community and the government. The purpose of this research is to find out how the protection and fulfillment of economic rights in the tourism development sector correlates with the level of community welfare

APPLICATION OF THE A* METHOD IN MAKING COURSE SCHEDULING DECISIONS AT STMIK MULIA DARMA Panjaitan, Muhammad Iqbal; Rajagukguk, Denni M; Manalu, Mamed Rofendi; Sihombing, Monang Juanda Tua; Siregar, Kristian
Jurnal Multimedia dan Teknologi Informasi (Jatilima) Vol. 6 No. 02 (2024): Jatilima : Jurnal Multimedia Dan Teknologi Informasi
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jatilima.v6i02.705

One of the biggest issues in managing higher education is course scheduling, where a variety of criteria need to be taken into account in a balanced way, including lecturer availability, classroom size, and student preferences. This procedure can be greatly optimized by using the A* method, also referred to as the optimal path finding algorithm. Applying the A* technique to course scheduling decisions is the goal of this research, which attempts to improve efficiency and happiness for all stakeholders.A customized A* algorithm is designed and implemented as part of the research process to manage scheduling characteristics such lecturer schedule compatibility, space allocation, and time slots. We tested this technique on scheduling data from an Indonesian university. The results of the tests indicate that the A* approach can yield a more optimal.

Penerapan Algoritma Rijndael untuk Mengamankan Teks Tiepsi, Tiepsi; Siregar, Kristian
KAKIFIKOM : Kumpulan Artikel Karya Ilmiah Fakultas Ilmu Komputer Vol 1 Nomor 2
Publisher : UNIKA Santo Thomas

Kriptografi merupakan salah satu solusi yang dapat dimanfaatkan dan dikembangkan dalam menghadapi permasalahan tentang keamanan data. Salah satu algoritma yang bisa dihandalkan dalam keamanan data adalah algoritma Rijndael. Algoritma Rijndael merupakan algoritma kriptografi simetrik yang beroperasi dalam mode penyandi blok (block cipher) yang memproses blok data 128-bit dengan panjang kunci 128 bit, 192 bit, atau 256 bit.Untuk menjamin keamanan dan keutuhan dari suatu data, dibutuhkan suatu proses penyandian,Â dengan melakukan proses enkripsi dan dekripsi. Proses enkripsi ini akan mengubah suatu data asal atau asli menjadi data rahasia yang tidak dapat dibaca. Sementara itu, proses dekripsi dilakukan oleh penerima data yang dikirim tersebut. Data rahasia yang diterima akan diubah kembali menjadi data asal atau asli. Dengan cara penyandian tadi, data asli tidak akan terbaca oleh pihak yang tidak berkepentingan, melainkan hanya oleh penerima yang memiliki kunci dekripsi.

Potensi Tindak Pidana Kriminal oleh Anak Remaja ditinjau dari Faktor Umur dan Pendidikan dengan Metode Multi Factor Evaluation Process (MFEP) Limbong, Riswan; Siregar, Kristian
MEANS (Media Informasi Analisa dan Sistem) Volume 3 Nomor 1
Publisher : LPPM UNIKA Santo Thomas Medan

According to statistics in 2013 there were 535 cases and in 2014 there were 723 cases, and based on the data there was an increase of Â± 1.35%. The cause of this crime is caused by many factors, but if the factors that cause this crime are known to be earlier by the parents (community), perhaps parents can educate their children and can reduce the number of juvenile perpetrators of physical criminal offenses. The physical crimes referred to in this study are: Robbery, Public order theft and murder. Multifactor Evaluation Process (MFEP) is a quantitative method that uses a "weighting system". In multifactorial decision making, decision makers are subjectively and intuitively weighing various factors that have an important influence on their alternative choices. For decisions that have a strategic influence, it is advisable to use a quantitative approach such as MFEP. In MFEP, all criteria are first, which are important factors in making consideration given appropriate weighting. The same steps are also taken for the alternatives to be chosen, which can then be evaluated in relation to these consideration factors. The MFEP method determines that the alternative with the highest value is the best solution based on the selected criteria.

Teknik Pemilihan Alat Kontrasepsi bagi Pasangan Usia Subur dengan Metode Analytical Hierarchy Process Sunandar, Hery; Siregar, Kristian
MEANS (Media Informasi Analisa dan Sistem) Volume 3 Nomor 2
Publisher : LPPM UNIKA Santo Thomas Medan

Contraception is an action to prevent pregnancy. Where currently there are enough tools, methods and types of contraceptives for men or women, implementation can be done in two ways, namely using contraceptive aids or without contraception. The problem that occurs in BKKBN and women's empowerment is the selection of good contraceptives used which still uses a simple computerized system that is using Microsoft Excel applications in the processing process. In solving this problem, the author uses the Analytical Hierarchy Process method to describe the weights that fit the criteria that are appropriate for the selection of family planning tools that are well used in BKKBN and women's empowerment. Analytical Hierarchy Process or often called AHP is a technique for decision making in determining the best choice from several alternatives. AHP is a mathematical model procedure that is well suited for the evaluation of qualitative attributes. These attributes are mathematically quantified in a set of comparisons in pairs. The advantages of the AHP method when compared to other decision-making methods is to have a hierarchical structure as an impact of the criteria taken, to the very detailed and detailed sub criteria

Implementasi Metode Technique for Order Preference by Similarity to Ideal Solution dalam Pemilihan Jenis Kerang Konsumsi Siregar, Kristian; Siagian, Edward Robinson
MEANS (Media Informasi Analisa dan Sistem) Volume 3 Nomor 2
Publisher : LPPM UNIKA Santo Thomas Medan

Shellfish is a type of seafood consumed by consumers. In selecting the right type of shellfish, it must be adjusted to the wishes of consumers. To get optimal results a system is needed that can help in determining the type of shellfish so that consumers feel satisfied. Technique for Order Preference by Similarity to Ideal Solution or TOPSIS is a method with the concept that each alternative is chosen and the best is not only to have the shortest distance of each positive ideal solution, but also to have the longest distance of any existing ideal negative solution . The criteria in this system vary, each tailored to the preferences of consumers or prospective buyers of shellfish provided by the producer. Based on the results of the sample selection shows that the calculation results using the same system with manual calculations. This system is able to provide an election for purchasing shellfish.

Identifikasi Faktor Penyebab terjadinya Kenakalan Remaja menggunakan Metode Multi Factor Evaluation Process (MFEP) Limbong, Riswan; Siregar, Kristian
MEANS (Media Informasi Analisa dan Sistem) Volume 4 Nomor 2
Publisher : LPPM UNIKA Santo Thomas Medan

Juvenile delinquency is a very actual problem in almost every country including Indonesia. Outbreaks of cases of juvenile law violations such as robbery, robbery, fighting, theft, possession of sharp weapons and misuse of narcotics as well as various other legal violations. With so many cases of violations of the law it is illustrated that in the era of complete human development, it is expected that adolescents have the rights and obligations and responsibilities to develop the nation and state but many do unlawful acts. The Multifactor Evaluation Process (MFEP) method is a quantitative method that uses "weighting" where in multi-factor decision making, the decision maker is subjectively subjective and intuitively required to weigh various factors that have a dominant competing influence on the alternatives of their choices. Decisions that affect strategic policy, it is recommended to use quantitative approaches such as MFEP, to make an appropriate weighting must be given consideration. The same stage must also be carried out on the alternative to be chosen, which is then evaluated in relation to all factors taken into consideration and determining which alternative with the highest or maximum value is the best solution based on existing criteria.

Pemberian Motivasi dan Pembelajaran Geometri tentang Garis dan Sudut kepada Anak-Anak Asuh di Panti Asuhan Gratia Children Medan Tampubolon, Kennedi; Siregar, Kristian; Tarigan, Pilipus
ULEAD : Jurnal E-Pengabdian Volume 5 Nomor 1 Juli 2025
Publisher : Fakultas Ilmu Komputer, Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Melaksanakan Pengabdian Kepada Masyarakat (PKM) menjadi suatu keharusan bagi setiap dosen professional. Hal ini dilakukan untuk menyempurnakan implementasi unsur unsur Tri Dharma Perguruan Tinggi yang berisi: Pengajaran, Penelitian dan Pengabdian Kepada Masyarakat. Dalam hal ini STMIK MULIA DARMA Rantauprapat adalah salah satu Perguruan Tinggi yang konsisten dalam melaksanakan Tri Dharma Perguruan Tinggi. Pada kesempatan ini kegiatan Pengabdian Kepada Masyarakat oleh Team Pelaksana dilaksanakan di Panti Asuhan GRATIA CHILDREN Medan dalam rangka pengembangan pengetahuan anak anak asuhan dibidang Geometri tentang Garis dan Sudut. Karena pemahaman Garis dan Sudut adalah dasar untuk meningkatkan pemahaman yang lebih mendalam tentang bentuk dan sifat sifat bangun Geometri. Materi yang di paparkan pada pelaksanaan Pengabdian ini bertujuan untuk memperkuat dasar dasar pengetahuan tentang pengaruh Garis dan Sudut terhadap bentuk bangun bangun datar ataupun Ruang. Hal ini berdampak pada pengetahuan dan pemahaman anak anak dalam bidang Geometri semakin bertambah dan menjadi penopang kemampuan kognitif dalam pendidikan formal. Semoga apa yang telah Team PKM perbuat pada kesempatan ini semakin meningkatkan belajar dan pengetahuan anak-anak Panti Asuhan Gratia Children Medan.

Integration of Blockchain for Electronic Contract Proof Systems and Civil Law Review Limbong, Riswan; Tamba, RL. Harmady; Siregar, Kristian
Judge : Jurnal Hukum Vol. 6 No. 02 (2025): Judge : Jurnal Hukum
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/judge.v6i02.1582

The advancement of blockchain technology has opened new possibilities in strengthening the validity and security of electronic contracts. In an era where digital transactions are increasingly prevalent, the need for trustworthy and tamper-proof legal documentation has become critical. Blockchain, with its decentralized, immutable, and time-stamped ledger system, presents a promising solution for enhancing the proof mechanism of electronic contracts. However, in Indonesia, despite the legal recognition of electronic contracts under the Information and Electronic Transactions Law (ITE Law), there remains a gap in regulatory clarity regarding the legal force and admissibility of blockchain-based contracts in civil law proceedings. This study aims to explore the integration of blockchain technology into electronic contract systems and analyze its legal implications based on Indonesian civil law. The research employs a normative juridical approach, supported by technological analysis of blockchain infrastructure and smart contracts. Findings suggest that blockchain can fulfill several legal criteria for evidence, such as authenticity, integrity, and transparency. Nevertheless, the absence of explicit legal frameworks poses challenges to its enforceability, particularly in dispute resolution. The study concludes that while blockchain offers substantial benefits for securing electronic contracts, legal adaptation is necessary to fully recognize its potential within civil law contexts. It recommends the development of regulatory guidelines and legal standards to accommodate emerging technologies like blockchain, ensuring legal certainty, protection for contracting parties, and the integrity of digital agreements in Indonesia’s legal system.

Co-Authors , Sony Bahagia Sinaga Berry Richard Ornos Sinambela Denni M Rajagukguk Hasugian , Paska Marto Hery Sunandar Kennedi Tampubolon Mamed Rofendi Manalu, Mamed Rofendi Mesran, Mesran Monang Juanda Tua Sihombing Muhammad Syahrizal Panjaitan, Muhammad Iqbal Paska Miranda Sitanggang Pristiwanto Pristiwanto Pristiwanto Riduansyah Riduansyah Riswan Limbong Siagian, Edward Robinson Siddik Karo-Karo Tamba, RL. Harmady Tarigan, Pilipus Tiepsi, Tiepsi Yasir Hasan

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