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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.
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Articles 1,829 Documents
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Decision Support System for Determining the Best Wood For the Production Cabinet Using Bayes Method: Decision Support System for Determining the Best Wood For the Production Cabinet Using Bayes Method Roimasro Sibagariang; Fristi Riandari
Jurnal Mantik Vol. 3 No. 3 (2019): November: Manajemen, Teknologi Informatika dan Komunikasi (ManTIK)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Wood in the furniture company is a material that is needed in the manufacture of a product, for example in the manufacture of cabinets or other furniture products. Furniture companies at this time often have problems in determining wood for good quality and lack of knowledge in good wood specifications to be used as materials for making wood crafts, furniture companies only think of orders and do not consider the results of craftsmanship produced from raw materials is wood where to determine a production in order to get quality that is of a quality wood drought must be considered.
Decision Support Systems Assessment of the best village in Perbaungan sub-district with the Simple Additive Weighting (SAW) Method: Decision Support Systems Assessment of the best village in Perbaungan sub-district with the Simple Additive Weighting (SAW) Method Sri Devi; Hengki Tamando Sihotang
Jurnal Mantik Vol. 3 No. 3 (2019): November: Manajemen, Teknologi Informatika dan Komunikasi (ManTIK)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Information technology is a technology used to process data, including processing, obtaining, compiling storing, manipulating to produce quality information, which is relevant information that is accurate and timely in decision making. In the village assessment is an effort to encourage community efforts based on their own determination and strength as well as researching and assessing the success of community efforts in rural development such as improving the quality of economic, political, social, and cultural life as well as security and order. This research examines how to design an application and build a decision support system to facilitate the process of assessing the best villages. Using the Simple Additive Weighting (SAW) method, assess the best village to be more targeted. The SAW method certainly uses a more accurate assessment because it is based on the value of criteria and weight of predetermined preferences. This research produces a system that can display recommendations for the best village assessment with the results of the criteria that have been determined by the needs of the system.
Decision Support System Feasibility Lending At KSU Mitra Karya Cooperative Customer Unit XXVIII with Analytical Hierarchy Process Method: Decision Support System Feasibility Lending At KSU Mitra Karya Cooperative Customer Unit XXVIII with Analytical Hierarchy Process Method Temasokhi Ndruru; Fristi Riandari
Jurnal Mantik Vol. 3 No. 3 (2019): November: Manajemen, Teknologi Informatika dan Komunikasi (ManTIK)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Decision Support System (DSS) is a system that can assist a person in making accurate decisions and targeted. Many problems can be solved by using CMS, one of which is determining the feasibility of a credit recipient customers. There are several methods that can be used in building a CMS one of them is the Analytical Hierarchy Process (AHP). AHP is yan method most widely used in solving problems that are multiple criteria, such as the eligibility determination SPK customer credit recipients. This study using AHP in determining credit worthiness recipient customers on Business Multipurpose Cooperative Unit of Work Partners XXVIII. In determining the credit worthiness of customers receiver, there are several criteria on which to base decisions, among others Dwelling, Income, dependents, and The work. The end result of this research is the result of global priority customer criteria, sorted from highest to lowest, so the cooperative can easily make decisions by looking at the results.
Data Warehouse Implementation Techniques In Data Processing (Case Study Data Sales at PT Spirit Sejahtera Bersama): Data Warehouse Implementation Techniques In Data Processing (Case Study Data Sales at PT Spirit Sejahtera Bersama) Made Hanindia Prami Swari; Fawwaz Ali Akbar; Martoni Martoni
Jurnal Mantik Vol. 3 No. 3 (2019): November: Manajemen, Teknologi Informatika dan Komunikasi (ManTIK)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Data Warehouse is a technique that can provide a facility for the storage and management of historical data from various internal and external sources so that it can be used in making strategic decisions for the company. A characteristic that distinguishes ordinary data warehouse database was largely on the data source that can not necessarily uniform and comes from one source as happened in PT Sejahtera Bersama spirit. The company is engaged in the sale of medical equipment, up to now has more than 70 showrooms and is divided in 12 regions, of which the sales information system used by the company in each region has a separate database in excel format, this is what makes firms difficulty in the process analyzing the sales data of the company. This research aims to design and build a data warehouse system to support marketing performance assessment and achievement of sales at PT Sejahtera Bersama spirit. Data modeling methods used in the design of data warehouse in this study is the dimensional modeling star schemas. Results from this study is a web-based dashboard application that will display sales data from the data warehouse is equipped with charts and reports, and the results of tests with the method of black box testing can be seen that the system has been going well as expected. Data modeling methods used in the design of data warehouse in this study is the dimensional modeling star schemas. Results from this study is a web-based dashboard application that will display sales data from the data warehouse is equipped with charts and reports, and the results of tests with the method of black box testing can be seen that the system has been going well as expected. Data modeling methods used in the design of data warehouse in this study is the dimensional modeling star schemas. Results from this study is a web-based dashboard application that will display sales data from the data warehouse is equipped with charts and reports, and the results of tests with the method of black box testing can be seen that the system has been going well as expected.
Ecommerce Design Based Multi Vendor Case Study PT. Mutiara Katalog Indonesia: Ecommerce Design Based Multi Vendor Case Study PT. Mutiara Katalog Indonesia Prasojo Herdy Sutanto
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

In the beginning, PT. Mutiara Katalog Indonesia. In selling goods is still the traditional way. To achieve sales targets to consumers is still very difficult, recording sales data is also still using manual methods that use paper and books. Traditional data collection errors often occur so that this results in losses for the company. At present Ecommerce as a medium that can provide convenience for traders, in addition to wider product distribution and to achieve a more targeted sales approach. For Ecommerce transactions can be done with electronic media in an automatic way. With a descriptive method that applies data retrieval by interviewing also seeing firsthand the conditions in the field and study of literature, a problem is found to develop and find possible solutions, namely, how to improve operational performance and expand market share for this store. Application of eCommerce technology as a more effective and efficient way. This can also save data processing time and tend to be more accurate and faster in making reports to the owner. The preparation of the application includes the development stages which include requirements analysis, making data flow diagrams with UML Modeling as well as WEB-based programming languages ??namely PHP, Ajax, Jquery, JSon and MySqli. For testing the system using the Black Box and Alpha methods.
ANALISIS PERFORMA ALGORITMA BLOWFISH DAN TEA DALAM PENGAMANAN DATA: ANALISIS PERFORMA ALGORITMA BLOWFISH DAN TEA DALAM PENGAMANAN DATA Yennimar Yennimar; Annisa Fadhlila; Pratiwi Pratiwi; Anita Yose Fanny Manurung; Risda Amelia Amanta Br Ginting
Jurnal Mantik Vol. 3 No. 2 (2019): Augustus: Manajemen, Teknologi Informatiak dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Keamanan maupun kerahasiaan data menjadi hal penting untuk diperhatikan dikarenakan keamanan data berhubungan dengan pencegahan dari pencurian data oleh pihak yang tidak bertanggung jawab. Teknik yang dapat digunakan untuk mengamankan data yaitu dengan kriptografi. Beberapa metode kriptografi memiliki performa yang baik dan buruk tergantung dengan tipe kuncinya. Maka dari itu, tujuan dari penelitian ini adalah mengukur tingkat kecepatan dari algoritm Blowfish dan algoritma TEA, dengan tipe data text dan gambar. Hasil dari penelitian ini Algoritma Blowfish dalam proses enkripsi dan dekripsi data lebih aman dan lebih unggul dari algoritma TEA. Rata-rata kecepatan enkripsi algoritma Blowfish untuk file gambar 650ms dan deskripsi 637ms sedangkan TEA waktu kecepatan enkripsi 685ms dan deskripsi 699ms. Pada file docx algoritma Blowfish memiliki kecepatan proses enkripsi 31ms dan deskripsi 94ms dan Algoritma TEA waktu kecepatan enkripsi 157ms dan deskripsi 141ms.
ANALISIS GRAY LEVEL CO-OCCURRENCE MATRIX (GLCM) DALAM MENGENALI CITRA EKSPRESI WAJAH: ANALISIS GRAY LEVEL CO-OCCURRENCE MATRIX (GLCM) DALAM MENGENALI CITRA EKSPRESI WAJAH Reyhan Achmad Rizal; Suardin Gulo; Octavriana Della C. Sihombing; Ardi Bernandustahi Miduk Napitupulu; Amsal Yusuf Gultom; Taripar Jonibet Siagian
Jurnal Mantik Vol. 3 No. 2 (2019): Augustus: Manajemen, Teknologi Informatiak dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Ekspresi wajah merupakan cara pengungkapan atau proses menyatakan maksud tertentu seperti sedih, bahagia, terkejut, takut, marah dan bad mood. Perubahan fitur wajah pada bibir, mata, pipi, membesarkan alis dan mulut terbuka dapat dijadikan variabel dalam menentukan maksud dari ekpresi wajah. Dataset yang digunakan dalam penelitian ini yaitu citra wajah dengan ekspresi : sedih, bahagia, terkejut, takut, marah, netral dan bad mood dengan ukuran 256x256. File citra yang digunakan untuk pelatihan maupun pengujian diambil dari situs http://www.kasrl.org/jaffeimages.zip dengan total keseluruhan sampling 213 citra ekspresi wajah. Klasifikasi ekspresi wajah menggunakan metode gray level co-occurrence matrix (GLCM). Hasil Klasifikasi pada ekspresi wajah netral GLCM mampu mengklasifikasi dengan rata-rata tingkat akurasi 33%, ekspresi marah 48%, ekspresi bahagia 73%, ekspresi bad mood 44%, ekspresi takut 15%, ekspresi sedih 54%, dan ekspresi terkejut 68%.
ANALISIS DISCRETE HARTLEY TRANSFORM (DHT) DALAM MENGENALI SUARA SANDI MORSE: ANALISIS DISCRETE HARTLEY TRANSFORM (DHT) DALAM MENGENALI SUARA SANDI MORSE Reyhan Achmad Rizal; Jhoni Efendi Silalahi; Yohannes Oneju Louis Silitonga; Daniel Rudiyan Purba; Resta Meidina Rinika; Erta Rumina Hutasoit
Jurnal Mantik Vol. 3 No. 2 (2019): Augustus: Manajemen, Teknologi Informatiak dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Suara adalah bentuk dasar dari metode komunikasi yang efisien bagi manusia untuk berinteraksi satu sama lain. Datasheet yang digunakan dalam penelitian ini terdiri dari sekumpulan file audio suara sandi morse afabet A-Z yang diperoleh dari alat bantu peluit dan direkaman dengan bantuan aplikasi Adobe audition 1.5. File audio yang digunakan yaitu file yang berekstensi .WAV . Discrete hartley transform (DHT) digunakan sebagai transformasi untuk mengolah sample suara yang akan diklasifikasi. Discrete hartley transform (DHT) dalam mentransormasikan sinyal suara sandi morse hanya mampu mengklasifikasikan dengan rata-rata 62% true detection dan 38% false detection.
Determinants of Product Purchasing Decisions (Case Study at PT Federal International Finance Branch of Cianjur, West Java): Determinants of Product Purchasing Decisions (Case Study at PT Federal International Finance Branch of Cianjur, West Java) Hani Fitria Rahmani; Nurus Safa'atillah
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

This study has the objective to determine how much influence the determinants of the product The purchase decision by Federal Internastional Finance Branch of Cianjur. Known determinants are advertising and brand image. This study used survey method. By spreading the enclosed questionnaire at 74 respondents as consumers of PT Federal International Finance. The research proves there is a direct or indirect effect on advertising on purchasing decisions, and there is a direct or indirect effect on brand image to the purchasing decision. Results further said there are significant research on advertising and brand image together against keutusan the purchase of 92.8%.
Effect of Information Systems Management and Competencies To Performance Employees Part In Dyeing: Effect of Information Systems Management and Competencies To Performance Employees Part In Dyeing Wala Erpurini
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

This research was conducted in part Dyeing for their information systems are not used continuously, and not applying selection of employees in accordance with their respective competences. Resulting in a decrease employee performance such as a sense of responsibility for work that is not good. The purpose of this study was to determine the effect of management information systems, competency and performance in the dyeing department employees. The method used is descriptive method and associative, the method of research that seeks to said the settlement problem is happening now by considering past. The analysis showed that partially Management Information System significantly influence employee performance, both directly and indirectly. Competence significant effect on employee performance. Then based on the results of the path analysis, can be obtained that has the biggest contribution to performance is variable competence.

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