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All Journal Information Technology and Telematics Dinamik Jurnal Ilmiah Dinamika Teknik Proceeding SENDI_U Jurnal Informatika Upgris Journal of Information Technology and Computer Science (JOINTECS) INTECOMS: Journal of Information Technology and Computer Science J-SAKTI (Jurnal Sains Komputer dan Informatika) Jurnal Informasi dan Komputer JURNAL MAHAJANA INFORMASI Jurnal Informatika dan Rekayasa Elektronik Jurnal Informatika dan Rekayasa Perangkat Lunak Journal of Tropical Ethnobiology Dinamika Informatika: Jurnal Ilmiah Teknologi Informasi MEANS (Media Informasi Analisa dan Sistem) Jurnal Program Kemitraan dan Pengabdian Kepada Masyarakat J-SAKTI (Jurnal Sains Komputer dan Informatika) Jurnal Pengabdian Masyarakat Intimas (Jurnal INTIMAS): Inovasi Teknologi Informasi Dan Komputer Untuk Masyarakat Duta Abdimas: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Pada Masyarakat Kesatria : Jurnal Penerapan Sistem Informasi (Komputer dan Manajemen) Fundamentum: Jurnal Pengabdian Multidisiplin International Journal of Information Technology and Business
Widiyanto Tri Handoko
Universitas Stikubank
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Perancangan User Interface Untuk Meningkatkan User Experience Menggunakan Metode Human Centered Design Pada Web E-Commerce CV. Cipta Karya Meubel Jepara Kartiko Haryanto; Widiyanto Tri Handoko
Kesatria : Jurnal Penerapan Sistem Informasi (Komputer dan Manajemen) Vol 5, No 1 (2024): Edisi Januari
Publisher : LPPM STIKOM Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/kesatria.v5i1.338

Abstract

E-commerce is the use of communication networks and computers to conduct business processes. Currently, many independent businesses facilitate sellers and buyers by providing convenience in digital transactions, including businesses in the furniture sales sector. With e-commerce, the target audience spans across different regions and generations, making furniture sales at CV. Cipta Karya Meubel not limited to the local population alone. CV. Cipta Karya Meubel Jepara requires an e-commerce platform with a user interface that is easily understandable by people from various backgrounds to enhance the user experience. To address and identify usability issues specifically, a user interface design process is needed, utilizing the Human-Centered Design method and evaluating usability using the Heuristic Evaluation (HE) method. This evaluation and design process is conducted to improve the comfort of using the e-commerce application. From the research findings, it can be concluded that the Human-Centered Design (HCD) and Heuristic Evaluation methods can simplify the application design process and align it with user needs.
Studi Literasi Tersistematis Implementasi Metode-Metode Pengembangan Sistem Informasi Berbasis Basis Data Terdistribusi Endang Lestariningsih; Rara Sriartati Redjeki; Edy Supriyanto; Hari Murti; Eka Ardhianto; Eko Nur Wahyudi; Widiyanto Tri Handoko
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol 6, No 1 (2024): Maret
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jinrpl.v6i1.9314

Abstract

Information systems cannot be separated from a database as the main database. As time goes by, the amount of data processed by information systems increases significantly. Currently, databases are not only stored in one storage media location, but can also be stored in different locations and locations. This is also supported by advances in network technology, both hardware and supporting software. The distributed database system model provides significant support for processing data stored in different locations. Many information system implementations use the concept of a distributed database system. The aim of this research is to study the development of database system implementation using distributed database system technology. This research uses a systematic literature observation approach. The results obtained are that the concept of a distributed database system is still used today to support information system governance that produces information tailored to user objectives. Systems created using development techniques based on the distributed database concept have advantages in several aspects of development.
SISTEM PENDUKUNG KEPUTUSAN PENGANGKATAN KARYAWAN TRAINING MENJADI KARYAWAN TETAP BERBASIS WEB DENGAN MENGGUNAKAN METODE SAW Sitorus P, Forlediska Amelia; Handoko, Widiyanto Tri
Jurnal informasi dan komputer Vol 11 No 02 (2023): Jurnal Informasi dan Komputer yang terbit pada tahun 2023 pada bulan 10 (Oktobe
Publisher : LPPM Institut Teknologi Bisnis Dan Bahasa Dian Cipta Cendikia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35959/jik.v11i02.431

Abstract

An institution or an office definitely needs personnel or Human Resources (HR). If HR can be well organized, it is hoped that the company can also manage all business processes properly. Every company has criteria for assessing the performance of its employees. Therefore a decision support system was built using the SAW method. By using the SAW method, the best alternative is sought based on the specified criteria. In this study, the SAW method was adopted and can be carried out according to the expected results. Tests in this study used white box and black box testing with the results according to the original plan and can be said to be successful.
Perluasan Pemasaran melalui Literasi Aplikasi Shopee bagi UMKM Paguyuban Lentera Mranggen Demak Supriyanto, Edy; Lestariningsih, Endang; Murti, Hari; Redjeki, Rara Sriartati; Handoko, Widiyanto Tri; Ardhianto, Eka; Soelistijadi, R.; Wismarini, Theresia Dwiati; Wahyudi, Eko Nur; Lusiana, Veronica
Jurnal Pengabdian Pada Masyarakat Vol 9 No 4 (2024): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/jppm.v9i4.989

Abstract

Pelaku usaha UMKM adalah kelompok penting yang menggerakkan perekonomian mikro dimasyarakat. Paguyuban UMKM Lentera yang terletak di Mranggen Demak, sebelah timur pinggir kota Semarang, juga perlu mendapatkan perhatian untuk meningkatkan kemampuan pengelolaan dan pendapatan. Hal ini dilihat dari maraknya pembukaan minimarket yang tumbuh dibanyak area penduduk. Permasalahan yang dihadapai saat ini dalah area pemasaran yang terbatas dan jumlah pendapatan yang saat ini stagnan dan cenderung menurun. Solusi yang ditawarkan atas permasalahan adalah adanya ekspansi pasar melalui pembukaan toko online. Pelaksanaan kegiatan ini menggunakan teknik Participatoty Action Research (PAR) dengan bentuk seminar, pelatihan, dan pendampingan. Hasil yang diperoleh adalah meningkatnya pemahaman anggota UMKM Lentera terhadap manfaat, resiko penggunaan toko online, serta keberhasilan para anggota UMKM Lentera untuk membuka toko online sebesar 64,28% dari jumlah peserta keseluruhuan. Toko online yang dimiliki perserta lengkap dengan foto produk dan harga yang siap bersaing. Sebagai bentuk refleksi perlua danya pendampingan dan kegiatan secara berlanjut untuk meningkatkan pemasaran dari berbagai aspek. MSME entrepreneurs are an important group that drives the micro-economy into society. The Lentera MSME Association, which is located on Mranggen Demak, eastern of the edge of Semarang city, also needs attention to improve management capabilities and income. This can be seen from the widespread opening of minimarkets which are growing in many populated areas. The problems currently faced are the limited marketing area and the amount of income which is currently stagnant and tends to decrease. The solution offered to the problem is market expansion through opening an online shop. The implementation of this activity uses Participatory Action Research (PAR) techniques in the form of seminars, training and mentoring. The results obtained were an increase in the understanding of MSME Lentera members regarding the benefits, risks of using online shops, as well as the success of MSME Lentera members in opening online shops amounting to 64.28% of the total number of participants. The online shop owned by participants is complete with product photos and prices that are ready to compete. As a form of reflection on the need for ongoing assistance and activities to improve marketing in various aspects.
Klasifikasi Opini Pengguna Media Sosial Twitter Terhadap JNT Di Indonesia dengan Algoritma Decision Tree Handoko, Widiyanto Tri; Supriyanto, Edy; Purwadi, Dimas Indra; Budiarso, Zuly; Listiyono, Hersatoto
J-SAKTI (Jurnal Sains Komputer dan Informatika) Vol 6, No 2 (2022): EDISI SEPTEMBER
Publisher : STIKOM Tunas Bangsa Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/j-sakti.v6i2.490

Abstract

JNT Ekspress is one of the many freight forwarding companies that exist today, where JNT has very wide access so it is very easy to use for the public in shipping goods. With the current network, JNT is able to deliver goods to all provinces in Indonesia. With the large number of users, of course there will be a lot of user opinions that appear, both positive and negative opinions. In order to be able to categorize multiple opinions, a machine learning program is needed that can simplify the process of grouping the opinion. There are many algorithms that can be used to classify opinions, one of them is Decision Tree. Prior to grouping or classification, Tweet data that has been collected needs to be preprocessed first so that the tweet data can be recognized by the system. Based on this research, the Decision Tree algorithm gets an accuracy of 94.12% with a comparison ratio of training data and testing data of 90:10
Klasifikasi Opini Pengguna Media Sosial Twitter Terhadap JNT Di Indonesia dengan Algoritma Decision Tree Handoko, Widiyanto Tri; Supriyanto, Edy; Purwadi, Dimas Indra; Budiarso, Zuly; Listiyono, Hersatoto
J-SAKTI (Jurnal Sains Komputer dan Informatika) Vol 6, No 2 (2022): EDISI SEPTEMBER
Publisher : STIKOM Tunas Bangsa Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/j-sakti.v6i2.490

Abstract

JNT Ekspress is one of the many freight forwarding companies that exist today, where JNT has very wide access so it is very easy to use for the public in shipping goods. With the current network, JNT is able to deliver goods to all provinces in Indonesia. With the large number of users, of course there will be a lot of user opinions that appear, both positive and negative opinions. In order to be able to categorize multiple opinions, a machine learning program is needed that can simplify the process of grouping the opinion. There are many algorithms that can be used to classify opinions, one of them is Decision Tree. Prior to grouping or classification, Tweet data that has been collected needs to be preprocessed first so that the tweet data can be recognized by the system. Based on this research, the Decision Tree algorithm gets an accuracy of 94.12% with a comparison ratio of training data and testing data of 90:10
Peningkatan Ketahanan Algoritma Vigenere menggunakan Generator kunci Tiga Lapis Supriyanto, Edy; Handoko, Widiyanto Tri; Wibowo*, Sutrasno Andre; Ardhianto, Eka
Jurnal Mahajana Informasi Vol 7 No 1 (2022): JURNAL MAHAJANA INFORMASI
Publisher : Universitas Sari Mutiara Indonesia Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/jurnalmi.v7i1.2894

Abstract

Vigenere merupakan algoritma enkripsi berbasis teks yang sederhana. Dalam kriptografi, vigenere telah mengalami banyak modifikasi untuk memperkuat kerahasiaan informasi dari pihak yang tidak berhak. Faktor penting yang mempengaruhi ialah penggunaan kunci. Penelitian ini bertujuan untuk memperkuat ketahanan informasi yang diamankan vigenere melalui proses penerbitan kunci. Eksperimen ini mengusulkan penggunaan Teknik penerbitan kunci secara berlapis. Fungsi random, penggunaan bilangan euler dan metode penerbitan kunci Blum Blum Shub dieksperimenkan pada model enkripsi “extended Vigenere”. Sebagai metrik performasi digunakan perhitungan nilai entropi. Eksperimen ini mendapatkan hasil berupa penggunaan penerbitan kunci secara berlapis pada model enkripsi “extended Vigenere” meningkatkan nilai entropi informasi rahasia yang berimbas pada peningkatan ketahanan informasi dari serangan kriptanalis.
New Design of Encryption with Covertext and Reordering Eka Ardhianto; Widiyanto Tri Handoko; Hari Murti; Rara Sri Artati Redjeki
International Journal of Information Technology and Business Vol. 5 No. 2 (2023): April : International Journal of Information Technology and Business
Publisher : Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/ijiteb.522023.01-05

Abstract

Documents for some entities are confidential and important, so security is required. Encryption with Covertext and Reordering (ECR) is a text-based document security model. ECR uses a random key to generate the ciphertext. The ECR’s random key is selected using the human-generated method. This research aims to increase the level of document security based on the ECR mechanism. This paper proposes a new method by using a random key in a permutated table. The random key is generated automatically by a function. The entropy is used as a measurement of the security level of the encrypted documents. The experimental shows that the permutated table inside the ECR provides better entropy values. It implies a better security level. The use of permutated tables also makes it easier to use ECR to secure documents.
Sistem Penjualan Petshop Menggunakan Algoritma Machine Learning Pada Galaxy Petshop Semarang Cahyani, Bella Garin Dwi; Handoko, Widiyanto Tri
MEANS (Media Informasi Analisa dan Sistem) Volume 8 Nomor 2
Publisher : LPPM UNIKA Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/means.v8i2.2766

Abstract

A recommendation system is a system that can provide recommendations on a particular object that can be used to assist system users in making a decision. This study iams to implement a recommendation system using the collaborative filtering method in e-commerce for the pet shop selling system. With e-commerce, customers can make purchases on-line without having to come to the costs. With the recommendation system provided, customers will get recommendations for the product to be purchased as a consideration in determining product choices. The collaborative filtering method carries out the process of filtering or evaluating objects based on oter people’s opinions, by providing information to consumers, based on similar characteristics
Optimalisasi Pemilihan Lapangan Badminton: Integrasi Metode SAW dan AHP dalam Sistem Pendukung Keputusan Lestariningsih, Endang; Nadila, Latifia; Handoko, Widiyanto Tri; Amin , Imam Husni Al
MEANS (Media Informasi Analisa dan Sistem) Volume 10 Nomor 1
Publisher : LPPM UNIKA Santo Thomas Medan

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

Abstract

Badminton is one of the most popular sports in the world, with Indonesia having achieved great success in international competitions. The high level of public interest in this sport requires the availability of adequate court facilities. However, the comfort of badminton court facilities still varies, so a decision support system is needed to help select the optimal court. This study develops a decision support system based on the integration of the Simple Additive Weighting (SAW) and Analytical Hierarchy Process (AHP) methods. SAW is used for criterion weighting, while AHP is applied in the ranking stage of alternatives. This combination of methods was chosen due to its ability to process qualitative data from player and athlete evaluations, as well as quantitative court data, while addressing complex issues through hierarchy-based prioritisation. The results of the study indicate that the system is capable of consistently weighting criteria (CR < 0.1). This study also produced a ranking of badminton courts in North Brebes based on seven criteria (price, floor type, lighting, bathrooms, scoreboards, cooperatives, and parking lots) and identified priority facilities. Court 33 in Brebes was selected as the best alternative with a preference value of 0.7485.
Co-Authors Aldri Frinaldi Amin , Imam Husni Al Antoni Yohanes Antono Adhi Bambang T Sudiono Cahyani, Bella Garin Dwi Catur Septiawan, Catur Dedi, Widiarto Dwi Agus Diartono DWI SUSILO, ANDI Edy Supriyanto Edy Supriyanto Edy Supriyanto Eka Ardhianto Eko Nur Wahyudi Endang Lestariningsih Felix Andreas Sutanto Firman Ardiansyah Ekoanindiyo Fitika Andraini Hari Murti Hari Murti Hersatoto Listiyono Kartiko Haryanto Mardi Siswo Utomo Muhammad Akbar Anugrah Illahi Muhammad Iqbal Zakasih Muhammad, Adianzah Murti, Hari Nadila, Latifia Purwadi, Dimas Indra R. Soelistijadi Rara Sri Artati Redjeki Rezky Febriani, Rezky Riko Dwi Jaya S.Pd. M Kes I Ketut Sudiana . SATRIA PRAKOSO, DICKY SEFI RENANDO, FARERA Sitorus P, Forlediska Amelia Sutrasno Andre Wibowo* Theresia Dwiati Wismarini Veronica Lusiana Vidya Indanvati Wibowo*, Sutrasno Andre Wismarini, Th Dwiati Y. Purwanto Yohanes Suhari Zuly Budiarso