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DECISION SUPPORT SYSTEM DETERMINING RECIPIENTS OF THE PEOPLE'S HOUSING ASSISTANCE PROGRAM USING THE ELIMINATION AND CHOICE TRANSLATION REALITY METHOD (ELECTRE) Lipandi Herdian Mulyana; Mochzen Gito Resmi; Imam Ma’ruf Nugroho
RISTEC : Research in Information Systems and Technology Vol 3, No 2 (2022): Research in Information Systems and Technology
Publisher : Institut Pendidikan Indonesia

In this era, the need for technology is indispensable in various fields of need, inseparable from the economic field in the field of community welfare, one of which is work programs to facilitate achieving goals, one of which is the work carried out by the Ministry of PUPR, namely the program for flats, special houses, and stimulant assistance for self-help housing.based on pre-determined criteria. Electre is one of the methods used to rank and determine the best alternative. The basic concept of the electre method is to deal with outranking relationships by using pairwise comparisons between alternatives under each criterion separately. Which produces a computerized system that can automatically determine people who are eligible to receive public housing assistance, based on the criteria values entered. This decision support system is designed using the PHP programming language

PERANCANGAN UI/UX APLIKASI INSTRUMENT PREVENTIVE MAINTENANCE BERBASIS MOBILE DENGAN METODE USER CENTERED DESIGN Deden Hidayat; Imam Ma’ruf Nugroho; Yusuf Muhyidin
INFOKOM (Informatika & Komputer) Vol 11 No 2 (2023): JURNAL INFOKOM DESEMBER 2023
Publisher : POLITEKNIK PIKSI GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56689/infokom.v11i2.1070

Mobile aplikasi banyak dikembangkan di industri-industri saat ini karna kemudahan dan kenyamanan pengguna dalam penggunaanya.Salah satu penunjang dalam pembuatan aplikasi mobile adalah user interface dan user Experience. user interface merupakan mekanisme komunikasi antara pengguna (user) dengan sistem pada sebuah program, baik itu aplikasi website, mobile, ataupun software. PT XYZ menyadari akan pentingnya user interface dan user Experience dalam langkah awal pembuatan aplikasi dalam rangka memenuhi kebutuhan pengguna,user Centered Design (UCD) adalah metode dalam suatu perancangan desain yang berfokus pada kebutuhan user metode UCD digunakan dalam perancangan user interface dan user experience pada aplikasi Instrument mobile pevetive mintenance dengan metode pengujian Single Ease Questionnaire (SEQ) sebagai bahan evaluasi dengan data Score Responden yang di hasilkan 3% tidak sulit, 29% mudah dan 68% sangat mudah digunakan. Katakunci : Perancangan, user interface, user experience, mobile, Preventive.

Comparative Analysis of SHA-256 and BLAKE2 Algorithms: A Case Study of Processing Time Efficiency, CPU Usage, and RAM in Data Integrity Sistems on Windows and Linux Yusuf Muhyidin; Imam Ma’ruf Nugroho; Muhammad Agus Sunandar
Jurnal Teknologika Vol 16 No 1 (2026): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v16i1.675

Data security is a fundamental aspect of modern information sistems, particularly in ensuring the integrity of transmitted and stored data. Cryptographic hash functions serve as a key technology to meet this need, with SHA-256 as the widely adopted industry standard and BLAKE2 as an alternative designed to offer higher speed on modern processor architectures. However, most previous studies compared both algorithms on a single platform and were limited to processing time parameters, without considering the influence of the operating sistem or overall resource consumption. This study aims to conduct a comprehensive comparative analysis of SHA-256 and BLAKE2 performance on two operating sistem environments, namely Windows 11 and Linux, by measuring four main parameters: execution time (ms), throughput (MB/s), CPU usage (%), and RAM consumption (MB). Testing was conducted using Python 3.13 with the hashlib, timeit, psutil, and tracemalloc libraries, on AMD Ryzen 5 5500 hardware with 16 GB DDR4 RAM. Test data was generated randomly via os.urandom() in four size variations — 1 MB, 10 MB, 50 MB, and 100 MB — each repeated 100 iterations to obtain stable average values. The results show that no algorithm is universally superior under all conditions. On Linux, BLAKE2 is faster for data sizes of 1–50 MB, while SHA-256 outperforms on 100 MB data. Conversely, on Windows, SHA-256 is faster for 1–10 MB data, while BLAKE2 significantly outperforms on 100 MB data with an execution time of 5.10 ms compared to SHA-256's 18.82 ms. The most significant finding is that Windows consumes an average CPU of 2.84–3.12%, which is three times lower than Linux at 9.68–9.84%, indicating a fundamental difference in cryptographic resource management between the two operating sistems

Comparative Analysis of SHA-256 and BLAKE2 Algorithms: A Case Study of Processing Time Efficiency, CPU Usage, and RAM in Data Integrity Sistems on Windows and Linux Yusuf Muhyidin; Imam Ma’ruf Nugroho; Muhammad Agus Sunandar
Jurnal Teknologika Vol. 16 No. 1 (2026): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v16i1.675

Data security is a fundamental aspect of modern information sistems, particularly in ensuring the integrity of transmitted and stored data. Cryptographic hash functions serve as a key technology to meet this need, with SHA-256 as the widely adopted industry standard and BLAKE2 as an alternative designed to offer higher speed on modern processor architectures. However, most previous studies compared both algorithms on a single platform and were limited to processing time parameters, without considering the influence of the operating sistem or overall resource consumption. This study aims to conduct a comprehensive comparative analysis of SHA-256 and BLAKE2 performance on two operating sistem environments, namely Windows 11 and Linux, by measuring four main parameters: execution time (ms), throughput (MB/s), CPU usage (%), and RAM consumption (MB). Testing was conducted using Python 3.13 with the hashlib, timeit, psutil, and tracemalloc libraries, on AMD Ryzen 5 5500 hardware with 16 GB DDR4 RAM. Test data was generated randomly via os.urandom() in four size variations — 1 MB, 10 MB, 50 MB, and 100 MB — each repeated 100 iterations to obtain stable average values. The results show that no algorithm is universally superior under all conditions. On Linux, BLAKE2 is faster for data sizes of 1–50 MB, while SHA-256 outperforms on 100 MB data. Conversely, on Windows, SHA-256 is faster for 1–10 MB data, while BLAKE2 significantly outperforms on 100 MB data with an execution time of 5.10 ms compared to SHA-256's 18.82 ms. The most significant finding is that Windows consumes an average CPU of 2.84–3.12%, which is three times lower than Linux at 9.68–9.84%, indicating a fundamental difference in cryptographic resource management between the two operating sistems

BATIK MOTIF CLASSIFICATION USING CNN WITH RESNET-50 ARCHITECTURE Muhammad Ridwan Wibisono; Imam Ma’ruf Nugroho; Meriska Defriani
RISTEC: Research in Information Systems and Technology Vol. 6 No. 1 (2025): RISTEC: Research in Information Systems and Technology
Publisher : Institut Pendidikan Indonesia Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/ristec.v6i1.2827

Batik merupakan kerajinan tradisional Indonesia yang memiliki nilai seni tinggi dan telah diakui sebagai warisan budaya dunia oleh UNESCO pada 2 Oktober 2009. Namun, pengetahuan tentang identifikasi motif batik umumnya hanya dimiliki oleh mereka yang memiliki keahlian khusus, seperti pengrajin batik. Penelitian ini bertujuan untuk mengembangkan aplikasi berbasis Streamlit yang mampu mengklasifikasikan motif batik menggunakan metode Convolutional Neural Network (CNN) dengan arsitektur ResNet-50 untuk dapat menjadi solusi dalam mengenalkan batik secara lebih luas kepada masyarakat, baik sebagai media edukasi maupun sebagai alat bantu bagi industri kreatif. Penelitian ini menggunakan metodologi CRISP-DM (Cross-Industry Standard Process for Data Mining) yang mencakup tahapan Business Understanding, Data Understanding, Data Preparation, Modeling, Evaluation, dan Deployment. Model dilatih selama 21 epoch, dengan hasil akurasi pelatihan sebesar 99,31%, akurasi validasi 94,37%, loss pelatihan 2,4%, dan loss validasi 22,25%. Dalam evaluasi menggunakan 140 sampel citra batik, model mencapai akurasi 89,285%. Hasil ini menunjukkan bahwa aplikasi yang dikembangkan berhasil dalam mengklasifikasikan motif batik menggunakan CNN.

IMPLEMENTATION OF HAVERSINE FORMULA IN AN ANDROID-BASED GEOGRAPHIC INFORMATION SYSTEM BPJS HEALTH FACILITIES IN PURWAKARTA Irgiyansyah; Imam Ma’ruf Nugroho; Meriska Defriani
RISTEC: Research in Information Systems and Technology Vol. 6 No. 1 (2025): RISTEC: Research in Information Systems and Technology
Publisher : Institut Pendidikan Indonesia Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/ristec.v6i1.3023

This study designs and develops an Application Android-based Geographic Information System (GIS) to assist residents of Purwakarta Regency in locating the nearest BPJS-affiliated healthcare facilities, addressing the limitations of distance information and mapping on the Health Office’s website. To compute distances, the application utilizes the Haversine Formula based on the user’s coordinates. It is developed using Flutter for the Android application and Laravel for the web-based admin system, following the Extreme Programming (XP) methodology. Blackbox Testing is used to ensure system functionality. As a result, the application can display a list and geographic locations of healthcare facilities along with the distance from the user. The application is expected to provide easier access to healthcare information and enhance the quality of health services in Purwakarta Regency.

E-COMMERCE WEBSITE DESIGN USING EXTREME PROGRAMMING METHOD (Case Study: UMKM Bolu Ara) Rina Juniar; Imam Ma’ruf Nugroho; Yusuf Muhyidin
RISTEC: Research in Information Systems and Technology Vol. 6 No. 1 (2025): RISTEC: Research in Information Systems and Technology
Publisher : Institut Pendidikan Indonesia Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/ristec.v6i1.3037

UMKM Bolu Ara is a micro business engaged in the production of cakes and sponges, which still uses manual methods in recording and managing orders via WhatsApp. This system causes various obstacles such as delays in payment verification, order recording errors, and difficulties in data management. To overcome these problems, the design and development of e-commerce websites using the Extreme Programming (XP) method was carried out. The XP method was chosen because it is iterative and flexible, with stages of planning, design, coding, and testing. The tools used include the CodeIgniter 3 framework, PHP programming language, MySQL database, and Visual Studio Code editor, with XAMPP support as a local server. Testing is done using the Black Box Testing method to ensure system functionality in accordance with user needs. The development results show that the e-commerce website built is able to make the process of recording and managing orders more structured, and provide convenience for users in making transactions independently. This system also supports managers in recording data and reports better.

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