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All Journal Seminar Nasional Teknologi Informasi Komunikasi dan Administrasi [SEMINASTIKA] JISA (Jurnal Informatika dan Sains) International Journal of Advances in Data and Information Systems Journal of Computer Networks, Architecture and High Performance Computing Jurnal Sains Indonesia Prosiding Seminar Nasional Unimus
Khalis Sofi
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Humanities Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Nursing Public Health Social Sciences Other

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Implementasi Cost Control System Berbasis Website pada Departemen PPIC PT XYZ Menggunakan Analisis SWOT Khalis Sofi; Aswan Supriyadi Sunge; RR Wening Ken Widodasih; Sasmitoh Rahmad Riady
Jurnal Sains Indonesia Vol 1 No 2 (2020): Volume 1, Nomor 2, 2020 (Juli)
Publisher : PUSAT SAINS INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59897/jsi.v1i2.12

Abstract

Cost Control merupakan komponen penting penunjang berjalannya operasional perusahaan. Pada PT XYZ pekerjaan Cost Control dikendalikan oleh departemen PPIC (Production Planning and Inventory Control). Permasalahan yang dihadapi dalam menjalankan pekerjaan ini adalah kurang terkontrolnya dokumen-dokumen Purchase Requirement yang berupa lembaran kertas NCR (No Carbon Required) sehingga berakibat terhadap kurang teraturnya pembuatan Purchase Order yang dilakukan oleh departemen Purchasing. Hal-hal tersebut berimbas kepada budget yang tersedia, akibatnya PPIC sering menemukan kasus over budget. Maka dari itu, dibutuhkan sistem Cost Control untuk memonitoring aktivitas-aktivitas tersebut dan membantu untuk pengambilan keputusan bagi manajamen terkait budgeting. Sebelum dijalankannya sistem, maka diperlukan sebuah analisis mengenai kelemahan, kelebihan, peluang, dan ancaman yang terdapat dalam analisis SWOT. Sehingga sistem Cost Control mampu mengendalikan biaya untuk pemakaian budget berikutnya.
PERBANDINGAN ALGORITMA LINEAR REGRESSION, LSTM, DAN GRU DALAM MEMPREDIKSI HARGA SAHAM DENGAN MODEL TIME SERIES Khalis Sofi; Aswan Supriyadi Sunge; Sasmitoh Rahmad Riady; Antika Zahrotul Kamalia
PROSIDING SEMINASTIKA Vol 3 No 1 (2021): 3rd SEMINASTIKA 2021
Publisher : Universitas Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47002/seminastika.v3i1.275

Abstract

Penelitian ini bertujuan untuk memprediksi harga saham dengan membandingkan algoritma Linear Regression, Long Short-Term Memory (LSTM), dan Gated Recurrent Unit (GRU) dengan dataset publik kemudian menentukan performa terbaik dari ketiga algoritma tersebut. Dataset yang diuji bersumber dari Indonesia Stock Exchange (IDX), yaitu dataset harga saham KEJU berbentuk time series dari tanggal 15 November 2019 sampai dengan 08 Juni 2021. Parameter yang digunakan untuk pengukuran perbandingan adalah RMSE (Root Mean Square Error), MSE (Mean Square Error), dan MAE (Mean Absolute Error). Setelah dilakukan proses training dan testing, dihasilkan sebuah analisis bahwa dari hasil perbandingan algoritma yang digunakan, algoritma Gated Recurrent Unit (GRU) memiliki performance paling baik dibandingkan Linear Regression dan Long-Short Term Memory (LSTM) dalam hal memprediksi harga saham, dibuktikan dengan nilai RMSE, MSE, dan MAE dari uji coba GRU paling rendah, yaitu nilai RMSE 0.034, MSE 0.001, dan nilai MAE 0.024.
Water Quality Monitoring System with Parameter of pH, Temperature, Turbidity, and Salinity Based on Internet of Things Yazi Adityas; Muchromi Ahmad; Moh Khamim; Khalis Sofi; Sasmitoh Rahmad Riady
JISA(Jurnal Informatika dan Sains) Vol 4, No 2 (2021): JISA(Jurnal Informatika dan Sains)
Publisher : Universitas Trilogi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31326/jisa.v4i2.965

Abstract

This research aims to monitor the quality of water used for aquariums. The physical parameters used are water pH, water temperature, water turbidity, and water salinity. Using a pH sensor, temperature sensor, turbidity sensor, and salinity conductivity sensor with Arduino as the controller. The prototype method used in this research, starting from the formulation, research, building stages to testing and evaluating the results of the research. The working process of the system is when the system is activated, the sensors will detect and capture the amount of value contained in the water, then the data from the sensor is sent to a database in the cloud using an ethernet shield that is connected to the media router as a liaison for the internet network then displayed on the website dashboard in the form of graphs and monitoring record tables in real time. The sensors function to detect water quality, where quality standards have been set in this system, namely temperature standards of 27-30°C, pH standards of 7.0-8.0, turbidity standards of 2.5-5 ntu, and salinity of 20-28 ppt. If the sensor detects non-compliance with water quality standards, the buzzer in this system will sound. From the results of system testing, sensors can detect water quality in real time within 5-10 seconds. Based on the research results, this water quality monitoring system is effective to help ensure the quality of the water in the aquarium so that it always meets the standards.
Selection of Feature Driven Development (FDD) Model in Agile Method for Developing Information System of Mosque Management Sasmitoh Rahmad Riady; Khalis Sofi; Jafar Shadiq; Rita Wahyuni Arifin
Journal of Computer Networks, Architecture and High Performance Computing Vol. 4 No. 2 (2022): Article Research Volume 4 Number 2, July 2022
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/cnahpc.v4i2.1469

Abstract

This paper discusses about software development for building a project using the Feature Driven Development (FDD) model contained in the agile method. As in other agile methods, the Feature Driven Development model has additional properties to implement functions and needs in a short iteration. In terms of the characteristics contained in several other agile models almost all of them have similarities so that makes the stakeholder confusion in determining which model will be chosen as a method of software development. This study focuses on the search for a number of suitable project specifications in the selection of Feature Driven Development models for software development. From the research that has been done on several papers there are several aspects of design and construction in software development by emphasizing the quality and high level of features in developing a software using the Feature Driven Development model. In facilitating the results of the Feature Driven Development model, we will provide a case study of Mosque Management Information System which has several features, such as content management, information of prayer time, online reading Qur’an, and Petty Cash Mosque management. This case is implemented by Feature Driven Development model with short iteration, because this project had done in several months
Penerapan Absensi Kuliah Berbasis QR Code dengan Modul Raspberry Pi3 Menggunakan Metode Arsitektur Zachman Framework Implementation of Lecture Absence Based on QR Code with Raspberry Pi3 Modul Using Zachman Framework Architecture Method Bei Harira Irawan; Sasmitoh Rahmad Riady; Khalis Sofi
Prosiding Seminar Nasional Unimus Vol 1 (2018): Hilirisasi & Komersialisasi Hasil Penelitian dan Pengabdian Masyarakat untuk Indonesia
Publisher : Universitas Muhammadiyah Semarang

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

Abstract

Penelitian ini bertujuan untuk mengefektifkan sistem absensi perkuliahan dan menanggulangi adanya indikasikecurangan atas absensi mahasiswa dalam proses perkuliahan di kelas. Daftar absen manual menyebabkan losttime perkuliahan dan pemborosan kertas, maka dari itu perlunya adanya sistem absensi untuk mengurangipermasalahan tersebut. Dalam perancangan sistem ini peneliti menggunakan metode model Arsitektur ZachmanFramework, kemudian diuraikan berdasarkan abstraksi yang dilihat dari sudut pandang dariPlannerPerspectiveyaitu dosen dan OwnerPerspective yaitu mahasiswa. Penelitian ini menghasilkan sebuah rancangan alat sebagaialternatif absensi perkuliahan yaitu menggunakan QR Code. Dimana QR Code tersebut akan di generateolehmahasiswa untuk absen pada sebuah portal atau sistem dosen berbasis online, lalu di-scan oleh camera yangterhubung ke Raspberry Pi3. Data hasil scanner ter-generateke system di website dan tersimpan dalam databasedan dapat diakses kapanpun dan dimanapun dosen mengajar. Sistem ini menjamin keakuratan data yang didapat,serta mengefisiensikan proses rekapitulasi absensi mahasiswa bagi dosen pengampu mata kuliah yangbersangkutan, Kata kunci: absensi, arsitektur Zachman Framework, QR Code, Raspberry Pi3
Analysis of Helpdesk System Development in A Manufacturing Company using Design Thinking Approach Sofi, Khalis; Santoso, Bagus Jati
International Journal of Advances in Data and Information Systems Vol. 6 No. 1 (2025): April 2025 - International Journal of Advances in Data and Information Systems
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/ijadis.v6i1.1354

Abstract

The IT department is vital in manufacturing companies, including PT XYZ, where operations involve transforming raw materials into finished goods. With the complexity of these activities, IT support is essential for managing software and hardware that aligns with business processes. PT XYZ implemented a helpdesk system to streamline IT services but encountered communication issues in the ticketing feature, affecting system efficiency and effectiveness. This research aimed to improve communication between users and administrators to enhance efficiency in monitoring and maintaining IT infrastructure. The study used a design thinking approach, chosen for its collaborative, flexible, and adaptive nature. The process began with the empathize stage, using usability scales and in-depth interviews with users to identify pain points and gather insights. Define, ideate, and prototype stages involved brainstorming and designing solutions in collaboration with the IT team. Finally, the testing stage evaluated user feedback on the improved system. The redevelopment of the helpdesk system yielded significant results, including a 12.27-point increase in usability scale scores. Enhanced features addressed user needs effectively, and all components of the upgraded system were well-received during testing. The improvements led to more structured and systematic communication, making the helpdesk system at PT XYZ more effective and efficient.
Co-Authors Antika Zahrotul Kamalia Aswan Supriyadi Sunge Bei Harira Irawan Jafar Shadiq Moh Khamim Muchromi Ahmad R. R. Wening Ken Widodasih Riady, Sasmitoh Rahmad Rita Wahyuni Arifin Santoso, Bagus Jati Yazi Adityas