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All Journal Jurnal Teknik Industri J@TI (TEKNIK INDUSTRI) Jurnal Ilmiah Teknologi dan Rekayasa UG Journal Prosiding KOMMIT OPSI Jurnal Informatika Universitas Pamulang Jurnal INTECH Teknik Industri Universitas Serang Raya JISICOM (Journal of Information System, Infomatics and Computing) Jurnal Konversi Energi dan Manufaktur Jurnal Abdi Masyarakat Multidisiplin Jurnal Komtekinfo Jurnal Pengabdian Kepada Masyarakat Darma Saskara Analit: Analytical And Environmental Chemistry
Rossi Septy Wahyuni
Jurusan Teknik Industri, Fakultas Teknologi Industri, Universitas Gunadarma
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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OPTIMASI LITERASI ANAK DIDIK DI BIMBINGAN BELAJAR ABADIBA DAN PELATIHAN UKM DI TANGERANG, JAKARTA TIMUR, BEKASI, DAN PASURUAN Nursyamsi, Julius; Mukhyi, M. Abdul; Wahyuni, Rossi Septy; Makmun, Makmun; Fidya, Feny; Chodijah, Siti
Jurnal Pengabdian Kepada Masyarakat Darma Saskara Vol 2, No 2 (2022)
Publisher : Jurnal Pengabdian Kepada Masyarakat Darma Saskara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/abdimasug.2022.v2i2.10013

Abstract

Program penelitian dan pengabdian kepada masyarakat ini memiliki beberapa tujuan utama. Pertama, program ini bertujuan untuk memberikan pengetahuan dan keterampilan kepada siswa-siswi dalam kelompok bimbingan belajar di rumah baca ABADIBA, Insan Citra Utama, Mutiara Qolbu Indonesia, dan Batin Al Birru Indonesia Jaya melalui kegiatan baca, tulis, dan berhitung. Kedua, program ini melibatkan pendampingan dalam manajemen dan administrasi perpustakaan di rumah baca yang sama. Ketiga, program ini menyediakan penyuluhan, pelatihan, dan edukasi terkait kewirausahaan, inovasi, dan pembekalan ide usaha kewirausahaan kepada kelompok masyarakat UMKM dan masyarakat umum. Program ini fokus pada kelompok bimbingan belajar tingkat SD, SMP, dan SMA dengan pendekatan pembelajaran yang disesuaikan dengan kebutuhan siswa. Selain itu, program juga mendukung komunitas UMKM dan masyarakat umum untuk memahami dan meningkatkan kemampuan berwirausaha. Tujuan akhirnya adalah meningkatkan hasil pendidikan, pelayanan perpustakaan yang lebih baik, dan ekonomi usaha yang dikelola oleh masyarakat. Namun, program ini menghadapi tantangan, terutama akibat pandemi COVID-19 dan penerapan PSBB. Beberapa kegiatan harus diubah dan disesuaikan dengan protokol COVID-19, seperti mengalihkan pelatihan masyarakat ke pendekatan virtual dan kelompok kecil.
OPTIMASI PERENCANAAN PRODUKSI AGREGAT PRODUK TUNGGAL DENGAN MEMPERTIMBANGKAN KAPASITAS PRODUKSI Prastiya, Denny Suci; Wahyuni, Rossi Septy
J@ti Undip: Jurnal Teknik Industri Vol 19, No 2 (2024): Mei 2024
Publisher : Departemen Teknik Industri, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jati.19.2.58-69

Abstract

Pertumbuhan pada industri air minum dalam kemasan mengalami peningkatan secara signifikan. Peningkatan pada industri air minum dalam kemasan dipengaruhi oleh tingginya permintaan akan produk air minum bersih. PT X pada studi kasus ini mengalami fluktuasi permintaan yang diakibatkan tingginya persaingan antara industri sejenis. Oleh karena itu PT X pada studi kasus ini menjalin kerja sama subkontrak dalam memenuhi permintaan. Permasalahan yang dialami oleh PT X adalah meningkatnya harga per unit saat melakukan subkontrak. Tingginya harga unit subkontrak dapat mengakibatkan tingginya biaya perencanaan produksi. Penelitian ini dilakukan untuk meminimasi jumlah unit subkontrak dengan mengoptimalkan produksi internal. Model optimasi dibangun dengan fungsi tujuan linear dan fungsi pembatas non linear sebagai usulan optimasi perencanaan produksi agregat. Di samping itu, berkurangnya jumlah unit subkontrak dapat mengakibatkan tingginya produksi internal perusahaan, sehingga model usulan perlu mempertimbangkan kapasitas produksi. Usulan evaluasi kapasitas dilakukan menggunakan pendekatan rough-cut capacity planning. Berdasarkan hasil optimasi model usulan dapat menghemat biaya perencanaan produksi agregat sebesar 5% dibandingkan dengan kondisi nyata. Abstract[Optimization of Single Product Aggregrate Production Planning Considering Production Capacity] Bottled drinking water industry growth has increased significantly. The increase in the bottled drinking water industry is influenced by the high demand for clean drinking water products. PT X in this case study experienced fluctuations in demand due to high competition between similar industries. Therefore, PT X established sub-contract cooperation to fulfill demand in this case study. The problem experienced by PT X was when carrying out sub-contract cooperation. The high price per unit of sub-contracted products can result in high production planning cost. The research is conducted to minimize the number of sub-contract units while optimizing internal production. The optimization model was built with a linear objective function and a nonlinear constraint function as an optimization proposal for aggregrate production planning. Besides that, the reduced number of sub-contract units can result in high internal production for the company, therefore it is necessary to consider production capacity. The proposed capacity evaluation is conducted using a rough-cut capacity planning approach. Based on the results of the optimization of the proposed model, it can save 5% of aggregrate production planning costs compared to actual conditions.Keywords: integer nonlinear programming; production capacity; aggregrate production planning
Artificial Neural Network Model For Optimization of Forecasting Material Inventory: English Prastiya, Denny Suci; Wahyuni, Rossi Septy
Jurnal Teknik Industri Vol. 25 No. 2 (2024): August
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/JTIUMM.Vol25.No2.173-188

Abstract

The increasing competition in the fast-moving consumer goods (FMCG) industry leads to demand fluctuations, negatively impacting the accuracy of demand forecasts and determining optimal lot sizes in material inventory planning. Many companies struggle to adopt appropriate forecasting models, resulting in poor accuracy and higher material costs. This study aims to develop an integrated model for forecasting and material planning using simulation. The artificial neural network (ANN) method is proposed to improve forecasting accuracy, with performance evaluated through mean percentage error (MAPE), mean absolute deviation (MAD), and mean squared error (MSE). The forecast results are then applied to optimize material inventory using the economic order quantity (EOQ) model, considering warehouse capacity constraints. The EOQ model is applied to adjust lot sizes under time-varying demand. The findings highlight the importance of integrating forecasting with inventory planning to provide accurate demand predictions and optimal lot sizing, ultimately minimizing material costs in the FMCG industry. This research contributes to better decision-making in supply chain management by enhancing forecasting accuracy and inventory optimization.
Production Planning of Cassava Chips in Small Home Business Rohmatin, Yuyun Yuniar; Wahyuni, Rossi Septy; Raharja, Mei; Fauzia, Siva
Jurnal Konversi Energi dan Manufaktur Vol. 10 No. 1 (2025)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.10.1.3

Abstract

The production process of cassava chips begins with the preparation of cassava raw materials and then the process of separating the skin from cassava. The process of cutting cassava into a certain size uses a special machine that is operated manually. The process of frying cassava using a large pan and the process of packaging into plastic are the last step of production. Planning the production of cassava chips starts with preparing the needs of raw materials for production for 3 days in a week ordered from 3 different suppliers to prepare production needs, the quantity needed in purchasing from suppliers includes 120 kg of cassava, 9 kg of red chili, 1 kg of garlic, 3 kg of lime, 27 kg of cooking oil, 9 kg of sugar and 0.25 kg of salt. The initial supply of cassava raw materials provided is 120 kg and at the end of the week the production inventory needs are 80 kg left from the use of 40 kg at the end of the week for the next production.
Selection of pilot and flight attendant uniform suppliers in a private airline holding company using the Analytic Hierarchy Process (AHP) method Wahyuni, Rossi Septy; Zaen , Miftakhul; Nursubiyantoro, Eko; Raharja, Mei; Zulkarnain , Yahya
OPSI Vol 18 No 1 (2025): OPSI - June 2025
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v18i1.11505

Abstract

The selection and assessment process of suppliers carried out by Private Airline Holding Company uses subjective assessment. It is not so transparent from the department's head with five criteria of suppliers and just enough sub-criteria. This matter inflicted a few problems, such as the goods received from suppliers not being by the amount ordered, the established quality standards, delays in estimated time delivered and received, and defects often found in the goods. Analytical Hierarchy Process (AHP) is a method that helps solve complex problems by structuring a hierarchy of criteria, stakeholders, and outcomes and by considering many things to develop values or priorities. This research aims to determine the priority criteria and sub-criteria of pilot and flight attendant uniform suppliers and the priority order of the best suppliers, Private Airline Holding Company. This research uses Expert Choice V.11 software to implement the AHP method. The overall evaluation obtained shows that five criteria and thirteen sub-criteria were used. The best supplier based on data processing is Supplier 1, with a value of 0.213.
USULAN PERBAIKAN TATA LETAK FASILITAS PRODUKSI MESIN CUCI PT PANASONIC MANUFACTURING INDONESIA MENGGUNAKAN METODE ACTIVITY RELATIONSHIP CHART (ARC) Ridwan, Ridwan; Julianda, Prameswari Rizcha; Wahyuni, Rossi Septy; Febriyanti, Amalia Nur
UG Journal Vol 19, No 5 (2025)
Publisher : Universitas Gunadarma

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

Abstract

PT Panasonic Manufacturing Indonesia merupakan perusahaan yang bergerak di bidang manufaktur alat elektronik dan berlokasi di Jakarta Timur. Salah satu aspek penting dalam mendukung kelancaran proses produksi adalah perancangan tata letak fasilitas. Tata letak yang tidak efisien dapat menimbulkan pemborosan, baik dari sisi waktu maupun biaya, terutama dalam aktivitas perpindahan material antardepartemen. Tujuan dari penelitian ini adalah memberikan usulan perbaikan tata letak ruang produksi mesin cuci di Business Unit Laundry System menggunakan metode Activity Relationship Chart (ARC) untuk mengidentifikasi tingkat kedekatan hubungan antar area. Data dari ARC kemudian diolah menggunakan perangkat lunak Blocplan untuk menghasilkan alternatif tata letak yang lebih efisien. Saat ini, tata letak terdiri dari 10 area dengan luas lantai produksi keseluruhan sebesar 103 m². Area terbesar adalah fasilitas penyimpanan barang jadi seluas 2.802 m², sedangkan area terkecil adalah toilet seluas 110 m². Tata letak eksisting memiliki pola aliran bahan U-shaped, namun menyebabkan jarak perpindahan antardepartemen mencapai 71,08 meter. Hasil perancangan menghasilkan 20 alternatif layout dengan variasi r-score, dan layout ke-14 terpilih sebagai usulan terbaik. Tata letak baru berhasil mengurangi total jarak perpindahan menjadi 43,8 meter dengan pola aliran berubah menjadi S-shaped. Selain itu, total biaya Operational Material Handling (OMH) menurun dari Rp85.896 menjadi Rp51.432. Perbaikan ini menunjukkan bahwa pendekatan ARC dan Blocplan efektif dalam meningkatkan efisiensi tata letak fasilitas produksi.
ANALISIS INDIKASI RESIKO POSTUR PENGGUNA DESAIN MEJA BELAJAR PORTABEL : Analysis of User Risk Posture Indication for Portable Study Desk Rohmatin, Yuyun Yuniar; Wahyuni, Rossi Septy; Raharja , Mei
Jurnal Konversi Energi dan Manufaktur Vol. 9 No. 1 (2024)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.9.1.1

Abstract

Study portable desks can help people easily move from one another place. Using a study portable desk would make users fix the position once a few moments so that they risk experiencing bodily discomfort. Analysis indications of posture risk can be done by selecting launch rapid upper limb assessment (RULA) analysis from the ergonomic tools toolbar in CATIA software. This research aims to identify movements that occur when using a portable study desk and to analyze user posture risks that can be experienced when using a portable study desk. Based on the research results, it is known that the body posture of portable study desk users for group A on the upper arms is in the range of 20-45°, and the lower arms are in the range of 60-100°. The wrist enters the neutral position range. The rotation of the wrist can be seen that the hand is pointing inward. It has a degree of freedom of 90° with a maximum flexion angle of 160° and a minimum extension angle of 0°. Group B body posture for the stem body has a degree of freedom of 0°. The legs experience a slight downward movement with a degree of freedom of 6.061° and a maximum flexion angle of 135°. Posture analysis results for body parts. Details of the upper arm, forearm, wrist, and wrist twist have a score of 1, which means no posture needs to be corrected and the posture is acceptable. Details of body parts, namely neck, trunk, and legs, are indicated in green, which means no posture needs to be corrected and the posture is acceptable. The score results for body parts with the static posture option get an assessment score of 2 with a green color indication, so it can be concluded that the risk indication for this posture is acceptable.
EVALUASI SUSU SEGAR MENGGUNAKAN LIFE CYCLE ASSESSMENT (LCA) DAN ANALYTICAL HIERARCHY PROCESS (AHP) UNTUK PENERAPAN GREEN SUPPLY CHAIN €‹ €‹MANAGEMENT Tia Haryanti; Wahyuni, Rossi Septy
Analit : Analytical and Environmental Chemistry Vol. 9, No. 01 April (2024) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v9i01.189

Abstract

This study aims to evaluate the impact of waste on the environment in fresh milk production activities. Fresh milk supply chain activities start from dairy farming activities to the distribution process of fresh milk to the fresh milk processing industry. This study aims to identify the most significant potential of fresh milk production activities on the environment, as well as provide improvement alternatives based on the most significant environmental impacts caused by fresh milk production activities. This research was conducted in a dairy farming cooperative which is an organization that produces fresh milk, namely Karya Nugraha Jaya Producer Cooperative Kuningan. Evaluation of the environmental impact of fresh milk production activities using the Life Cycle Assessment (LCA) method. The analysis was conducted using SimaPro 9.5 software. Based on the results of the LCA, it is known that the fresh milk extraction activities that occur on the farm have the highest impact contribution of 3.57E3 Pt. Proposed improvements are given based on fresh milk extraction activities using the Analytical Hierarchy Process approach. The proposed improvement alternatives were analyzed using the pairwise comparison method to determine the highest weight. The Installation of Wastewater Treatment (IPAL) was recommended as a prioritized improvement with a total value of 0.48963.  
Co-Authors Ade Yanyan Ramdhani Aiza Yudha Pratama Astri Anggraini Safitri Dinda Helma Saputry Endang Setyaningsih Fauzia, Siva Febriyanti, Amalia Nur Fidya, Feny Fitriana Indah Pramitasari Gina Awaliah Harda Winari Putri I Anna Tul Munikhah Irewati, Titiek Irwandaru Dananjaya Iswanto, Perli Julianda, Prameswari Rizcha Julius Nursyamsi Julius Nursyamsi Kristiyani Dwi Agustin M. Abdul Mukhyi Makmun Makmun Mei Raharja Nursubiyantoro, Eko Prastiya, Denny Suci Raharja , Mei Raharja, Mei Ratih Windu Arini Ridwan, Ridwan Rohmatin, Yuyun Yuniar Rosyada, Fani Yulia Siti Chodijah Theresia Oshin Rosmaria Pasaribu Tia Haryanti Winarsih Winarsih Yuni Sulistyowati Zaen , Miftakhul Zulkarnain , Yahya