http://ejurnal.setiabudi.ac.id/ojs/index.php/tekinfo <p style="text-align: justify;"><span lang="en"><strong>Tekinfo ( Jurnal Ilmiah Teknik Industri dan Informasi )</strong> merupakan jurnal yang dikelola oleh program studi S1 Teknik Industri, Fakultas Teknik, Universitas Setia Budi yang terbit setiap enam bulan sekali yaitu Bulan Mei dan Bulan November pada setiap tahunnya. Naskah yang kami terbitkan mencakup bidang ilmu Teknik Industri dan Teknologi Informasi. Kami terbuka bagi para pembaca dan peneliti untuk berkontribusi mengirimkan naskah penelitian yang mencakup bidang ilmu tersebut.<br></span></p> Program Studi Teknik Industri Universitas Setia Budi en-US Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi 2303-1476 http://ejurnal.setiabudi.ac.id/ojs/index.php/tekinfo/article/view/2352 <p>Mountain climbing is an outdoor activity carried out by the Nature Lovers Student Group (MAPALA) as a sporting hobby. One of the equipment that must be brought by climbers is a mountain jacket. The jacket functions to protect the body from strong winds and cold temperatures (00 C). In the market, the most popular jacket demand is a mountain jacket that has a head cover and is splash-proof or waterproof. However, the mountain jacket is still considered less suitable for the needs of mountain climbers, so it is necessary to develop a mountain jacket according to the needs. The purpose of this study is to redesign a mountain jacket according to the needs of climbers, such as a mountain jacket that can protect the face from rain and is not dazzled by sunlight, a comfortable jacket to wear in hot and cold weather, a flexible jacket that can be folded and multi-functional. The method used in this study is Quality Function Deployment where the product planning and development process is structured and can determine the desires and needs of customers to determine product specifications.. The results of this study in the form of a redesign of a mountain jacket according to the priority of consumer desires are that it has a head cover, is not hot or cold when worn. A flexible jacket can be folded or packable and can function as a sleeping bag.</p> PujiAsih Asih Siti Lestariningsih Damar Saloka Anggoro ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2025-04-10 2025-04-10 13 2 99 108 10.31001/tekinfo.v13i2.2352 http://ejurnal.setiabudi.ac.id/ojs/index.php/tekinfo/article/view/2306 <p>Good production planning can meet the demand and availability of raw materials, as well as proper production planning and scheduling, production control, inventory control, and evaluation. PDAM XYZ produces clean water for the Banyumas Regency area. Water demand at PDAM XYZ is starting to exceed the production capacity limit, so a capacity addition plan is needed to meet the customer's clean water demand. The addition of capacity can be calculated by calculating demand forecasting. Thus, this study aims to determine the best forecasting method for making water demand forecasting calculations at PDAM XYZ and the estimated amount of water demand at PDAM XYZ in the next five years. The forecasting methods used are least square and regression. The accuracy values compared are MAD, MSE, RMSE, MAPE, and Tracking signal. The results of the comparison state that the regression method is better with a MAD value of 129938.4, MSE of 28536740000, RMSE of 168928.2, and MAPE of 0.05. So, in planning the addition of production capacity, the regression method can be used to forecast calculations as a reference for determining the additional production capacity. The forecasting results using the regression method show a value of 4,352,051 m3. Based on these results, it is expected that PDAM XYZ will be able to map the amount of clean water demand so that customer water needs can be met.</p> Anggratha Khemal Pasyah Isnaini Nurisusilawati Fauzan Romadlon ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-sa/4.0 2025-04-15 2025-04-15 13 2 109 121 10.31001/tekinfo.v13i2.2306