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Irrigation is a land irrigation system by damming water sources. Irrigation as the provision, regulation and disposal of water to support agricultural needs. Irrigation is generally used by farmers, especially farmers in rice fields to irrigate and provide water supply to agricultural land, monitoring water stock in rice fields must be done frequently because rice water needs must be balanced with a lack of water supply or excess water supply in rice fields is not good for rice growth . So far, farmers have monitored irrigation channels manually, the location of the rice fields from the farmer's house often causes rice plants to experience scarcity because the floodgates are not opened when the water supply is running low or experiencing water supply. excess because the floodgates are opened for too long, this will greatly disturb the growth of rice plants. Making a monitoring and control system for irrigation channels using a water level sensor installed on the ESP 8266 microcontroller (Wemos D1), the system uses a programming language c. This tool can be used to open the irrigation door if the water supply in the rice fields is below the minimum limit and will close the water gate when the water supply has reached the maximum limit, the servo motor is used to open and close the floodgates. . . The monitoring results obtained will be displayed to users in real time through the android application interface and will be stored in the form of a text file on the storage media.

Oil palm is Indonesia's leading and prime plantation commodity. Plants whose main products consist of palm oil (CPO) and palm kernel oil (KPO) have high economic value and are one of the largest foreign exchange earners compared to other plantation commodities (Fauzi, 2012) PT. Safety Pin River Purun is a company that manages palm kernel products with the products produced there are 2 types, namely CPKO (Cruide Palm Kernel Oil) and PKM (Palm Kernel Meal). From the results of the study it was found that the prototype design was made capable of producing palm kernel assessment calculations using AHP in the assessment process, while the prototype model used was to use the prototyping model method. With this research can be beneficial for the management of PT. The Sungai Purun pin in the process of evaluating palm kernel is more effective and accurate in producing reports

Sistem Pendukung Keputusan merupakan sistem informasi interaktif yang menyediakan informasi, pemodelan dan pemanipulasian data.Sistem itu digunakan untuk membantu pengambilan keputusan dalam situasi yang semiterstruktur dan situasi yang tidak terstruktur. Akibat target tahunan perusahaan masih sulit untuk dicapai, juga dikhawatirkan apabila konsumen berpindah ke perusahaan lain yang mungkin memiliki produk yang serupa dengan harga lebih murah. Oleh karena itu, harus dilakukan pembaharuan strategi promosi dalam bentuk potongan harga atau diskon khusus untuk konsumen yang total pembeliannya terbanyak dalam kurun waktu setahun. Berdasarkan permasalahan yang ada, maka dibuatlah suatu program sistem informasi pendukung keputusan pelanggan tahunan dan pemberian diskon melalui rekap total pembelian konsumen dalam kurun waktu setahun. Untuk metode perhitungannya sendiri menggunakan Metode SAW sebagai pendukung keputusan pemilihan pelanggan terbaik dan TOPSIS sebagai pendukung keputusan pemberian diskon. Dari hasil penelitian dihasilkan : dengan menggunakan bahasa pemrograman PHP dapat digunakan untuk membantu perusahaan untuk memilih pelanggan terbaik dan penentuan diskon secara valid, aplikasi yang telah dibuat dapat digunakan sebagai alat bantu bagi pengambil keputusan dengan tetap berbasis pada sistem pendukung keputusan lebih efektif dalam pemilihan pelanggan terbaik dan penentuan diskon menggunakan metode SAW (Simple Additive Weighting) dan Topsis (Technique for Order Preference by Similarity to Ideal Solution). kata kunci : SPK, SAW, TOPSIS