Technological developments encourage changes in the way decisions are made. In terms of stopping the application of urea fertilizer, farmers still rely on BWD observations. In this study, using the RnD method by directly observing the research location in the farmer group Gapoktan, in the village of Tosari, Kendan district and analyzing the problem then making a prototype which will be tested by experts. In this study, a tool was made using NodeMCU with TCS3200 sensor to detect color, which was then sent via the internet to the database using IoT technology. In this study, using several trials with different parameters of urea fertilizer use and the results of the TCS3200 sensor can detect colors according to what is on the BWD and send data to the database via the internet. In this system, farmers can recommend the use of suitable urea fertilizers outside a certain area so as to minimize errors in the observation on BWD, this will make the use of urea fertilizer to be the right dose.
 

The administrative financial data processing management system at SMP N 17 Semarang is carried out by students coming directly to pay to the Administration, because the use of 1 existing computer facility in the Principal's room and 3 computer facilities in the Administration room makes payment data recorded in a book. big. The data used in SMP N 17 Semarang still uses manual recording or bookkeeping, which can result in errors in recording payments with the same student's name, data easily lost or torn. The Grounded Research method is expected to be able to produce quality management information to support management policies. In addition, with good management of administrative activities, it is hoped that it will be able to provide comfort for students and parents of guardians in making transactions. To anticipate the occurrence of tuition payment services that are slow, not fast and inaccurate due to the large number of student payments. Seeing the duties and functions that must be carried out by administrative officers of SMP N 17 Semarang to hold a School Information system, the authors built a School Management Information System as an alternative to make it easier for administrative officers to input new student admissions, student data collection and tuition payments. which is in SMP N 17 Semarang.

This study designed a system that is able to assist companies in calculating cash receipts and disbursements. The Accounting Information System for Cash Receipts and Expenditures will be equipped with the use of user log-ins to maintain the level of data security so that not just anyone can misuse the data. The system designed will also be equipped with security of access rights and data storage systems, providing a database using the Visual Basic 6.0 programming language that holds records of cash receipts and disbursements to be a good report, summarizing the process of moving data from ledgers to becoming cash reports flow, and can document each period's report so that it can be grouped properly. The research method used is the Borg and Gall R&D research approach which consists of 10 stages, out of 10 R&D stages the author only conducts the research approach to the 6th stage alone. and monitoring cash flow very well. In addition, it can also produce reports that are precise, accurate and efficient.

Tujuan penelitian ini adalah membangun Sistem Informasi Arsip Digital Kartu Catatan Siswa Berbasis Web.  Aplikasi ini  untuk membantu sistem pengelolaan dan pengendalian data catatan siswa yang semula masih dilakukan secara manual di lingkungan SMK Negeri 5 Semarang. Permasalahan pada saat mengelola dan mencari arsip lama yang terdapat dalam catatan pada buku-buku lainnya yang terletak parsial dari bulan ke bulan pada setiap bulanya.
Penelitian ini dengan menggunakan pendekatan penelitian dan pengembangan atau Research and Development dengan merujuk pada tahapan RND milik Soegiyano. Tahap ini di mulai dari tahap potensi dan masalah, pengumpulan data, sampai pada tahap implementasi produk, sehingga dapat menghasilkan data yang akurat saat melaporkan catatan siswa bermasalah dan menentukan surat peringatan dan pemanggilan terhadap orang tua wali murid.
 
Kata Kunci : Sistem Informasi, Arsip Digital, Kartu Catatan Siswa, Berbasis WEB, Metode R&D

financial information in schools. Payment information which is the basis for schools to determine future policies. The object of research in this thesis is the Demak Development High School which is one of the agencies engaged in the field of science and education.
The research objective is to design an effective and efficient school payment administration recording information system and design a school payment administration recording information system that has a system security that can maintain the accuracy of the data. The research method used is the Borg and Gall R&D Development Research model, the Prototyping System Development Method to produce a product in the form of a Prototype with 6 stages: Research and Data Collection, Planning, Initial Product Development, Product Testing, Product Revision, Final Trial.
The conclusion from the results of this study is that this system can facilitate the recording of administrative payment transactions so that there are no mistakes in recording, users can easily present payment reports more quickly so that they can minimize recording time and recording errors, and make it easier for users to print payment reports with affectic and efficient results so as to support and accelerate decision making

Inventory is one component of company assets which is very important in supporting the continuity of operational activities of trading companies. The process of inventory mutation, makes business owners required to be able to provide accurate and relevant information about inventory. This information can be generated from the use of a merchandise inventory information system which can help business owners to know the processes related to the availability of these merchandises. To monitor the process of oil transfer and oil availability on the CV. Sumber Lumas Semarang, business owners still use manual data input by using Microsoft Excel applications and hand-written stock cards. The manual use of this system causes several obstacles, including: frequent occurrences of oil inventory balances due to human error factors in recording items on stock cards, over-stock/stock out of oil inventory in warehouses and late oil inventory reporting due to data from stock cards moved into the Microsoft Excel format every month that requires precision and a lot of time. This makes the oil inventory report is not up to date. Observed at the problems faced today, CV. Sumber Lumas Semarang needs a system which can overcome the problems of merchandise inventory record and can produce relevant and accurate merchandise inventory information.