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This study explores the application of the design thinking approach in the pre-planning phase of subsidized homeownership for Generation Z in Indonesia. As Generation Z enters adulthood and begins to plan for the future, they face various challenges in achieving homeownership, particularly regarding financial issues and access to subsidized housing programs. The design thinking approach is used to gain a deeper understanding of the needs, desires, and barriers faced by Generation Z through the stages of empathy, problem definition, ideation, prototyping, and testing. By focusing on innovative and user-centered solutions, this research aims to design a more relevant and acceptable subsidized homeownership model for Generation Z. The findings of this study are expected to provide insights for housing developers and policymakers in designing more efficient and appropriate housing policies and programs that align with the socio-economic dynamics of Generation Z.

This research explores the use of Augmented Reality (AR) in the prototyping of product design, focusing on mobile applications for e-commerce. The aim of this study is to evaluate how AR can enhance the prototyping process in product design, improve efficiency, and facilitate better interaction between designers and end-users. The research method involves developing a mobile application prototype with AR and testing it with end-users. The results indicate that AR accelerates the design process, improves visualization accuracy, and enhances design communication. This study provides insights into the benefits and challenges of using AR in product design.

In the current era of information technology, easy and efficient transaction management is an important requirement in the business world, both small and large scale. Rumah Makan Mie Happy is a medium-scale culinary business. Happy Noodle Restaurant provides noodle-based preparations. In its daily life, Happy Noodle Restaurant can serve around 100 consumers, so that the service process requires speed to serve consumers. But in fact, Mie Happy Restaurant still uses manual data processing and transaction management, so it often experiences problems such as slow payment processes, frequent loss of receipts or proof of payment, difficulty in recapitulating or reporting transactions both daily and monthly, and frequent errors in the calculation process. From the problems experienced by Mie Happy Restaurant, the author is interested in developing a web-based cashier application that can help in all matters related to transaction management at Mie Happy Restaurant. The research conducted aims to build or develop a cashier application for Happy Noodle Restaurant that can improve the efficiency and effectiveness of transaction management. This cashier application was built or developed using Hypertext Markup Language (HTML) and Hypertext Preprocessor (PHP) with Visual Studio Code editor and MySQL Database Management System (DBMS). The results of testing with black box testing show that the cashier application developed in functionality has run as expected. This web-based cashier application provides convenience for admins and increases the effectiveness and efficiency of operational activities.

The purpose of this study was to develop AKM model mathematics questions using the Yogyakarta cultural context to determine the profile of mathematical literacy of high school students. This type of research is a design research type of development study using an emphasis on repeated cycle development using formative evaluation. This study developed a set of AKM model mathematics questions, with preliminary and prototyping stages. The subjects of the study were class X students of MAN 2 Wonosobo and were determined by partner teachers. Data analysis techniques used document analysis, walk through analysis, and test result analysis. The results of the study showed that: 1) a set of AKM model mathematics questions using the Yogyakarta cultural context that were compiled had met the valid criteria using the Formative Evaluation flow. 2) the results of the study of the profile of mathematical literacy of students in the field test subjects revealed that there were many students who had not completed, especially in the employ category where only 15% (6 out of 40 students) had completed it, namely on question number 8. Likewise in the formulate and interprete categories, both of which were no more than 17.5% of students who managed to get the maximum score. Likewise, in the content category, it can be seen that no more than 15% (6 out of 40 students) were able to obtain the maximum score on question number 8. Meanwhile, in the algebra domain, at least 32.5% (13 out of 40 students) managed to obtain the maximum score, namely on questions 23, 24 and 25. The same thing in the data domain can be seen to be higher than the number domain and geometry domain, although the percentage is quite low, namely 27.5% (11 out of 40 students) who obtained the maximum score.

Nowadays, more and more e-commerce platforms are emerging, creating a highly competitive environment for both individuals and groups. User experience and interface are key factors in attracting users' attention and fulfilling various needs to survive in a crowded market. In this context, the author proposes the prototyping of a chicken egg sales application named EiTech Supply in Cilacap Regency. This application is designed to overcome the problems that chicken egg farmers often face, such as competition between regions and the entry of new farmers with very low prices to attract customers. With the EiTech Supply application, it is expected to reduce these problems and increase the competitiveness of chicken egg farmers both inside and outside the region.    

Kucing adalah hewan peliharaan populer yang sering kali rentan terhadap berbagai penyakit. Ketidakmampuan pemilik untuk mendiagnosa penyakit kucing secara tepat waktu sering kali mengharuskan konsultasi dengan dokter hewan yang sebagian besar hanya tersedia di perkotaan. Penelitian ini bertujuan mengembangkan sistem pakar berbasis web menggunakan metode Forward Chaining dan Certainty Factor untuk membantu mendiagnosa penyakit pada kucing. Metodologi pengembangan sistem ini mencakup tahap persiapan, prototyping, dan penyelesaian. Pada tahap persiapan, masalah dirumuskan dan wawancara dengan dokter hewan dilakukan untuk membangun knowledge base. Tahap prototyping melibatkan pembuatan mesin inferensi dan knowledge base, sementara tahap penyelesaian meliputi implementasi sistem ke dalam antarmuka pengguna berbasis web menggunakan PHP dan framework Laravel. Hasil uji sistem menunjukkan konsistensi tinggi dengan hasil diagnosa manual menggunakan Excel. Sebagai contoh, diagnosa penyakit Virus Panleukopenia memiliki nilai certainty factor sebesar 94,62% pada aplikasi, sementara perhitungan manual menunjukkan 95,21%, dengan perbedaan hanya 0,41%. Hal ini menunjukkan bahwa sistem pakar yang dikembangkan mampu memberikan diagnosa yang cepat dan akurat. Kesimpulannya, sistem pakar berbasis web ini dapat diandalkan untuk mendiagnosa penyakit kucing dan membantu dokter hewan serta pemilik kucing melakukan diagnosa awal dengan lebih efisien.

As human habits change due to advances in technology and information, technology is increasingly important in various aspects of life. Companies must keep up with development trends in the globalization era to develop their products and compete with fierce business competition. Artasari UMKM produces a variety of chips located in one of the villages in Purbalingga Regency. This UMKM still conducts sales and marketing traditionally. Bookkeeping and recording of transactions are still done manually, which causes many problems, such as consumers not trusting the results of calculations. A cashier information system is needed to improve operational efficiency and transaction security. It can help with data collection, bookkeeping, and recording transactions as well as creating financial reports as needed. In this research, the prototyping model is used to design a cashier application at UMKM Artasari. It is considered to help overcome this problem. This research is expected to improve the operational efficiency and security of UMKM Artasari transactions and increase consumer confidence in the calculation results. The result of the design is a system display consisting of several pages which include the login page, transaction data, sales reports, help, and prototype proof of transactions to be printed.

Penelitian ini bertujuan untuk melakukan pengembangan aplikasi monitoring grooming berbasis Android. Aplikasi ini dirancang dengan tujuan meningkatkan efisiensi dalam pemesanan dan pencatatan pesanan grooming serta mempermudah manajemen jadwal dan layanan bagi petgroomer. Metode yang digunakan dalam penelitian ini adalah metode prototyping. Terdiri dari tiga tahap yaitu komunikasi dengan klien, pengembangan sistem, dan pengujian sistem. Setelah melakukan komunikasi dengan klien untuk mengetahui kebutuhan sistem, selanjutnya yang dilakukan adalah melakukan pengembangan sistem. Setelah mengetahui kebutuhan dari sistem, selanjutnya disusun  Unified Modeling Language (UML) dengan tujuan untuk meningkatkan efisiensi pengembangan sistem. Beberapa diagram UML yang dipakai, seperti use case, diagram alir, dan diagram activity. Kemudian, sistem diimplementasikan dengan menggunakan REST API melalui Retrofit dan bahasa pemrograman Java, menggunakan tools Android Studio. Langkah yang terakhir adalah melakukan pengujian terhadap sistem. Aplikasi ini dapat memberikan solusi yang efektif bagi industri grooming hewan peliharaan dengan meningkatkan efisiensi operasional dan memberikan pengalaman yang lebih baik bagi pemilik hewan peliharaan dan groomer.

The condition of the ship's generator coolant is always monitored because it affects the performance of the ship's engine. Maintaining the engine coolant temperature is very important to avoid damage that occurs because the engine coolant is too hot on the engine components. With the internet of things, a technological concept has the ability to connect and facilitate the communication process between machines, devices, sensors and humans via the internet network. The aim of this research is none other than to monitor and automatically fill the water level of coolant radiators on generator engines on ships using an IoT system. This research uses a prototyping method system. After designing the tool, testing the tool, monitoring system and automatic filling of the water coolant radiator on the generator engine, the average error rate in the ultrasonic sensor readings when the first test was carried out was 3.02%, the second error was 2.57%, and the third error was 3.63%. Meanwhile, the coolant water discharge data is known to be 3 seconds to 10 seconds with a discharge of 60.7 mL/s. Where this data is monitored on the Blynk 64 mL/s application with an error rate of 5.43%. Therefore, the monitoring and charging system for this water coolant radiator using the IoT system can work well.

Fresh water is a basic need of the ship's crew in supporting the creation of smooth ship operating activities, therefore it is also necessary to have an auxiliary aircraft that can produce its own fresh water on board to reduce ship operating costs, which is called the Fresh Water Generator (FWG).  FWG is an auxiliary aircraft that can convert seawater into fresh water by evaporation and condensation processes. Therefore, it is necessary to have a tool to monitor the performance of the fresh water generator. The purpose of this research is none other than to monitor temperature conditions, water TDS, and conditions on the input and output streams of the fresh water generator evaporator filter to be more optimal and efficient and to determine the reliability of the fresh water generator performance equipment system using a long distance in order to create better and higher quality fresh water production on board. This research uses a prototyping method system. After designing and testing the tool monitoring system for the performance of fresh water generators using Arduino mega 2560 based on LoRa Ra-02, this system is one of the new technologies that can monitor the performance of fresh water generators to be more efficient and reliable. Then the readings of all sensors can work properly with an average percentage error on the Max 6675 temperature sensor of 0.58%, pressure transmiter sensor 1 of 2.04%, pressure transmiter sensor 2 of 2.04%, and TDS  sensor of 1,70% and the distance to communication between the receiver and transceiver reaches a range of 200 meters without obstacles and 97 meters through obstacles around.

In the digital age, public road lighting (PJU) monitoring efficiency is becoming essential for effective infrastructure management. The research developed a PJU monitoring system based on LoRa technology and an Arduino microcontroller to monitor the operating conditions of PJU solar panels in real time. The system uses the LoRa 433 MHz module for remote data communication and is equipped with a voltage sensor to monitor batteries and solar panels as well as an ACS712 current sensor to measure current consumption on LED lights. The data is displayed on an I2C 16x2 LCD screen, making monitoring easy. LoRa technology offers the advantages of broad communication range and low power consumption. The development method used is prototyping, including needs analysis, system design, implementation, testing, and maintenance. Test results show that the system works well, with sensors providing adequate accuracy and LoRa communication enabling remote data access. The system improves the efficiency and accuracy of PJU monitoring, as well as reduces time and effort in the monitoring process. Overall, the system is an effective solution for PJU management in the digital age.

In the current era of technological development, many people are already using technology in their daily activities. Various sectors have also utilized technology to help their activities. Sate Tancap is a business in the Food and Beverage sector which is quite popular in the Tangerang area and has quite a lot of visitors and buyers every day. The stock or inventory recording system at Sate Tancap is experiencing difficulties and still uses records that are not yet computerized. This research aims to provide an application for admins and cashiers that can be used regarding the lack of a system for managing menus and inventory at the Sate Tancap food stall. This research uses the prototyping method, in this method the researcher analyzes stakeholder needs, then creates an initial system design, then this prototype is approved by stakeholders. So, researchers will carry out the next stage, namely creating a Sate Tancap application website. After that, it is implemented to users and related parties. The existence of a sales and inventory recording system application is useful for satay food stalls, especially for owners and cashiers so that sales activities are more effective and efficient.