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Waste Bank is an institution that plays an important role in waste management. Kedungmaling village is a village located in Mojokerto district, East Java province, Kedungmaling Waste Bank was established in 2019 and its head is the PKK organization of Kedungmaling village. Some research has been conducted with a case study of a Waste Bank to improve the performance of waste banks that still carry out their business processes conventionally. Most previous research focused on making waste bank applications but still used Kotlin programming language and fire base web service as the database. This research uses the React Native framework to create mobile applications and uses the Rest API as a database. The application design uses the SDLC method with a waterfall model. Application testing using black box gets a percentage of 97% of 89 scenarios and Rest API testing assisted by the postman application gets a percentage of 100% of 94 scenarios. With this application, it can help officers in managing waste and facilitate customers in managing their balances.

providers bouquet products for the community, which is located at Jalan GG. RT.015 Mosque RW.005 Talang Ubi Timur Village, Talang Ubi District, Penukal Regency Abab Lematang Ilir. South Sumatra Province. The lack of information conveyed to the public, resulting in a lack of knowledge the community regarding the sales of the ce florist shop in PALI district due to the sales information system that was carried out at the ce florist bouquet shop is still manual, namely people who want to know about the latest information about bouquet items must come directly so that it is more effective and efficient, because it takes a lot of time to arrive at the ce florist's bouquet shop. So from the researcher will make an android information system for the ce florist bouquet shop which will be accessed through the application that we install using Flutter programming language. This study uses the method (SDLC) Waterfall as a development method to be used when designing and build applications, while the research methods to be used is a descriptive method through a qualitative approach. Research collecting data through direct observation, interviews and library research. help tool uml design to help design the system to be created. With the existence of this android application hopefully helps people save time when want to shop at the ce florist bouquet shop.

Methodology is a very important basic framework in the design and development of professional software, aimed at creating an information system that meets the business needs of an organization. Success in software development relies heavily on managing the software project as a whole. Establishing a methodology includes high dynamics in the design stages of a model that describes the activities and life cycle of a system. SDLC (Systems Development Life Cycle) or Systems Development Life Cycle, in the context of systems and software engineering, is a process that includes the creation and modification of systems, as well as the models and methodologies used to develop them. This discussion will explain the analysis of selecting software development methodologies, including waterfall, prototype, iterative, spiral, and rapid application development (RAD). It is hoped that the results of this discussion can provide considerations in choosing and using the right methodology based on each individual's needs, strengths and weaknesses, as well as other factors such as familiarity with technology, system complexity, system reliability, and short and precise time requirements, as well as referencing several scientific journals.

As a beginner in the business of exotic animals provider, Rumbur Exotic Pet run the business activities manually and do not utilise advanced technology, so it’s performance is less effective and efficient. Therefore, adequate technological support is needed to improve business performance and productivity through designing a Java-based sales information system. This research use the Waterfall model as one of the SDLC (System Development Life Cycle) software development methods. The system design tools that used are Data Flow Diagrams (DFD) and Entity Relationship Diagrams (ERD). The results of designing a Java-based sales information system can increase work effectiveness and efficiency, facilitate data collection and storage of sales information, produce detailed and accurate reports, and encourage productivity and profitability.     

Businesses, regardless of size, must continuously adjust to fast-paced technological advancements to remain competitive, particularly in the hotel industry. The Room Division plays a vital role as the heart of the hotel business, serving as the frontliner. A significant number of hotels have implemented technological advancements inside their operational room divisions, particularly in the front office and housekeeping departments. However, there are only a limited number of apps that can provide automation for analyzing the effectiveness of room attendants using delegation systems. A prototype of the hotel room division application based on the Intelligent Planning System (IPS). The IPS module provides automated analysis with rapid and precise outcomes, minimizing human involvement and reducing the likelihood of human mistakes. The research is conducted by applying the Software Development Life Cycle (SDLC) with the waterfall model, which includes planning, development, testing, and implementation stages. The prototype's anticipated outcome is to serve as a viable solution, with innovative features potentially benefiting the hotel's operational room division.  

Procurement is a recurring activity in a company's business process. While the traditional procurement process is often considered less efficient and effective, it requires a better solution. The traditional procurement process also often requires a long time, high cost, and lack of transparency. This can lead to inefficiency and the risk of misuse. This research aims to develop a more efficient and effective procurement application model using SDLC and waterfall methodologies. This research uses observation methods to study the current procurement process and interviews to get input from stakeholders regarding application needs. The results showed that the developed procurement application model can help companies in a more efficient and effective procurement process. This application model can help companies to save time and costs, as well as increase transparency and accountability of the procurement process.

This research proposes the use of a decision support system based on the Profile Matching method to determine the thesis supervisor. This method is effective in making decisions that are in accordance with the concentration of the thesis title, functional position, and educational level of the lecturer. This research refers to the concept of a decision support system that offers several alternative choices to assist management in making decisions efficiently. The Profile Matching method is carried out with the stages of variable weighting, factor grouping, and total value calculation. This research also refers to related studies that have been conducted previously to build a more effective and efficient system in determining supervisors. The research method used is Research and Development with a waterfall System Development Life Cycle (SDLC) model. The results showed that the use of a decision support system with the Profile Matching method can provide recommendations for supervisors in accordance with the criteria set. Product testing using Aiken's V and ISO/IEC 25010 standards also shows that this system is feasible to use with good validity values and quality that meets standards. In conclusion, the decision support system with the Profile Matching method can help speed up and improve efficiency in determining thesis supervisors in the PTIK study program at UIN Sjech M.Djamil Djambek Bukittinggi. Suggestions for further development are to consider integration with web technology for ease of access and use.

Procurement of goods is a recurring activity in a company's business process. Meanwhile, the traditional goods procurement process is often felt to be less efficient and effective, so it requires a better solution. The traditional procurement process also often takes a long time, has high costs and lacks transparency. This can lead to inefficiencies and risks of abuse. This research aims to develop a more efficient and effective goods procurement application model using SDLC and waterfall methodology. This research uses observation methods to study the current procurement process and interviews to obtain input from stakeholders regarding application needs. The research results show that the goods procurement application model developed can help companies in the goods procurement process more efficiently and effectively. This application model can help companies save time and costs, as well as increase transparency and accountability in the procurement process.

The critical period for the growth and development of infants can be referred to as a critical period. It is said that this critical period in infancy will be very detrimental to the environment around it and it is said that the future due to infancy is very short and cannot be repeated. Newborns are more susceptible to various diseases. Diseases in infants can be identified based on the symptoms that arise. This is caused by several factors including the lack of information about diseases in infants after birth that is known to the general public. Therefore, research is needed on diseases and symptoms that affect babies after birth. One alternative in order to find out the disease in the baby after birth can use an expert system. In building the system, the author uses the Backward Chaining method, uses the Waterfall system development method (SDLC) and the Object Oriented Approach (OOA). The result of this research is a web-based application that can later be accessed or used to make it easier for the public, especially parents of babies, to diagnose symptoms or diseases in babies after birth as early as possible.

PT Cempaka Mega Mandiri is a company engaged in processing and selling swallow's nests, both for export and in the local market. Currently, it is known that the attendance system used in this company has an unsatisfactory level of accuracy. Therefore, the author decided to apply GPS technology to increase efficiency in the attendance process, in the hope of providing a better solution for the company. GPS, which stands for Global Positioning System, is a navigation system that uses satellites to identify and synchronize location data from an object on the earth's surface. In this context, the application of GPS technology is considered a strategic step to increase the accuracy of recording employee attendance. This research uses the SDLC Waterfall method as a software development approach. This method involves sequential stages, starting from planning, analysis, design, implementation, testing, to maintenance. The result of this research is the development of a GPS-based attendance website, which is expected to provide an effective solution for improving the attendance system at PT Cempaka Mega Mandiri.

This research focuses on optimizing accounting business processes through efficient stages of the System Development Lifecycle (SDLC). SDLC is a framework used to plan, develop, test, and maintain accounting information systems. In this study, each stage of the SDLC is analyzed to identify steps that can enhance the efficiency and effectiveness of accounting systems. The research method used is SDLC with a Waterfall approach, involving the stages of planning, analysis, design, implementation, testing, and maintenance. The results show that applying a structured SDLC can help companies manage accounting data more effectively, increase accuracy, reduce errors, and speed up accounting processes. This optimization also includes selecting the appropriate SDLC model, such as Waterfall and Prototype, based on the specific needs of the project and business environment. Thus, this research is expected to provide practical guidance for companies in optimizing their accounting business processes.

Penelitian ini bertujuan untuk menyelidiki dan meningkatkan efisiensi proses distribusi tiket pelanggan pada Divisi Assurance PT. XYZ. Dengan fokus pada implementasi sistem distribusi yang lebih terotomatisasi, penelitian ini mengintegrasikan metode observasi, wawancara, dan studi pustaka. Metode observasi digunakan untuk memahami secara mendalam proses penanganan tiket pelanggan di lapangan oleh Teknisi Assurance, sementara wawancara melibatkan pemangku kepentingan kunci seperti Teknisi Assurance, Helpdesk Assurance, dan manajer divisi. Studi pustaka digunakan sebagai dasar teoritis untuk merinci best practices, keberhasilan, dan tantangan dalam implementasi sistem serupa. Hasil observasi akan memberikan pemahaman tentang dinamika lapangan, sementara wawancara akan menggali pandangan langsung dari pemangku kepentingan. Studi pustaka memberikan landasan teoritis untuk memandu perancangan dan implementasi sistem distribusi tiket pelanggan yang efektif. Pengembangan sistem distribusi tiket pelanggan yang terotomatisasi mengadopsi metode Waterfall dengan pendekatan SDLC (System Development Life Cycle)Diharapkan hasil penelitian ini dapat memberikan kontribusi terhadap peningkatan kualitas layanan pelanggan dan efisiensi operasional Divisi Assurance PT. XYZ dalam menangani keluhan pelanggan.

BUM Desa Podho Joyo Sukorejo has an integrated information system in 1 website application, starting from HR, operations, and finance. However, the staffing information system is still less effective and efficient. The purpose of this research is to comprehensively describe the design of the staffing information system implemented at BUM Desa Podho Joyo Sukorejo. The solution that can be applied to overcome this problem is to develop a website-based staffing information system. The process of designing this system is done through direct observation method to BUM Desa Podho Joyo Sukorejo to collect accurate staffing data. The author chose to apply the waterfall method, a model in the System Life Development Cycle (SDLC) that involves system analysis, design, coding, and testing in sequence. The programming language used in this system is PHP, using Bootstrap as a web design library and MySQL as a database server. After performing a series of steps, including observation, design, and system development, it can be concluded that this system can assist employee staff in carrying out real-time recording of personal data, attendance, work history, and performance evaluation that can be accessed by related parties.  

Mailing is one of the Web systems that is now widely used in modern administrative systems. The correspondence system is a system related to administration that virtually concentrates the components of an organization, where data, information, and communication are made through telecommunication media with the aim of building a system that is able to accommodate each element. This correspondence system is built using the SDLC (Software Development Life Cycle) method with the Waterfall Model software development technique. For the use of the correspondence system, a study was conducted entitled "Web-Based Correspondence System at the Bale Musara Village Office". This research uses quantitative research methods. The results of testing the Web-based Correspondence System are in accordance with the system proposed and expected by system users, especially for village operators and secretaries. Based on the research and creation of the system that has been carried out, there are several conclusions, namely the Making of a Correspondence Information System at the Bale Musara Village Office can be used to facilitate the work of village officials.

Until now, the Beber Village Government, community complaints still have to go to the village office, Kadus houses or BPD. Complaints like that, of course, will take a little time and take a little longer. Data on public complaints is not stored as evaluation Material for evaluation and preparation of the RKPDes. Information submitted from the village government took a long time to reach the community. Although basically now there is a name WhatsApp, the public can also send WhatsApp messages by sending evidence of events and others. However, the complaint message will not be stored in its entirety, even a few days after the message arrives, it's easy to be crushed by other messages, making it difficult to find it again. In connection with the problems above, the researchers tried to design an application entitled Beber Village Community Complaints. In designing this application, the author uses the SDLC Waterfall model method, which is carried out step by step in accordance with the procedures in the Waterfall method. The admin application is built using the Codeigniter Framework version 3 with the PHP programming language. While the client/user uses Android which is built with the Flutter Framework which uses the Dart programming language. The resulting application is in the form of a Client Server. Adam uses the WEB Service view while the client/user uses the Android version. This application will exchange information between the community and the village and between the village and the community. This application aims to make it easier for both the community and the village in exchanging information, which then the information data can be stored intact in the database

Vapors or e-cigarettes are cigarettes with an evaporation process. One shop selling vapor products called the Independent Store sells various kinds of vapor products as well as liquids and other vapor equipment. This Independent Store store has problems in selling because it has not used an online-based sales system. Therefore, it is the desire of the researchers to be able to assist in the process of selling vapor products at the Independent Store store by creating a website. In the process of creating a website for selling vapor products, method is used SDLC (System Development Life Cycle) the waterfall model . With the hope of helping shop owners and employees in the sales process.

Nilai siswa merupakan representasi hasil belajar siswa yang ditepuh dalam satu semester. Nilai akhir siswa diambil dari hasil pengolahan beberapa nilai siswa. SD Negeri Jambangan 1 merupakan sekolah dasar negeri yang pengolahan data nilai siswanya dilakukan secara manual dengan menggunakan Microsoft Excel serta dokumentasi pembukuan. Pengolahan data nilai siswa dengan cara manual dapat menimbulkan beberapa resiko seperti rusak dan hilangnya data nilai siswa. Sistem informasi pengolahan data nilai siswa dikembangkan dengan tujuan mengurangi resiko rusak dan hilangnya data serta mempermudah proses pengolahan data. Sistem ini akan dibangun berbasis website menggunakan model pengembangan Software Development Life Cycle (SDLC) dengan metode Waterfall. Tahapan penelitian berupa analisis kebutuhan, perancangan, implementasi, pengujian dan perawatan. Pengujian sistem ini dilakukan dengan metode Black Box untuk menguji fungsionalitas sistem serta User Acceptance Testing (UAT) untuk menguji sistem apakah sistem mampu memenuhi kebutuhan user. Hasil pengujian black box menyatakan sistem ini sudah layak di gunakan. Hasil pengujian UAT didapatkan 96,42% responden setuju sistem ini dapat memudahkan dan mempercepat pihak sekolah dalam mengelola dan mengolah data nilai siswa. Penelitian ini menghasilkan sebuah sistem yang dapat mengolah data siswa dari data nilai dasar hingga menjadi nilai akhir siswa.