Class Diagrams Research Articles

Comprehensive analysis of gap formation in the canopy of an old-growth broadleaved forest

We performed a quantitative and qualitative assessment of the dynamics of gap formation in the canopy of intact old-growth polydominant broadleaved forest in a permanent sample area in the Kaluga Zaseki Nature Reserve. Digital elevation models were obtained from aerial survey data of the forest in 2018 and 2021, from which gap diagrams of several elevation classes were constructed. The resulting schematics were expertly analyzed using orthophotomosaic survey data and gap areas were estimated. We conducted a sample ground survey of gaps and regression analysis of the relationship between relative gap area and stand species composition from the primary enumeration data. It was shown that the phenophase at the time of the survey can significantly change the estimate of gap areas, and the height of the stand in the gap cannot serve as a reliable indicator of its age. It was also found that aerial photography reveals a more complex gap structure than ground-based surveys.

Web-Based Sales Information System in One of The Cash Shops Using the Business to Customer Method

Science and information technology's rapid and sophisticated progress motivates humans to generate novel solutions that facilitate easy and speedy information acquisition. Consumer behavior has experienced a substantial transformation in the present digital age. Many people opt for Internet purchasing due to the ease, accessibility, and flexibility it provides. The fashion industry is not immune to this phenomenon, as internet retailers are gaining popularity as a preferred method for buying clothing and accessories. Online retailers offer advantages such as convenient access to product catalogs, the ability to purchase at any time and from any location, and a broader selection of options. This offers a substantial opportunity for fashion retailers to access a larger pool of potential customers and enhance their market dominance. The sales process in a particular fashion store now depends on a traditional system involving direct transactions at the physical store and maintaining sales data through paper documents. This technique encounters multiple impediments that must be surmounted. A significant challenge is the limited accessibility to clients beyond the geographical confines of the physical business. In addition, using paper documents to manage sales data also needs to be improved in efficiency and accuracy. The method is laborious and prone to human errors. As inferred from the background description, the author's objective is to develop a web-based sales information system for a fashion retailer utilizing the business-to-customer approach. This system will streamline the sales process and aid in managing sales data, encompassing product data, customer data, and transactions. The system development will utilize the PHP programming language and the MySQL database, widely employed in online development. The research methodologies encompass literature review, observation, and interviews. The chosen approach for system development is Object-Oriented Software Engineering (OOSE), which utilizes Unified Modeling Language (UML) for system modeling. This includes using various diagrams such as use case, activity, sequence, and class diagrams. Hence, the sales information system is anticipated to offer a more efficient resolution for carrying out sales procedures and enhancing data administration promptly, safely, and precisely. Implementing this strategy will enable the fashion store to expand its consumer base, particularly among individuals located beyond the geographical reach of the actual store, thereby improving overall business performance.

Website-Based Management of School Committee Institutional Development Contributions

One form of community participation in providing education is the formation of a School Committee. The School Committee acts as an independent body that accommodates and places the community's initiative aspirations in forming school policies and school programs in the education unit. Likewise with the School Committee at SMP Negeri 1 Kaloran. The School Committee is given the authority to manage Institutional Development Contributions from students. Currently, the management of institutional development donations still uses manual methods which still poses several risks in managing this data. This research aims to develop a website-based school committee institutional development donation management information system using the CodeIgniter framework by applying the waterfall method in developing the system. To design the system, the UML method is used with use case diagrams and class diagrams as an illustration of system design. Meanwhile, in system testing, the black box testing method with a Likert scale is used to determine the feasibility of the implemented system. The system was successfully implemented with system test results of 90.33%. This shows that the system is feasible to implement and has met user needs.

Analysis and Design of Queue Service Information System Integrated with WhatsApp using UML Method

In the rapidly developing digital era, information systems have become an important element in increasing efficiency and effectiveness in various activities. As an important part of public services, queuing services withstand significant challenges in managing rapid population growth. Long waiting times and inefficient queue management can result in user dissatisfaction, increased workload for service providers, and potentially harm productivity. This research aims to overcome these challenges by identifying, pivoting, and creating an innovative information system integrated with the popular cross-platform application, WhatsApp. The main focus is automating queue service management to increase efficiency and user convenience. The resulting system is expected to provide significant changes in public services, reduce waiting times, and make queue management easier. The Unified Modeling Language (UML) methodology is used in the design of this system, providing systematic guidance to achieve these goals. In this research, we identify problems, user needs, functional requirements, and non-functional systems, including queue registration, queue management, user management, and service management. The results include use case diagrams, activity diagrams, sequence diagrams, and class diagrams, which provide a detailed overview of various aspects of the system. The results of this research can serve as a guide for application developers and demonstrate the benefits of UML in designing complex information systems.

Sistem Informasi Manajemen Data Penduduk Berbasis Website

Management is the process of planning, coordinating, directing, and controlling resources to a set goal. Population data is an important asset in planning and decision-making. Website-based information systems can increase government transparency and involve the public in the management of population data, facilitating computerized data processing so that it becomes more efficient and efficient. Research methods use qualitative methods to understand and explain phenomena in a good context. Data collection techniques include interviews, observations, documentation, library studies, and implementation. Use case and class diagrams are used to identify and describe functions or interactions between actors and systems. In running the system use three actors namely IT staff, admin and head of the hamlet. The purpose of the website is that users can obtain relevant information, make transactions, communicate, interact with administrators and other users globally and in real time. The results showed that with the creation of an information system of population deposition management in Nagreg villages can improve the efficiency in the deposition process and reduce human error, easier to obtain and update information on population data.

Analisis Perancangan Sistem Pakar Pola Latihan Untuk Mencapai Body Goals Menggunakan UML

Technological developments and awareness of the importance of health and physical fitness have encouraged people to look for effective solutions in achieving their desired body goals. Expert systems are one potential approach to assist individuals in designing exercise patterns that suit their goals. This system development method uses UML as a tool for analyzing and designing expert system structures. This expert system will utilize expert knowledge in the fields of fitness and nutrition to provide personalized and effective recommendations. Additionally, integration with technology will allow users to monitor their progress in real-time and receive recommendation updates according to their individual progress.The results of this research are architectural designs consisting of Usecase Diagrams, Activity Diagrams, Class Diagrams, Sequence Diagrams, Deployment Diagrams which can then be used as a reference for creating this expert system application system so that it is hoped that the complete system can become a useful tool and can make a contribution. positive in helping users achieve their body goals with a more focused and effective approach.

Penerapan UML Dalam Sistem Reservasi Perawatan Puskesmas Cikampek Berbasis Website

As technology continues to advance, some Puskesmas are leveraging online services to seize opportunities. In order To keep pace with these developments, the Cikampek Health Center has mandated changes to implement web-based treatment bookings. Puskesmas are community facilities that function as health services. In this research, we designed an online reservation system consisting of use case diagrams, activity diagrams, sequence diagrams, class diagrams, and implementation using UML-based identification methods, analysis, and system design. The use of UML modeling is very effective and helps the reader understand the overall picture of the system being created. The results obtained in the construction of this system aim to make it easier for the community to access Puskesmas services, and the authors believe that this website will help reduce waiting times and improve the processing of patient data. I hope it will be a tool for promotion.

Designing a UML automated drip irrigation system to improve the efficiency of greenhouse agriculture

This article discusses the process of designing an automated drip irrigation system for a greenhouse using the UML (Unified Modelling Language) language. The main purpose of the study is to create a detailed and visual model of the system that describes all aspects of its operation, from collecting data from sensors to controlling the irrigation process. In the course of the work, various UML diagrams were developed, including a use case diagram, a class diagram, a sequence diagram, and a state diagram. These diagrams provided a comprehensive view of the system, its components and their interactions, which greatly simplified the design process and allowed to identify possible problems in the early stages of development. The practical application of the automated drip irrigation system has a number of advantages for greenhouse agriculture. The system optimizes the use of water resources, reduces labour costs and minimizes the influence of the human factor, increasing the accuracy and reliability of irrigation. In addition, it provides the ability to monitor and manage irrigation in real time, which allows you to quickly respond to changes in conditions and prevent possible problems.

Extraction of UML class diagrams using deep learning: Comparative study and critical analysis

Several approaches and tools have been proposed to facilitate the automatic generation of Unified Modeling Language (UML) class diagrams from natural language specifications, based on advances in Natural Language Processing (NLP). However, these tools suffer from difficulties due to the inherent imprecision and ambiguity commonly found in natural language expressions. In this article, we present an overview and a study of approaches and tools designed to extract UML diagrams from textual requirements using NLP and computational linguistics techniques. Furthermore, we introduce approaches employing deep learning techniques. Next, we provide a descriptive study and comparative analysis of the limitations and contributions of these automatic and semiautomatic tools, as well as solutions for improving the existing state of the art.

РЕАЛИЗАЦИЯ ИНТЕЛЛЕКТУАЛЬНОЙ СИСТЕМЫ НЕПРЯМОГО ПРОГНОЗИРОВАНИЯ ВЫРАБАТЫВАЕМОЙ ЭЛЕКТРОЭНЕРГИИ СОЛНЕЧНОЙ ЭЛЕКТРОСТАНЦИИ КАК ПРОГРАММЫ ДЛЯ ЭВМ

The forecasting of electric power generated by a solar power plant enables effective and safe control over electric networks which integrate a cluster of solar power plants. Penalty rates for the purchase of solar power at the day-ahead market, which deviates by more than 5 % of the maximum capacity of solar power plants from the provided hourly model of the day-ahead market of solar power generation, update the accuracy of the day-ahead market model through effective intelligent systems for forecasting solar power generation. It has been found that there is no accessible software for successful forecasting of solar power generation; the advisability and relevance of designing such software with an intelligent system have been shown based on the fi ndings of the examined existing software. The study developed, tested and implemented an intelligent system of indirect forecasting of solar power generation in the form of computer software designed based on a modifi ed fuzzy neural network with an attention mechanism. A class diagram and a block-modular architecture for computer software that implements an intelligent system of indirect forecasting of solar power generation were developed in UML notes using the Microsoft Visio CASE tool. A block-modular architecture provides the fl exibility of computer software. The computer software implementing an intelligent system of indirect forecasting for solar power generation was tested for effectiveness, robust results, and the advisability of its application for building a day-ahead market model. The SCADA database of a solar power plant can be easily integrated with an intelligent system of indirect forecasting of solar power generation.

Граничний стан армованих двошарнірних арок двотаврового перерізу

The method of determining the limit load for double-hinged arches is considered. The calculation is performed using the limit equilibrium method. The cross-section of the arch is taken in the form of a reinforced I-beam. The strain-deformed state of the I-beam material is described by the Prandtl diagram. But unlike the classical diagram, it has different yield points under tension and compression. The reinforcement material is described by the classic Prandtl diagram with the same yield strength in tension and compression.In most cases, the ultimate equilibrium of the cross-section is based on the use of one factor ˗ the plastic moment, upon reaching which the cross-section enters a plastic state with the possibility of unlimited deformation. But such an approach cannot be adopted for an arch, as significant longitudinal forces arise in its sections. Ignoring longitudinal forces leads to errors in determining the ultimate load. Therefore, for arches, when determining the limit state of the cross section, it is important to take into account both the bending moment and the longitudinal force. That is, for the transition of the section to the limit state, it is necessary to apply a limit moment to it, which corresponds to a certain longitudinal force. This leads to the concept of the region of cross-sectional strength, constructed in the coordinates of the bending moment - longitudinal force. The boundary of this region indicates the limit state of the cross-section and is described by the flow conditions, which can be obtained by considering the plastic equilibrium of the cross-section. Using the flow conditions, the equilibrium equation of the arch and some constraints, it is possible to formulate an optimization problem for finding the limit load. Limit load (objective function) is the smallest load that satisfies the arch equilibrium equation, yield conditions and constraints. The project variable is the coordinate of the cross-section that enters the plastic stage. The solution of this problem for arches of constant and variable stiffness was performed using electronic spreadsheets. Arch calculations were also performed in PC Lira-CAD. A comparison of the calculation results showed a satisfactory convergence.

Performance research of C# programming language data serializers using the developed software product for testing

The article deals with the issue of using data serializers for the implementation of projects related to the processing of large volumes of data, as well as the support of high-speed data transmission in distributed systems. It is shown that in this context, the choice of the most effective serialization mechanism is critical for ensuring the performance and scalability of applications. The purpose of this work is to study the effectiveness of data serializers of the C# programming language by developing a software product for testing serializers using objects of different size and type. A review of scientific research on the use of various data serialization formats: XML, JSON, BSON, MessagePack, Smile, Protocol Buffers, Flat Buffers, Apache Thrift was conducted. It was concluded that XML and JSON formats are the most popular today, and their comparative analysis was performed. The expediency of using the JSON serialization format is substantiated, which is due to its safety compared to the binary format, its smaller size compared to the XML format, as well as the support of most software development tools. The .NET framework is chosen, which provides standard tools for JSON serialization of the C# programming language, namely: System.Runtime.Serialize.Json and System.Text.Json, which are supplied by default. The most popular software solutions for serializing C# objects are analyzed, the feasibility of testing such serializers as Jil, Json.NET, Utf8Json, SpanJson and standard serializers is shown in order to identify the advantages and disadvantages of their use for the implementation of specific tasks and projects. The C# BenchmarkDotNet programming language library was chosen to create the tester program. It is noted that this framework of the .NET platform allows you to convert methods into tests and create performance testing thanks to a powerful statistical mechanism. A class diagram and a component diagram of the developed software are given. A study of 5 data serializers was conducted, which included the execution of 7 experiments on serialization of objects with different types of data. The consumption of time and working memory during serialization of small and large objects was analyzed; objects containing one-dimensional, two-dimensional and three-dimensional arrays of natural numbers, an object with a complex chain of class inheritance, as well as an object containing a dictionary. The results of experimental studies showed the dependence of the effectiveness of serializers on the type and volume of data to be serialized. It is concluded that there is no one-size-fits-all serializer that will perform best in all cases. Recommendations for the use of various serializers are provided, taking into account the requirements of a specific project

Dynamic Semiosis: Meaning, Informing, and Conforming in Constructing the Past

Constructed Past Theory (CPT) is an abstract representation of how information about the past is produced and interpreted. It is grounded in the assertion that whatever we can write or say about anything in the past is the product of cognition. Understanding how information about the past is produced requires the identification and analysis of both the sources on which that information is based and the way in which the constructor approaches the task to select, analyze, and organize information to achieve the purpose for which the information was sought. CPT models this dual process, providing a basis for evaluation. It is descriptive, not prescriptive. CPT has been articulated using UML class diagrams with the objective of facilitating implementation in automated systems. This article reformulates CPT using type theory and extends its reach by applying and adapting concepts from semiotics. The results are more detailed models that facilitate differentiating what things meant to people in the past from how the constructor understands them. This article concludes with suggestions for applying CPG concepts in constructing information about the past and identifying areas where further research is needed.

Aplikasi Pengamanan Data Karyawan menggunakan Algoritma Advanced Encryption Standard dan Cloud Computing berbasis Mobile

Documents are valuable assets that often contain important information, including employee personal data, and are vulnerable to security threats such as theft and alteration by unauthorized parties. This research aims to develop an Android-based document security application that combines the Advanced Encryption Standard (AES) algorithm and cloud computing technology. This type of research is developed using the System Development Life Cycle (SDLC) model, which involves requirements analysis, design, coding, and testing. At the needs analysis stage, focus is given to employee data that needs to be secured. System design includes data structure, system structure, and user interface (UI). System design includes use case elements, class diagrams, and application architecture. Coding was done using Flutter as the user interface, Laravel as the backend, and MySQL as the database. System testing uses black box testing. Our test results show that the data security application is successful in carrying out the data encryption and decryption processes. Compared to previous web and desktop-based developments, this application provides a more adaptive solution to high mobility in the work environment. Cloud computing integration provides flexibility in data access, and the use of the Android platform significantly increases user mobility.

Сonceptual basis for building a base of models for determining the value of a construction company's information assets

An actual area of research in the field of increasing the effectiveness of the functioning of modern information and communication technologies (ICT) is the principles and methods of establishing the value of information assets (IA) in order to effectively choose means of their protection.
 The object of research of this work is the decision support system (DSPR) for establishing the value of the information asset of the information and communication technologies of the construction company.
 The purpose of the study is to determine the conceptual foundations of building a base of system models, which would allow creating a flexible dynamic decision support system for the implementation of decision-making processes, having a flexible structure that provides for the possibility of implementing alternative scenarios (options) for establishing the value of information assets.
 The principles and conceptual foundations of building a base of models, a decision-making support system with a flexible structure, configured for the possibility of implementing alternative scenarios of expert evaluation, depending on the degree of certainty and availability of data, are proposed. As a conceptual basis, the structure of the model base, alternative and scenario modeling of decision-making processes, a classifier of scenario formation conditions, a database of models in the form of a class diagram, a multivariate process model of information technology for establishing the value of information assets in the form of a set of hierarchical process models of alternative network modeling are considered.
 In the proposed approach, increasing the probability of the obtained results is achieved due to the fact that the user is given the opportunity to choose the most appropriate and effective evaluation scenario, taking into account the goals and objectives of the evaluation, the availability and degree of certainty of the basic data, the existing resource, time and information limitations when making decisions.

Antenatal care management platform

BackgroundPregnancy is a process of developing a fetus in a woman’s womb leading to anatomical and physiological changes. Currently, numerous health facilities offering antenatal services are yet to adopt health informatics. This led to several challenges, including unskilled, early and poor quality antenatal and delivery care, case traffic because many patients are admitted per day, and shy medical professional doctors, nurses, midwives and nursing aids. The main idea of this project was to design and develop a new system for managing maternal health in antenatal care.MethodsThis web-based antenatal care management platform is designed using XAMPP, PHP, HTML and CSS. It involves designing the stoner interface and identifying the inputs, outputs, and processes of the designed system. The configuration involves the use of case diagrams, sequence diagrams and class diagram tools to achieve the physical consummation of the antenatal care management platform and positive living information system. The purpose of this work was to create a web-based platform for managing antenatal care.ResultsThe designed project was tested by using parameters such as WHO guidelines, security, user-friendliness and data storage. Three testing criteria, namely, unit testing, integration testing and system testing, were used to check the efficiency and effectiveness of the antenatal care management platform (ANCMP). The platform that was created met almost all of the criteria that were set out in the design.ConclusionThis project is objectively targeted to develop a web-based antenatal care management system to overcome the complications that occur during and following gestation.It controls the overall conditioning of antenatal care, which includes the enrollment of expectant mothers, shadowing of the listed day and reminding them via email and effectively recording and saving all medical information about the mothers.

The consideration of semantic gap between design and code

In project management on creation of program application, specialists from different subject areas are involved, who include their contributions, for instance, UI/UX designers who create mock-ups of the future application or developers who write the code according to the prototype. The design conception may go beyond the possibilities of interpreting it from a technical point of view of implementation. The realization of such idea could not to be able to collect on only one defined program platform or language, and accordingly the problem is appeared. To eliminate semantic gap between the designers’ concepts and opportunity of program developers in technical affordance, released methodology, Model Driven Architecture (MDA), which is, on the one hand, a concept for implementation of software, on the other hand a standard. In paper, considerate the MDA and its transformation levels with determine a pragmatical semantics of mapping, reasons of chosen a class diagram as model of transformation and Java language for code generation.

PERANCANGAN SISTEM INFORMASI LAYANAN KEIMIGRASIAN ON THE SPOT (LAKSO) PADA KANTOR IMIGRASI KELAS I TPI PALEMBANG

TPI Palembang Class I Immigration, has a service which is often called a service (Lakso), namely an On The Spot Immigration service, where this service serves the creation of Indonesian citizen passports and residence permits for foreigners' immigration status which have problems when registering the application, because they still use the system manually. The aim of this research is to design an Information System for On The Spot Immigration services so that applicant registration is no longer manual. By using an object-oriented method by using UML (Unified Modeling Language) tools which are designed with Use Case Diagrams, Activity diagrams, sequence diagrams and class diagrams. The system design that is designed produces system design and interface design which consists of input design and output design. Registration.

ANALISIS DAN PERANCANGAN SISTEM INFORMASI MANAJEMEN EKSTRAKURIKULER DI SD KARTKA X-3

SD Kartika X-3 stands out among elementary schools in West Bandung due to its exceptional non-academic achievements, which is why the school mandates student participation in extracurricular activities. However, managing a large number of extracurricular members poses challenges for the school. These issues encompass the registration process, reporting of values, data retrieval, and communication regarding extracurricular activities. To address these challenges, the authors have developed an Extracurricular Management Information System. Data collection methods employed include observation, interviews, and documentation, with the system development based on the prototype methodology. System analysis involves tools like Flowmap and evaluation tables, while system design employs UML diagrams, such as Use Case Diagrams, Activity Diagrams, Sequence Diagrams, and Class Diagrams, in addition to utilizing Balsamiq for interface design, and MySQL for database design. System testing is conducted using the BlackBox approach. The Extracurricular Management Information System streamlines extracurricular data management, prevents paper accumulation, and facilitates the generation of attendance reports.

ANALISIS DAN PENERAPAN SISTEM INFORMASI PRESENSI GURU BERBASIS WEB MENGGUNAKAN QR CODE PADA SMP NEGERI 2 PARONGPONG

The teacher presence information system is a strategic step to increase the effectiveness and efficiency of education in schools. With advances in technology, currently, especially in the field of website development, a website attendance system is needed to facilitate the academic community in carrying out administrative processes. By using the website, the presence system becomes more effective because the academic community can access it from any device. The existence of a web-based presence system also reduces the risk of data loss and damage because the data has been stored in computerized Big Data. The method used in this study uses the Waterfall method or what is often called the Waterfall model. The steps taken are needs analysis, system design using UML (Unifeld Modeling Language), Use Case Diagrams, Activity Diagrams, Class Diagrams, Sequence Diagrams, the programming language used is HTML (Hyper Text Markup Language), PHP (Hypertext Preprocessor), CSS (Cascading Style Sheets) in addition to Jquery, MySQL as a Database and testing with black box testing. Designing, creating and building an information system is a complex process, involving various aspects such as User requirements, Interface design, the ability to record attendance history, data management processes, and the use of software development methods. the main goal is to create a system that can provide maximum benefits in managing teacher attendance in the school environment. The use of QR Code technology in designing a website teacher attendance information system is to take advantage of modern innovations to optimize efficiency and accuracy in the attendance process.