Unified Modeling Language Research Articles

Proposed Web-Based Goods Recording Information System in the Warehouse of PT Bahana Unindo Teknik Plant Plastics Injection

PT Bahana Unindo Teknik Plant Plastics Injection is a company engaged in manufacturing. In the company's warehouse there is a problem, namely the absence of an integrated goods recording system, this is an obstacle because the recording is still done using stock cards and Microsoft Excel. Recording with this method affects the level of speed in the activity of recording goods in the warehouse, recording time takes an average of 10 minutes depending on the variation in the number of items. The proposal given is an information system for recording goods to support activities in the warehouse. System development is carried out using Unified Modeling Language (UML) modeling and creating an information system interface design. The use of an information system for recording goods is expected to shorten the time for recording and provide flexibility in data sharing capabilities in the warehouse of PT Bahana Unindo Teknik Plant Plastics Injection.

Algorithms for improving the visualization of a graphical user interface using augmented reality

The article presents methods and algorithms for improving the visualization of a graphical user interface using augmented reality in the field of education. A general diagram of the application structure is presented, including modules: graphical user interface, web application, visualization block. The diagram shows the «camera» object; it allows you to obtain an image of the real environment, which is sent to the visualization unit and the image processing unit. The internal techniques used by the mobile application for visualizing augmented reality are considered: visualization of an object in accordance with the angle, combination of the object with the image of the real environment. Combining an object with a real-world environment allows students to observe 3D objects or models and conduct interactive experiments, enhancing learning. The application being developed is based on the use of diffuse lighting techniques, specular reflection, refraction and other aspects of physical lighting. This allows you to create visually appealing scenes that take into account the complex interactions of light with the surface of objects. The functions of the graphical user interface block are considered, namely logging into the system, loading new objects, manipulating objects in space. User groups and the functions available to them are highlighted. Application user groups: teacher (access rights: viewing information, managing courses, feedback, viewing work); student (access rights: viewing information, submitting work). The modules and components of the web application are identified and described: application server, action form, data model components, database. Conclusions are drawn about the prospects of integrating augmented reality technologies into the graphical user interface in the field of education.

Unified Modeling Language Quantitative Measures Based on a Behavioural Model

Unified Modeling Language Quantitative Measures Based on a Behavioural Model

A Method for Modeling and Testing Near-Real-Time System Scenarios

Unmanned platforms are becoming more and more widely used in both civilian and military applications. The flight safety of such aircraft is crucial. Therefore, it becomes necessary to formally model and rigorously test their software. Commencement of an unmanned air vehicle’s (UAV) operation requires it undergoing a certification process, which further heightens the quality requirements. The validation process of the designed system is presented on the example of verifying the correctness of the operational scenario involving the transfer of control over a UAV between two ground control stations (GCSs). The paper introduces the method of designing unmanned aerial vehicles and testing their functionality based on finite-state machines. The architecture description of the system encompasses the use cases view and logical view of the 1+5 architectural views model. The paper concentrates on system requirements and their transformation into unified modeling language (UML) state machine diagrams. The authors present a method of mapping requirements to functions related to flight safety and system dynamics models expressed as communicating extended finite-state machines (CEFSMs). Moreover, the paper shows the rules for testing the correctness of state machine models using methods based on determining flows in directed graphs. It should be emphasized that the paper considers the certification of UAV software components from the system safety viewpoint, which directly affects the airworthiness of the air platform.

Pengembangan E- Inventory Peralatan dan Perlengkapan Sekolah Pada SMK Satmanggi Siompu

SMK Satmanggi Siompu is a private vocational high school located on Jalan Poros Siompu, Biwinapada Village, Siompu District, South Buton Regency, Southeast Sulawesi Province. The aim of this research is to understand the current inventory system, design a new system, conduct testing, and implement the system. It is hoped that the inventory information system for equipment and supplies at SMK Satmanggi Siompu can address issues related to inventory data collection and processing. The goal is to enhance performance in inventory data collection and processing. The information system encompasses hardware, software, database, and the user interface of the resulting system. The final stage of the research involves testing the software using the Black Box Testing method. The research method used is Research and Development (R&D), which aims to produce a specific product and test its effectiveness. Data collection methods are descriptive and involve using both primary and secondary data sources. The system-oriented approach uses object-oriented tools called Unified Modeling Language (UML). Analytical tools include use case diagrams, activity diagrams, sequence diagrams, collaboration diagrams, class diagrams, object diagrams, and component diagrams. The system development method uses the prototype method. The system is built using the Bootstrap framework, PHP programming language, and MySQL database

Structure model-based hazard identification method for autonomous ships

There is great interest in the practical use of autonomous ships. Although it is important to identify and address serious hazards at the initial design stage when constructing complicated large-scale systems, it is difficult to capture the entire structure of such a system. To address this issue, in this study, we propose the structure model–based hazard identification (SMB-HAZID) method, which is suitable for performing hazard identification of autonomous ships. The primary feature of this method is performing hazard identification using structure and task (ST) diagrams, a checklist, and keywords. The method includes a modeling method that can describe the overall structure of the system together with each component's tasks, information necessary for task execution, and interactions among the components in an ST diagram. In addition, this paper presents an example of using this method to perform hazard identification of a hypothetical autonomous ship at the early design stage. Through this trial application, we confirmed that SMB-HAZID is suitable for analyzing hazards within an autonomous ship. In our future research, we will improve the proposed method by developing and incorporating a technique for quantifying or semi-quantifying risks corresponding to the identified hazards.

Сравнительный анализ принципов проектирования электрогидравлических рулевых машин скоростных судов

The composition and control principles of steering electro-hydraulic machines of a simple and follower type, intended for rudder shifting of small and high-speed vessels are considered. An analysis of the functioning of existing steering gears for the specified group of vessels was carried out. Deficiencies in the work associated with the element base and composition of the control and electric drive systems of the analyzed steering machines have been formed. The features of the operation of hydraulic systems with drive electric motors of pumps made on direct current, revealed as a result of experiments, are shown. Variants of technical solutions for improving the energy performance of the electric drive are proposed. A comparative analysis of the operation of steering machines with AC and DC drives has been carried out. An assessment of steering machines operation in normal and emergency modes is given. Structural diagrams of control systems of simple and follow-up action are proposed, taking into account the operating features identified during the analysis and the requirements of the Russian classification society. The possibility of implementing an SM electric drive built using a frequency converter – asynchronous motor system powered by an alternating current network and an emergency source has been shown. Options for the implementation of electric drives for pumps of hydraulic stations with a high-voltage battery are proposed. The possibility of creating domestic installations for steering and other ship mechanisms, according to the proposed structural diagrams of control systems for hydraulic stations for high-speed ships, is shown. Recommendations are given for the construction of steering gears for high-speed vessels with a total displacement of up to 100 tons using domestic electrical equipment.

WEB-BASED APPLICATION DESIGN FOR SHIPPING AND RECEIVING GOODS SYSTEM USING POAC ANALYSIS METHOD WITH OBJECT-ORIENTED SYSTEM APPROACH

With the current development of Information Technology, of course, it has a big impact on very significant changes in various fields. Sinar Baru Property is a property development company. Until now the system for sending and receiving goods at Sinar Baru Property is still conventional and not yet web-based and has not been planned, organized, actuated, controlled, so that it is constrained in needing materials for construction. The purpose of this research is to find out the system that is currently running, as well as to design a web-based system for sending and receiving goods using planning, organizing, actuating, controlling analysis at Sinar Baru Property. The research method used is descriptive method and in analyzing and designing the system is the method of analysis and object-oriented design using the Unified Modeling Language. The results of this study are in the form of an application, namely a web-based information system for sending and receiving goods that has a good level of quality and can function to provide information about shipping and receiving data quickly, precisely and accurately and supports digital concepts.

LPMSAEF: Lightweight process mining-based software architecture evaluation framework for security and performance analysis

The article discusses the need for a lightweight software architecture evaluation framework that can address practitioners' concerns. Specifically, the proposed framework uses process mining and Petri nets to analyze security and performance in software development's early and late stages. Moreover, the framework has been implemented in six case studies, and the results show that it is a feasible and effective solution that can detect security and performance issues in complex and heterogeneous architecture with less time and effort. Furthermore, the article provides a detailed explanation of the framework's features, factors, and evaluation criteria. Additionally, this article discusses the challenges associated with traditional software architecture documentation methods using Unified Modeling Language diagrams and the limitations of code alone for creating comprehensive Software Architecture models. Various methods have been developed to extract implicit Software Architecture from code artifacts, but they tend to produce code-oriented diagrams instead of Software Architecture diagrams. Therefore, to bridge the model-code gap, the article proposes a framework that considers existing Software Architecture in the source code as architectural components and focuses on Software Architecture behaviors for analyzing performance and security. The proposed framework also suggests comparing Software Architecture extracted by different Process Mining algorithms to achieve consensus on architecture descriptions, using visualizations to understand differences and similarities. Finally, the article suggests that analyzing the previous version of a system's Software Architecture can lead to improvements and deviations from planned Software Architecture can be detected using traceability approaches to aid software architects in detecting inconsistencies.

A pulse oximeter for measuring the blood oxygenation level considering the carboxyhemoglobin concentration: principles of development, computer model and accuracy assessment

The main method for estimating the level of arterial blood oxygenation is pulse oximetry, which has the advantages of being fast, simple, reliable, and non-invasive. However, in well-known pulse oximeters, oxygen saturation is determined only by hemoglobin functional fractions, which reduces the device accuracy and is unacceptable in certain clinical cases. The known pulse oximeter improvement that considers the dysfunctional fraction concentration, especially carboxyhemoglobin, when measuring the level of blood oxygenation is an actual scientific and technical task. The research subjects. Mathematical, algorithmic, and technical support of a pulse oximeter that measures blood oxygenation levels considering the carboxyhemoglobin concentration. Objective. To expand the pulse oximeter functionality to consider the concentration of carboxyhemoglobin in arterial blood. Methods. Methods of computer simulation for developing a model and estimating the pulse oximeter accuracy that measures the blood oxygenation level considering the carboxyhemoglobin concentration. Results. The theoretical statements of measuring the level of blood oxygenation considering the carboxyhemoglobin concentration and the simplest pulse oximeter structural diagram for measuring are developed. An additional LED used in the pulse oximeter is proposed, and the wavelength choice is justified on the condition of maximizing the carboxyhemoglobin contribution to the optical density of the biological object. Computer models of a traditional pulse oximeter and a pulse oximeter with an additional LED were developed, simulation research was conducted using the developed models, and the device accuracy for measuring the level of blood oxygenation was estimated considering the carboxyhemoglobin concentration. Conclusions. Simulation studies based on the developed models show that the proposed pulse oximeter, compared with the known one, allows determining and estimating a decrease in blood oxygenation caused by the carboxyhemoglobin concentration increasing in the patient’s blood. Considering that light is also absorbed by the third derivative of hemoglobin, carboxyhemoglobin, increases the accuracy of the proposed pulse oximeter in measuring functional saturation.

Systematic Review of Web-Based Decision Support Systems for Clinical Applications: Enhancing Ontology with Unified Modeling Language and Ontology Web Language

This article demonstrates an ontology-based technique that aids in envisioning the problem domain before software development, presenting an approach to assist decision-making for reliable and optimal healthcare administration. The proposed approach is designed for utilization by a Web-Based Decision Support System (WebDSS). The purpose of the study is to aid readers in comprehending how ontologies in healthcare management platforms can be modeled using UML and OWL. For the conceptualization and the design, service modelling and the semantics of the web language are crucial. We demonstrate the use of the Unified Modeling Language (UML) and the Ontology Web Language (OWL) in the administration of healthcare operations and key elements of the model-base of healthcare administration systems. Highly educated systems with automated assistance will allow decision-makers to more effectively incorporate aspects of sustainability into their decisions. In order to generate semantic ontologies for medical management, the present study proposes an ontology creation technique and a Semantic Web framework called Protégé. Web-based technologies, decision trees, data mining, and computational algorithms are implemented by WebDSS to assess medical resources administration information in real-time. These methods are employed to develop a decision making framework for this study. Time series graphs, email reports, and webpages are used to display the test findings. When healthcare thresholds are surpassed, the system uses text messages as email reports to automatically deliver warnings. Our study's primary contribution is the creation of a useful tool that makes it easier for academics studying medical concerns to locate online sites with information.

High-temperature photoelectronic transport behavior of n-TiO2 nanorod clusters/p-degenerated boron-doped diamond heterojunction

N-TiO2 nanorod clusters (Ncs)/p-degenerated boron-doped diamond (n-TiO2 Ncs/p-DBDD) film heterojunction was prepared by hydrothermal method, and the photoelectric properties depending on temperature dependence were tested. Three distinct emission peaks of 402 nm, 429 nm and 454 nm were detected by the photoluminescence (PL) test under 355 nm ultraviolet light and excited in the blue-green region light. The heterojunction exhibited good rectification characteristics and thermal stability from room temperature to 180 °C. The forward current first decreases and then increases with increasing temperature. The 160 °C is considered to be the ideal high temperature for the best performance of the heterojunction, with the rectification ratio reaching 20.667. The carrier transport mechanisms and tunneling process of n-TiO2 Ncs/p-DBDD heterojunction with temperature are analyzed in detail through the established band structure diagram. This study provides an effective way method for the potential development of high-temperature stable optoelectronic devices.

Perancangan dan Pembuatan Aplikasi SIMPORA Berbasis Online dengan PHP

The Tanjung Pandan Customs Office as a State Agency has the opportunity to compete with other customs in Indonesia, as an added value for the Tanjung Pandan Customs Office in its office at the Customs Agency. SIMPORA as an information system for Budget Absorption and Realization was created to meet these needs. The application design in this study was built using the Unified Software Development Process method and the application design used the Unified Modeling Language (UML). This software project iteratively (repeating steps, as feedback from the user) starts from the process of making Software Requirements Design (SKPL), then proceeds with making Software Design (DPPL), then followed by making applications and closing with testing. This process is carried out continuously according to the planning period. The result of this project is software that is also equipped with design and application documentation which in the end is to give the Tanjung Pandan Customs office a winner in the competition between customs offices throughout Indonesia.

Fog Computing-Based System for Decentralized Smart Parking System by Using Firebase

The growth of vehicle number is unavoidable whilst the availability of parking is not directly proportional with this condition. Nowadays, many shopping centers do not have sufficient parking spot, causing customers to have difficulty in finding available parking spots. Research has been conducted to tackle the issue of finding available parking spots. Much of this research proposed the narrowband-Internet of things (NB-IoT) as a fog node. For communication purposes, this NB-IoT-based fog node has some shortcomings, such as security and privacy, lower data rate, higher cost in development, dependency with wireless system, and only covers one area. In this research, the fog computing was proposed to decentralize smart parking system by using Firebase to cover several areas or malls in one system and interface. Instead of using NB-IoT, this research employed decentralized local server as a fog node to deliver a fast data exchange. Firestore database (Firebase) was also used to secure, manage, and analyze the data in the cloud. Conjunctively, the Android application was created as a user interface to book and find the availability of parking spots. The Android application was built using Android Studio and implemented authentication to keep the data access secure and private. The testing scenario was done following the design unified modeling language (UML). The research results confirmed that the fog computing system successfully supported the decentralized smart parking system and was able to be implemented for covering several areas or malls in one system.

SISTEM PENDUKUNG KEPUTUSAN PEMBERIAN PENGHARGAAN KARYAWAN MENGGUNAKAN METODE MULTI-ATTRIBUTE UTILITY THEORY (MAUT) DI PT NIKOMAS GEMILANG

Giving awards is done to increase the morale and motivation of employees. The problem faced by PT Nikomas Gemilang regarding awarding is that it still uses the conventional method, namely in the form of a lottery, so it is considered ineffective and on target by employees who have high work motivation. Decision Support System (SPK) is a system that is used for problem-solving in decision-making, especially awarding at PT Nikomas Gemilang. Making decisions using this system will assist management in determining which employees are eligible to receive awards based on predetermined criteria and to avoid intervention. The method used is Multi-Attribute Utility Theory (MAUT) which solves a problem based on calculations with calculation reference criteria namely attendance, performance, ethics, and discipline. Implementation of this system is expected to facilitate the process of awarding and assist management in making the right decisions and is expected to be able to provide motivation and increase work competition in the corporate environment. The Decision Support System was built using the PHP programming language, Laravel framework, MySQL database, using the Unified Modeling Language (UML) design model, and the Waterfall methodology. The results of this study are expected to increase efficiency and accuracy in awarding and provide a form of transparency in awarding employees at PT Nikomas Gemilang to create justice for all company employees

ОСНОВНЫЕ НАПРАВЛЕНИЯ И ОСОБЕННОСТИ ФУНКЦИОНИРО-ВАНИЯ И РАЗВИТИЯ ОБОРОННО-ПРОМЫШЛЕННОГО КОМ-ПЛЕКСА РОССИЙСКОЙ ФЕДЕРАЦИИ В УСЛОВИЯХ ВОЗРАСТА-НИЯ ГЛОБАЛЬНЫХ РИСКОВ

The article examines the modern composition of the Russian military-industrial complex (DIC). A structural and logical diagram of its participation in increasing the efficiency of foreign trade activities and in the innovative development of the country's economy has been developed. The indicators of exports of weapons and military equipment of the Russian Federation on the world market for military products in 2012–2022 are given in value terms. The patterns and features of the development and functioning of the defense industry as a multifunctional macrosystem of military-industrial production are revealed, the need for their com-prehensive consideration in the development and implementation of strategies, programs and plans for state military-industrial construction. The main features and directions of development of the defense industry in the context of increasing global risks are revealed. The conclusions summarize the research results and pro-pose their use in further scientific research into the issues of defense industry and in the educational process of higher education.

Sistem Layanan Pengaduan IT Berbasis Website Di SMK Bhina Tunas Bhakti

The Bhina ​​Tunas Bhakti Juwana Vocational School IT team is a unit team at Bhina ​​Tunas Bhakti Juwana Vocational School which has the task of managing media and everything related to IT. With current reporting techniques, reporting problems is still relatively slow and has an impact on the IT team's slow resolution of complaints from units or rooms experiencing problems. Therefore, the author has the initiative to build an IT Complaint Service System at Bhina ​​Tunas Bhakti Juwana Vocational School. This system is designed to provide reporting, monitoring and IT problem solving services in the school environment. The research methodology used is a qualitative method that uses observation, interview and literature study techniques in data collection. In designing the system, it refers to an object-oriented approach, so UML (Unified Modeling Language) is used. The output of this research will be a website-based IT complaint service system implemented at Bhina ​​Tunas Bhakti Juwana Vocational School.

Analysis and Design of Web-based Internal Office Memo (IOM) Management System

This research focuses on the design and implementation of a web-based Internal Office Memo (IOM) Management System in the PT InnoArk Servis Internasional Optipedia Team. The main problem relates to ineffective communication and coordination between divisions, which results in backlogs and repetition of work as well as difficulties in monitoring task progress. The research method adopts a System Development Life Cycle (SDLC) approach with a waterfall model and uses the Unified Modeling Language (UML) for system design. Implementation was carried out by utilizing the CodeIgniter framework and MySQL as a database, followed by black box testing of the requirements testing type. The result is a system that successfully improves operational efficiency, team collaboration, and transparency of work progress. This application not only overcomes communication obstacles, but also provides a basis for making better decisions based on actual data, maintaining the smooth implementation of tasks, and improving the quality of team collaboration in the PT InnoArk Servis Internasional Optipedia Team.

Building a Worship Demand Application with The Waterfall Method Using Flutter Framework at The Al-Muttaqin Mosque Suralaga, Indonesia

With the rapid development of modern technology such as smartphones, it has positive and negative impacts in this modern era. The positive impact is easy access to information. Meanwhile, the negative impact is misuse of the smartphone itself, such as opening websites that are not suitable for viewing, one of which is addiction to internet games which makes you lazy about studying. Apart from that, there is also a significant problem, namely travelers and children or teenagers at the Al-Muttaqin Mosque in Suralaga who seem to have quite difficulty carrying religious guidance in the form of a book. To overcome this, an Android-based prayer guidance application was created. It is hoped that this can provide understanding for children and teenagers at the Al-Muttaqin Mosque in Suralaga. As a result, this application was built using the Flutter Framework and the Waterfall method which consists of the user needs analysis stage, namely analyzing what needs and features are needed when creating the application. The design stage is the system design stage using System Flowcharts, UML (Use Case, Class and Activity) diagrams. The implementation stage is the stage of implementing the UI/UX design into a programming language using Visual Studio Code. The final testing stage is the stage of testing the functionality of the application using black box testing and using usability. The results of black box testing show that all menus were successfully executed and the results of usability testing using a Likert scale were 84.8%. This shows that in terms of utility the application built is in the "Very Good" category.

Design and Implementation of a UMLRPAsec-Extension for Robotic Process Automation

Ensuring RPA (robotic process automation) security is a critical aspect when developing and operating automated software robots. One of the key steps for developing secure software robots is the design stage: the identification and specification of the requirements for the security of the system, the description of system precedents, the interaction between the classes involved in the robot being created, etc. Designs using security-oriented formal modeling languages, such as the UMLsec extension of UML, involve not only a visual representation of diagrams but also the possibility to focus the attention on security issues. However, currently, in the scientific community, there is no possibility of using stereotypes specialized for robots—a mechanism for expanding the unified modeling language that would explicitly reflect a specific problem in the subject area. In this article, we propose that the UMLRPAsec-extension for RPA can be used to model security in the RPA context.