Object-oriented Design Approach Research Articles

Optimizing Electric Vehicle Battery Management Systems for Enhanced Performance and Efficiency in the Automotive Sector

Automotive means of transportation has become the major and cheapest means transportation in Nigeria. This fact has put more pressure on manufacturers to provide customers with high quality Automobiles with the aim of making profits. Nowadays, manufacturers are faced with a major problem in the management of information within a manufacturing plant and creation of effective relationship with customers. As an approach to solving these problems, a detailed analysis is carried out on the existing system to find out the strength and weaknesses of the existing system. And based on the requirements generated, the new system is designed. An Object Oriented design approach is used to describe the various units (modules) that make up the system in terms of classes and objects. The design and development of an Automotive Plant Management system for a manufacturing company is a project developed with PHP, MySQL, Ajax, HTML, JavaScript and Jquery Plugins, it provided better and more efficient management of information generated from Human Resource, Inventory, Company Finance and also Customer Relationship Management In recent years, the surge in the adoption of electric vehicles has played a vital role in reducin fossil fuel consumption and greenhouse gas emissions. However, limited cross-national research has been conducted on the determinants of electric vehicle adoption in developing and developed countries. This study examines the factors influencing the intention to adopt electric vehicles in India (378 participants) and Spain (265 participants). This study develops an integrated model that combines the unified theory of acceptance and use of technology (UTAUT2) and the value-belief-norm (VBN) model while accounting for the impact of national culture. The model is tested using structural equation modeling. The results indicate the integrated UTAUT2-VBN model is a valuable tool for explaining the differences in adoption intention across cultures. Moreover, the national cultural system plays a significant moderating role in most relationships within the model. This study offers valuable insights into the factors influencing electric vehicle adoption in different cultural contexts, which can inform policies and strategies to promote sustainable transportation.

An e-Monitoring System for Patients with Non-Communicable Diseases: A Case of Beni County in the Democratic Republic of Congo

Non-Communicable Diseases (NCDs) are the leading causes of morbidity and mortality globally. 80% of these deaths occur in low- and middle-income countries whose fragile health systems are still grappling with a heavy burden of infectious diseases resulting in a duo burden of disease. While early detection increases the survival rate and ensures a favorable prognosis for most NCDs, about 80% of reported cases are detected at an advanced stage when little can be achieved in treatment. A few such patients are directed to palliative care in hospices. Some challenges include low awareness of NCDs' signs and symptoms, poor treatment, and inadequate early detection and monitoring services. Data collection was done through observation, personal experience, and interviews in the Beni, Democratic Republic of Congo population. The collected data was analyzed to identify the system requirements for a computer-based information system that supports the management of NCDs in rural areas. The findings propose an analytical application software that applies correlation and regression analysis techniques to analyze patients' vitals. This is to be used by community health workers/volunteers, administrators in health care facilities, and medical doctors to support the implementation of early interventions to prevent NCDs from getting worse at an avoidable rate. The system was developed based on an Object-Oriented Analysis and Design (OOAD) approach using the V-Shaped system development methodology. Functional testing was conducted to test the system, and the result for each functionality was successful.

Survey on Employee Tracking System

Abstract: In this paper, an employee tracking system based on web based operating system was developed. All the activities of the Employee will be monitored using this system. Scheduling information and time off requests are often considered part of personnel tracking; as this information will enable managers know when employees are expected to actually be in the office or other work areas. This system is really very helpful for the managers to monitor their employees through mobile phones. It was implemented using JAVA programming language, and the result was stored in SQLite database. An object-Oriented Analysis and design (OOAD) approach was adopted which consist of a well-planned iterative steps. Data was collected using document analysis and field Methods and the application of relevant analytical methods like bar-charts were used to interpret the facts collected. The developed system was able to increased productivity, reduction of cost, instant access to employee attendance record. Keywords: Android Operating System, Tracking system, Employee, JAVA programming and SQLite database.

Proposed Model for Remote Maintenance of CCTV Cameras

A data center is a physical facility in which an organization stores its critical applications and data. In our paper, the researchers developed an Android model for surveillance CCTV system maintenance and fault identification. The descriptive analytic approach and object-oriented systems analysis and design approach were used. The Unified Modeling Language (UML) was used as a tool in analysis and design, and Java was used as a programming language to develop an Android model to maintain CCTV faults. Image freezing, incorrect time and date, and video delay were resolved. It has been developed an Android model that works on smart phones to monitor and maintain surveillance CCTV systems. This model allows users to view faults reports and fix camera faults, such as (image freezing, camera image delay, and incorrect time on the camera) in surveillance CCTV systems from anywhere that has Internet access.

Implementasi QR Code pada Pengembangan Sistem Informasi Presensi Lokakarya dan Seminar

Seminars and workshops are one of the efforts to distribute knowledge from experts. In its implementation, presence is one of the vital implementation components. The activity of the seminar presence is to confirm the attendance of the participants. However, there are still implementation issues in the activities of presence confirmation for participants. The purpose of this research is to analyze, design, implement the technology of QR code to propose the new system in the activities of presence confirmation in the seminars. The research uses descriptive research method with object-oriented design approach and the prototyping model as a system development method. The research result is a web-based seminar presence information system that is expected to handle the issues with better procedures for both participant and event organizer.

Volumetric procedural models for shape representation

This article describes a volumetric approach for procedural shape modeling and a new Procedural Shape Modeling Language (PSML) that facilitates the specification of these models. PSML provides programmers the ability to describe shapes in terms of their 3D elements where each element may be a semantic group of 3D objects, e.g., a brick wall, or an indivisible object, e.g., an individual brick. Modeling shapes in this manner facilitates the creation of models that more closely approximate the organization and structure of their real-world counterparts. As such, users may query these models for volumetric information such as the number, position, orientation and volume of 3D elements which cannot be provided using surface based model-building techniques. PSML also provides a number of new language-specific capabilities that allow for a rich variety of context-sensitive behaviors and post-processing functions. These capabilities include an object-oriented approach for model design, methods for querying the model for component-based information and the ability to access model elements and components to perform Boolean operations on the model parts. PSML is open-source and includes freely available tutorial videos, demonstration code and an integrated development environment to support writing PSML programs.

An improved percentage rate accuracy in predicting mortality in hepatitis-c using an artificial neural network

Background accurate prediction of mortality in Hepatitis-C (Hep C) is essential for policy action and planning. While studies have used artificial intelligent technique (e.g., artificial neural network (ANN)), their appropriateness to predicting mortality in hepatitis-c has been debated. This study presents an improved percentage rate accuracy that is capable of predicting whether a patient suffering from Hepatitis-C Virus (HCV) is likely to survive or die. The constructive research method was adopted for this study, while an Object Oriented Design Approach was adopted for the systems structural design. The Artificial Neural Network system was implemented using java programming language with many program modules and four (4) design classes namely; the Driver class that runs the application program, the Neural Network class, the Neuron and the Layer classes. The network was trained using back propagation machine learning algorithm, a learning rate of 0.8 and a learning error of 0.05. While the weights used for the training were random numbers ranging from -1.0 to +1.0. The maximum number of training sessions was set to 10000 assuming the network does not converge to the leaning error of 0.05. The result of the network showed 85% accuracy in predicting cases of the patients with positive hepatitis C virus that may survive and also 50% accuracy in predicting cases of patients with positive Hepatitis-C Virus (HCV) that may likely to die given the provided data. Neural network is a powerful classification and prediction tools that can help in predicting the outcome of Hepatitis-C virus (HCV) infections. Recommending experiment on the network architecture with a view to either increase the hidden layers or increasing the number of units in the hidden layer. Also, more extensive testing and training should be carried out to achieve the desired result.

Learning Software Development through Modeling using an Object Oriented Approach with Unified Modeling Language: A Case of an Online Interview System

This paper demonstrates the learning of software engineering through modeling using Object-Oriented Analysis and Design approach with Unified Modeling Language. An online interview management system case project to the whole class was used to develop the software requirement specification. Through modelling, the processes to be considered in software development were also elaborated, where it starts with the identification of major or basic processes of the domain of application, followed by the identification of activities to be performed under each basic process and, finally, transforming the activities highlighted in the functional requirements presentation. Modeling was practised by students through group case projects, and students were active, engaging and focusing on the learning process in such a way that more than 85.9% of students had the courage to attempt design questions during university examinations.

Object-oriented systems engineering for networked infrastructure projects

ABSTRACT Object-oriented systems engineering has been associated with software-intensive projects since the mid-2000s. However, the design of networked infrastructure projects that require multiple physical nodes, such as railway networks, also provide natural examples that benefit from an object-oriented design approach. Key object-oriented concepts such as abstraction, inheritance, encapsulation and component reuse provide an elegant way to analyse system behaviour whilst also managing the physical design at multiple infrastructure sites. In this paper a worked example of a transport infrastructure project that benefits from an object-oriented approach is developed. The paper illustrates the use of abstraction to establish a logical architecture and the use of inheritance to create a physical architecture that represents the nodes of the deployed system. Encapsulation is illustrated through the capacity to add local requirements, and the benefits of component reuse are demonstrated through the development of alternate architectures within the model.

Mapping UML Sequence Diagram into the Web Ontology Language OWL

In this paper, we propose a new mapping technique from the OMG’s UML modeling language into the Web Ontology Language (OWL) to serve the Semantic Web. UML (Unified Modeling Language) is widely accepted and used as a standardized modeling language in Object-Oriented Analysis (OOA) and Design (OOD) approach by domain experts to model real-world objects in software development. On the other hand, the conceptualization, which is represented in OWL, is designed to process the content of information rather than just present the information. Therefore, the matter of migrating UML to OWL is becoming an energetic research domain. OWL (Web Ontology Language) is a Semantic Web language designed for defining ontologies on the Web. An ontology is a formal specification naming and definition of shared data. This technique describes how to map UML Models into OWL and allows us to keep semantic of UML sequence diagrams such as messages, the sequence of messages, guard invariant, etc. to make data of UML sequence diagrams machine-readable.

Design of decision support system for blood analysis

Blood analysis is a medical check by identifying blood that gives an explanation of health and is one way to detect certain conditions. Blood type determination is one of the scopes in a blood analysis. This research aims to design a decision support system for blood analysis Solver-oriented for the determination of blood type with ABO system (blood type system A, B, AB, and O) and Rhesus based on Immunohematology Concept theory. The system development method used is Big-Bang Model, with an object-oriented design approach. The result of this research is a software that can be used by health laboratories to assist the process of determining the blood type. With the use of decision support systems information technology-based, the results of the analysis of blood group determination will be more accurate to minimize the occurrence of errors in the determination of blood type.

Computer-aided investigation of special issues of the response of seismically isolated buildings

This paper presents indicative results from the numerical investigation of two special issues of the seismic behaviour of base-isolated buildings, using custom-made software that utilizes modern objectoriented design approaches. The first issue concerns the modelling of the nonlinear behaviour of seismic isolation systems, focusing on the lead rubber bearings (LRBs), which are among the most commonly used seismic isolation systems. In particular, the inaccuracies between the actual behaviour of the LRBs, which can be more precisely represented by the Bouc–Wen model, and the usage of a bilinear inelastic model, which is often used in practice, are assessed through numerical simulations and parametric analyses. The second issue concerns potential pounding of base-isolated buildings with adjacent structures, when the available clearance around a seismically isolated building is limited, during very strong earthquakes. The consequences of potential pounding and the influence of certain parameters on the overall seismic response of base-isolated buildings are also assessed through numerical simulations and parametric analyses using custom-made software.

NEVESIM: event-driven neural simulation framework with a Python interface

NEVESIM is a software package for event-driven simulation of networks of spiking neurons with a fast simulation core in C++, and a scripting user interface in the Python programming language. It supports simulation of heterogeneous networks with different types of neurons and synapses, and can be easily extended by the user with new neuron and synapse types. To enable heterogeneous networks and extensibility, NEVESIM is designed to decouple the simulation logic of communicating events (spikes) between the neurons at a network level from the implementation of the internal dynamics of individual neurons. In this paper we will present the simulation framework of NEVESIM, its concepts and features, as well as some aspects of the object-oriented design approaches and simulation strategies that were utilized to efficiently implement the concepts and functionalities of the framework. We will also give an overview of the Python user interface, its basic commands and constructs, and also discuss the benefits of integrating NEVESIM with Python. One of the valuable capabilities of the simulator is to simulate exactly and efficiently networks of stochastic spiking neurons from the recently developed theoretical framework of neural sampling. This functionality was implemented as an extension on top of the basic NEVESIM framework. Altogether, the intended purpose of the NEVESIM framework is to provide a basis for further extensions that support simulation of various neural network models incorporating different neuron and synapse types that can potentially also use different simulation strategies.

Analyzing the Comprehensibility of Aspect-Oriented Modelling and Design of Software System

Implementing any big software system is a complex task. One of the major reasons for this is that, there one would like to modularize but for which the implementation would be spread out. Such concerns are more commonly known as Aspects. For example security aspect has to be taken care irrespective of the fact, whatever business logic is being implemented. These concerns cannot be modelled appropriately using traditional Object-oriented approach as these Aspects, manifest themselves as behaviours that are tangled and scattered across a system. Due to this fact, it affects the comprehension capabilities of modelling artefacts of the system also these issues lead to problems achieving traceability of aspects throughout the development lifecycle. Aspect-oriented Analysis and Design (AOAD) has been accepted as an alternative approach to tackle such concerns in an effective manner. This paper presents a comparative study of effectiveness of Aspect-oriented Analysis and Design versus Object-oriented Analysis and Design approach and analyses the results of both of these approaches on the comprehensibility of software systems’ knowledge. General Terms Object Oriented, Modelling and design, Aspect, Analysis and Design

Design and Implementation of a University-Based Information Service Centre with SMS Notification (Obafemi Awolowo University as a Case Study)

Coordination of learners and resources form the basic process in the delivery of education in Universities. The use of mobile computing can be proved to be of immense help in this coordination. This paper presents the description of a suitable software system that can deliver information services with mobile functionality to the content subscriber (student in this case) using Obafemi Awolowo University, Ile-Ife (OAU) as a case study. The mobility provided was achieved using Short Message Service (SMS) over Global System for Mobile Communication (GSM) Network with the hardware implemented on a GSM Nokia phone acting as a modem. Object-Oriented Analysis and Design (OOAD) approach with the Unified Modeling Language (UML) was employed to document the software artifacts of the applications. The proposed system was implemented using Java programming language. The software developed integrated subscription, payment and billing, user profile management, efficient mobile architecture, and ease of content publishing, all loosely coupled, to allow for further extension to the service architecture. Keywords: Information Service Centre, SMS Gateway, GSM modem, Message Tokenizer, JAVA API.

Investigating the seismic response of ancient multi-drum colonnades with two rows of columns using an object-oriented designed software

A software application, based on the Discrete Element Method (DEM), has been developed, using a modern object-oriented design and programming approach, in order to enable the effective simulation of multi-drum columns and colonnades under harmonic and earthquake excitations. This paper examines specifically colonnade systems with two rows of columns, one over the other, under various ground motions. The computed results show that the frequency content of the ground motion affects mostly the response. The displacements of the upper level columns in respect to the displacements of the lower level columns are affected more by the frequency content of the excitation.

An object-oriented approach for mechanical components design and visualization

In this paper, development of shape modeling tools for engineering design, analysis, simulation, and visualization is presented. The approach based on the idea of function-based shape modeling is combined with the power and versatility of the object-oriented programming (OOP). An OOP code, initially developed as a teaching and learning tool for educational use in an undergraduate Modeling and Simulation course, to generate mechanism components is presented. Different parametric, explicit, and implicit functions or their combination are used to generate mechanical components shapes. Using a blending process, sophisticated shapes have been generated on the graphical interface. However, the ideas and concept of the OOP mechanical components design presented in this paper can be applied to other application areas.

An Object-Oriented Approach for Structure Design of Property Calculation Programs Using Equations of State

A new object-oriented approach for designing general property calculation programs using different types of equations of state (EoS) is presented in this work. It helps to ease the programs’ extensibility, reusability, and maintainability and, at the same time, minimize the code redundancy. The approach consists of two parts: (a) the total Helmholtz free energy function is separated into specific terms, based on physical meanings or mathematical expressions, independent of the properties of interest, and the same or similar specific terms used in different equations of state are abstracted to general algorithms; (b) the general relationships between these algorithms and the properties of interest are implemented at the highest level of the program. According to this strategy, a general cubic algorithm can be abstracted for all of the cubic EoS. The general hard-sphere, hard-chain, and association algorithms can be aggregated into different Statistical Associating Fluid Theory (SAFT) family EoS with differ...

An integrated object-oriented approach for design and analysis of an agile manufacturing control system

The agile manufacturing paradigm has emerged as an important concept in the development of manufacturing systems. The control software, developed based on the object-oriented technology, leads to reusability, reconfigurability, and scalability; and the agility of a manufacturing control system can be achieved. In this research, an efficient and systematic methodology for developing an object-oriented agile manufacturing control system is proposed. The proposed development process is divided into four stages: functional analysis, static structural analysis, behavior analysis and verification, and system implementation. The Integration Definition for Function Modeling (IDEF0), Object-Oriented Petri Net (OPN), and Unified Modeling Language (UML) are integrated into the corresponding stages based on their characteristics. In order to develop the system rapidly and efficiently, the transformation rules between the IDEF0 and OPN, and between the OPN and sequence diagram are conducted. In addition, the attributes and operations for each object are also defined directly from the OPN model. The result of the integrated IDEF0/OPN/UML systematically leads to object-oriented control software design for manufacturing systems. Finally, an assembly and packaging system is given to illustrate how the integrated object-oriented approach is implemented for developing the manufacturing control system.

TINJAUAN TEORITIS TENTANG MIGRASI PENDEKATAN RELASIONAL DATABASE KE PENDEKATAN OBJEK SISTEM INFORMASI AKUNTANSI

The object-oriented approach in system design and development is gaining popularity. Some literature in information system demonstrate that object-oriented approach is viewed as superior to conventional system development such as relational database approach. There were many advantages of object-oriented approach such as easier modeling, more efficient model reuse and more convenient maintenance. In this paper we introduce you to object-oriented design to Accounting Information Systems by migrate the relational approach to object-oriented approach based on entity relationship diagram for revenue cycle.