Object-oriented System Development Research Articles

Application of Rapid Application Development Method in Designing Knowledge Management System to Improve Employee Knowledge and Performance at Ministry of Agriculture

This research aims to design and build a knowledge management system that can accommodate, manage, and disseminate knowledge to increase employee knowledge. In this research, data collection was obtained in three ways, including observation, interviews, a literature study, and a study of similar literature. The author uses the building block knowledge management method, unified modeling language (UML), to design a web-based system with a user interface that is quite easy to use. In this research, the author uses an object-oriented system development method, namely rapid application development (RAD), which uses unified modeling language tools to describe use case diagrams. Based on the research results, it was found that the KMS was built on a web basis using the RAD (rapid application development) approach and UML (unified modeling language) notation for system analysis design and PHP and MySQL for coding and databases. Before the existence of KMS, searching for documents could take 10 minutes, whereas after the KMS application, users only need five minutes to search for stored documents, resulting in a time efficiency of nine minutes. This system also helps employees communicate with each other anytime and anywhere by creating new discussion topics. Apart from fostering a culture of knowledge sharing, discussion forums in this system can be used as a place for employees to collaborate and find solutions.

A Clinic Appointment System with Authentications for Klinik Sejahtera

The clinic is a health facility for outpatients in indigenous communities. Traditionally, patients need to walk into the clinic or telephone the clinic if they want to make a medical appointment. For this project, Klinik Sejahtera has been chosen as the case study. Klinik Sejahtera is located at Parit Raja, Johor. Klinik Sejahtera was using “first come, first serve” to their patients that came on that day. Usually, the appointment will be taken at the counter during the patient's come to the clinic. The responsible employee at the counter will ask the patient for their identity card and search for the record. They also offer an appointment by contacting the clinic. The problem arises when staff need to record manually and need to remind the patient about the appointment. There are also problems with duplication because of too many physical reports. Therefore, this project proposed a clinic appointment system with authentications which is password-based and Completely Automated Public Turing Test to Tell Computers and Humans Apart (CAPTCHA). The system will be web-based. The web-based will be used by the patients, nurses, and doctor. Object-oriented system development is used for the methodology of the proposed system.

Design of Web-Based E-Perpus Information System

The library of a specific MTS school in Cianjur currently employs a manual data processing system, which involves the utilization of handwritten notes in the form of notebooks. This research aims to transform the manual process of book data input and borrowing into a web-based digital medium utilizing object-oriented system development techniques and descriptive research methodologies. The application features a library menu that enables users to access a comprehensive list of available libraries remotely without needing a physical presence at the library. The software system has been developed utilizing the PHP programming language and MySQL database and is furnished with the Bootstrap framework. The findings of this investigation suggest that the utilization of computerized data processing procedures would facilitate ease of processing and yield outcomes of greater precision in contrast to manual methods.

Sistem Informasi Pendanaan Proyek Berbasis Web Pada Perusahaan Jasa Konstruksi

CV. YustiKarya as a construction company realizes that the ability to manage project finance is one of the important requirements for smooth project management. CV. YustiKarya often has to manage several projects simultaneously with remote locations. This condition made it difficult for financial staff in the office to manage project financial allocations and also made it difficult for project managers in the field and had to report the status of project expenditures to the office. This difficulty drives CV. YustiKarya is to improve the project's financial management system which originally used a spread sheet to become a web-based information system. Web-based information systems will be developed using object-oriented methods. The object-oriented system development method was chosen because of its modular development capabilities and adapts to system requirements. The information system that is produced is able to create a construction project management system starting from employer entry, contract entry, billing entry, printing proof of receipt, printing proof of expenditure, and generating project income and expenditure reports online. Web-based information systems will automate the financial status of projects whose locations are scattered. This system also makes it easy for directors to be aware of current project developments.

Design and Development of Web based E-Commerce Application for Logo Sales “Tokologo” Using Codeigniter

A logo can be considered as the main success factor of a company. It is not only the representation of a company vision but also can used to attract public attention. Hence, we develop an e-commerce application to simplify production process of the logo, i.e. by two bridging gaps between companies with logo designers and by properly maintaining reasonable pricing or production cost. We use the waterfall and the UML tools, implemented in the Codeigniter framework, for developing the application. Because both of them are still considered as the most reliable tools in the object-oriented system development. There are also several tests conducted in this work to ensure that the application can work properly according to our design purposes.

Sistem Informasi Bimbingan Skripsi Menggunakan Metode Rapid Application Development Berbasis User Centered Design

Thesis is the result of a scientific research paper written and adapted to the scientific rules that apply in writing and the process of working on a thesis, usually students are guided by two supervisors. Because during the pandemic and the difficulty of consulting with supervisors and the establishment of health protocols to avoid the impact of the spread of the COVID-19 virus, the author intends to build a Thesis Guidance Information System application that can be accessed online and based on a website and facilitates the thesis implementation process. Features contained in the system include students who can submit ideas and thesis titles and can see notifications of ideas and thesis titles being rejected or not. Students who carry out theses can be ensured that they are supervised by their supervisors, therefore supervisors can guide their students using the application and can carry out online sessions and seminars. The thesis guidance information system is designed using the Model View Controller architecture which separates the user interface, data and control. This object-oriented system development model uses the Unified Modeling Language model which aims to analyze and model applications designed using Model View Controller-based architecture. The software development method used in the development of this system is Rapid Application Development because it has relatively simple features. The User Centered Design approach is that users in every stage of system development are also involved, so that the system formed can be used according to system needs.

Implementation Of SaaS Cloud Computing Services On E-Learning Applications (Case Study: PGRI Foundation School)

Learning activities in PGRI Foundation schools, especially in SMA PGRI Kudus still use the conventional model that is directly face to face, so it is necessary to develop online learning media or what is now often referred to as e-learning to help teachers and students take material and do assignments by online. With online learning, teachers are expected to be able to update learning material and students can access it without constraints on place and time, besides assignments to students can be well controlled. In general, all PGRI Foundation schools in Kudus district have the same business process as well as the information system and technology requirements. But in reality, each school develops its architecture and information system separately. On the other hand, the majority of schools do not have enough budget to procure infrastructure to support the information systems needed specifically for learning activities such as e-learning. Cloud computing is often referred to as a new paradigm in the world of information technology related to resource efficiency. Cloud Computing has a service layer known as Software as a Service (SaaS). SaaS has several advantages and conveniences offered, including those related to resource efficiency and speed in developing an application. With SaaS, an application can be used at the same time by many tenants, with each tenant still being protected, so that application development costs can be further reduced. This research uses object-oriented system development methods with UML tools. This research aims to help schools in the Kudus Regency PGRI foundation improve the quality of learning by utilizing e-learning media without the need to think about the process of procurement, installation and configuration of hardware or software.

Measuring Class Cohesion Using Internal and External Class Relationships

Class cohesion is a design quality that has a great impact on posterior development and maintenance of object-oriented systems. There have been much works on measuring class cohesion based on internal class relationships such as method-attribute referencing and internal method invocations. However, object-oriented systems involve many external class relationships carrying a functional context which should be also taken into account in measuring class cohesion. However, the existing works using internal relationships cannot measure cohesion of classes involving many external relationships. In this paper, we present a novel metric for measuring class cohesion based on both internal and external class relationships through an iterative process. We evaluate the metric by applying it to five applications — ArgoUML, jEdit, JHotDraw, JMeter, and Refactor, and validate the metric theoretically and statistically. The theoretical validation shows that the metric exhibits the required properties for cohesion metrics and the statistical validation shows that the metric captures a new aspect of class cohesion that has not been addressed by the existing works.

Empowering Self-Management through M-Health Applications

The advancement in mobile technology has led towards a new frontier of medical intervention that never been thought possible before. Through the development of MedsBox Reminder (MBR) application for Android as a pilot project of M-Health, health care information system for patient selfmanagement is made possible. The application acts as an assistant to remind users for their timely medicine intake by notifying them through their mobile phone. MedsBox Reminder application aims to facilitate in the self-management of patient's health where they can monitor and schedule their own medicine intake more efficiently. Development of the application is performed using Android Studio 1.4, Android SDK, MySQL database, SQLite, Java language and Netbeans IDE 8.1. Object-Oriented System Development (OOSD) methodology has been adapted to facilitate the development of the application.

Development of Integrated Information System for Travel Bureau Company

Related to the effectiveness of decision-making by the management of travel bureau company, especially by managers, information serves frequent delays or incomplete. Although already computer-assisted, the existing application-based is used only handle one particular activity only, not integrated. This research is intended to produce an integrated information system that handles the overall operational activities of the company. By applying the object-oriented system development approach, the system is built with Visual Basic. Net programming language and MySQL database package. The result is a system that consists of 4 (four) separated program packages, including Reservation System, AR System, AP System and Accounting System. Based on the output, we can conclude that this system is able to produce integrated information that related to the problem of reservation, operational and financial those produce up-to-date information in order to support operational activities and decisionmaking process by related parties.

Formal Specification and Verification of Few Combined Fragments of UML Sequence Diagram

UML has become a de-facto standard for design and development of object-oriented systems. On the other hand, UML includes various diagrams and notations which are missing of formal semantics. There does not exist much work to transform completely UML models to executable codes by any of the computer-aided software engineering tools because of the hidden semantics under the UML diagrams. Moreover, UML models cannot be used for automated analysis for validation and verification of the systems. Therefore, an integration of UML and semantics-based techniques such as formal methods is required to overcome such type of issues. Further, proof of correctness of software models plays a key role to ensure the quality of the final system to be developed. This paper presents a systematic method for transformation and verification of UML sequence diagrams into Z specification. The method works by translating and analysing few important combined fragments of sequence diagrams using Z notation. At first, formal specification of primary constructs is provided by capturing the hidden semantics under the diagram. Formal analysis of interaction operators namely options, alternatives, loops and break of the fragments is provided. The combined fragments are important because it allows multiple scenarios to increase an expressive power of sequence diagram by various control flows. Finally, formal analysis is provided by Z/Eves tool to check the syntax, type and proof for consistency and correctness of the specification.

The Relative Importance of Technical and Interpersonal Skills for New Information Systems Personnel

Computer personnel need a balance of both technical and interpersonal skills to develop information systems (ISs) that meet users' requirements. Organizations which recruit IS graduates were surveyed to better understand the necessary skills for new IS personnel, and the relative importance of those different skills.New IS graduates must have strong written and oral communication abilities. No single technical skill was rated above the interpersonal skills of writing and speaking. Additionally, new IS hires must be able to work in a crossfunctional group.New graduates should be proficient in client-server development, object-oriented programming techniques, third-generation languages, and systems development methodologies. Low-level languages, multimedia computing, desktop publishing, and experience with workgroup software received lower ratings than interpersonal skills and familiarity with contemporary development techniques. Because employers see the value of practical application of technical and inte...

Role of unified modelling language in software development in Greece – results from an exploratory study

The Unified Modelling Language (UML) is a language for specifying, visualising, constructing and documenting software systems. The UML proved to be extremely successful and it has achieved tremendous popularity making it the de facto industry standard for object oriented system development. As such, many researchers presented empirical studies on the practical usage of UML but as well criticisms for UML complexity, difficulty to be learnt, etc. Even though a large number of articles and books are devoted to various aspects of UML language, there is little evidence on how UML is used. This study attempts to identify the profile of persons using UML, to pinpoint UML diagrams that are being used and their effectiveness, to discover whether CASE tools are being used and to record the perceived usefulness of UML language. For conducting the study a survey was developed and it was distributed to mailing lists of Greek IT professionals and to university students. The findings indicate that UML is used successfully in the majority of software development projects and that most users perceive UML positively since it supports faster system building, development of higher quality software systems, and for specific cases, it leads to software development cost-decrease.

The Concept of Object and its Relation to Human Thinking: Some Misunderstandings Concerning the Connection between Object-Orientation and Human Thinking

All throughout the computer science community object-orientation is accepted as being built upon the same basic concepts that human beings use to apprehend reality. This misconcep- tion, as we think, is what we focus on in this paper. To show this we analyse two well-recognised object-oriented systems development methods. We try to pinpoint in what way these methods do not correspond to the way human beings apprehend reality in terms of objects. We show that the methods do not use the concepts of object or class in a manner that corresponds to the way hu- man beings use them to apprehend reality. Furthermore the method-creators do not separate the notion of an object and its representation in a model. We also suggest a better adaptation of the searching-for-objects model based on how human beings apprehend reality. When analysing, one should focus on the purpose of the actions and the two different modes with which an object can be treated: present-at-hand and readiness-to-hand. This will increase the conformity between object- orientation and the way human beings apprehend reality.

Study of Object Oriented Analysis and Design Approach

Problem statement: Object and component technologies, rapidly maturing branches of information technology, have been becoming pervasive elements of systems development, especially the recently popular Internet applications and thus leading to increased complexity and at the same time broader range of applications. Approach: This needs to be understood in order to maximize its benefits and applications with consistent results. However, mainstream Object Oriented Systems Development (OOSD), consisting of Object Oriented Analysis and Design (OOAD) and Object- Oriented Programming (OOP), has a history of difficulties and is still struggling to gain prevalent acceptance. Results: There have been number of studies and experiments conducted by experts and researchers in the past which provides a solid base to take up this study and look into various intricacies present. There have been several studies and focused efforts in this direction which laid down the basis for a segment of people to form the opinion as “technology adoption is mostly the result of marketing forces, not scientific evidence” whereas there have been another segment that believes that object technology is “still long on hype and short on results ...”. The gurus of OOSD continue to tout its vast superiority over conventional systems development, even to the extent of developing a unified software development process. Conclusion: The advocates of OOSD claim many advantages including easier modeling, increased code reuse, higher system quality and easier maintenance. It is well understood that analysis and design are extremely critical aspects of successful systems development especially in the case of OOSD. As the development of any successful information system must begin with a well-conceived and implemented analysis and design, this study will focus on the most recent empirical evidence on the pros and cons of OOAD.

WeedML: A Tool for Collaborative Weed Demographic Modeling

WeedML is a proposed standard to formulate models of weed demography (or perhaps even complex models in general) that are both transparent and straightforward to reuse as building blocks for new models. The paper describes the design and thoughts behind WeedML which relies on XML and object-oriented systems development. Proof-of-concept software is provided as open-source C++ code and executables that can be downloaded freely.

A Parsing Scheme for Finding the Design Pattern and Reducing the Development Cost of Reusable Object Oriented Software

Because of the importance of object oriented methodologies, the research in developing new measure for object oriented system development is getting increased focus. The most of the metrics need to find the interactions between the objects and modules for developing necessary metric and an influential software measure that is attracting the software developers, designers and researchers. In this paper a new interactions are defined for object oriented system. Using these interactions, a parser is developed to analyze the existing architecture of the software. Within the design model, it is necessary for design classes to collaborate with one another. However, collaboration should be kept to an acceptable minimum i.e. better designing practice will introduce low coupling. If a design model is highly coupled, the system is difficult to implement, to test and to maintain overtime. In case of enhancing software, we need to introduce or remove module and in that case coupling is the most important factor to be considered because unnecessary coupling may make the system unstable and may cause reduction in the system's performance. So coupling is thought to be a desirable goal in software construction, leading to better values for external software qualities such as maintainability, reusability and so on. To test this hypothesis, a good measure of class coupling is needed. In this paper, based on the developed tool called Design Analyzer we propose a methodology to reuse an existing system with the objective of enhancing an existing Object oriented system keeping the coupling as low as possible.

An Application Of The Rational Unified Process For Requirements Analysis

The Rational Unified Process® (RUP)[1] is an effective implementation technique for object oriented systems development. The RUP® approach allows for flexible process modification and a customization of artifacts to meet the needs of the particular situation. Marriott International developed a variation of this process as its standard for its SDLC. This process was implemented in the requirements analysis and design phases of a software project for the Ritz-Carlton subsidiary. A context-level treatment of the RUP® metamodel produced use cases and a supplementary specification that lead to the systems analysis model development by an external vendor. [1] Rational Unified Process®, Version 2003 Copyright © 1987 – 2003. Rational Software Corporation.

A semiotic analysis of unified modeling language graphical notations

Unified modeling language (UML) is the standard modeling language for object-oriented system development. Despite its status as a standard, UML has a fuzzy formal specification and a weak theoretic...

Trainee reactions and task performance: a study of open training in object-oriented systems development

In this study, we examine two trainee reactions: ease of learning and ease of use and their relationships with task performance in the context of object-oriented systems development. We conducted an experiment involving over 300 subjects. From that pool 72 trainees that met all of the criteria were selected for analysis in a carefully controlled study. We found that ease of learning was strongly correlated to task performance whereas ease of use was not. The finding was unexpected; ease of learning and ease of use are two overlapping concepts while their effects on task performance are very different. We offer a theoretical explanation to the paradoxical finding and its implications to the improvement of training evaluation.