• Journal of the Korea Institute of Information and Communication Engineering
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• v.3 no.3
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• pp.587-595
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• 1999

The fundamental reason why inheritance anomaly occurs is that for a concurrent object, when synchronization code is not properly separated from the method code, the extension of code to produce a derived class may force the change of both the synchronization code and the method code in the super class, and inheritance is integrated inheritance in a simple and satisfactory way within a concurrent object-oriented language. The main emphasis on how to avoid or minimize inheritance anomaly. Therefore, in this paper we propose a new model, object model, and will minimizes the problem of inheritance anomaly found in concurrent object-oriented programming languages using Behavior Equation.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.299-300
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• 2015

본 연구에서는 명지전문대학에서 시행되고 다양한 학습지원 프로그램을 프로그래밍 언어 수업에 적용하여 운영하였던 사례를 제시하고 학습자 의견 및 만족도를 조사하였다. 학습지원 프로그램의 참여는 자발적으로 이루졌으며, 분석 결과 전반적으로 학습자들은 학습지원 프로그램에 대해 만족하는 것으로 나타났고, 참여 학습자 그룹의 성적이 비참여 학습자 그룹보다 좋은 것으로 나타나 학습지원 프로그램이 학습에 도움이 됨을 알 수 있었다. 또한 참여 프로그램에 따라 학습자들의 참여 목적과 참여를 통해 얻은 좋은 점은 다른 것으로 나타났고 비참여 학습자들의 참여하지 않은 이유가 프로그램 운영 환경과 관련이 있는 것으로 나타나 학습지원 프로그램의 효과적인 활용을 위해서는 학습자의 학습 목적에 따라 참여 프로그램을 제안할 필요가 있음을 알 수 있었다.

• Smart Media Journal
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• v.5 no.3
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• pp.88-92
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• 2016

This paper proposes a method of forecasting the computer technology development direction. Most computer technology researches in Korea are developed from hot research issues. This approach to take research topics mostly produces less valuable results. In order to choose more valuable research topics, researchers should company with the technology development trends. This paper proposes a way to forecast the computer technologies on the way to the future. It analyzes the development history of programming languages, and forecasts future directions as extensions of the history.

• Journal of Korea Multimedia Society
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• v.7 no.6
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• pp.851-857
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• 2004

Server-side scripting languages for web applications have a different environment from general programming languages. The reason is that some data in web applications should be transferred to a distinct file of a page or should be maintained for a physical time, that is for session time. SO JSP has four kinds of new scopes such as page, request, session, application. And every identifiers in JSP are classified and processed as one of the four scopes. This seems unavoidable to a scripting language because of the web environment. So when a JSP page using these new scope concepts is interpreted the procedure would be different from that of the general programming language's scopes. This thesis has studied the processing of the scopes which are considered in interpreting a script language code. This processing method of the scopes in this article can be applied not only to JSP interpreting but also to a data processing of similar ranges in web.

• Journal of The Korean Association of Information Education
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• v.25 no.6
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• pp.987-994
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• 2021

Computational Thinking is an analytical thinking ability that is necessary for everyone and everywhere. The existing Computational Thinking development education provided in Practical textbooks leads to block-based programming languages from unplugged activities. Many unplugged activities focus on practicing sequential order, which may lack the learning of abstractions or automation concepts. In block-based programming languages, concepts such as coordinate planes, which are not introduced in elementary school curriculum, appear, making students feel burdened by the block-based programming language itself. In this study, a curriculum was designed for elementary student's computational thinking through game-based programming language education. The results and their effectiveness were analyzed through the beaver challenge. As a result of analyzing the pre-test and post-test scores, it was confirmed that students' computational thinking skills improved.

• Journal of Korea Multimedia Society
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• v.23 no.9
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• pp.1191-1200
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• 2020

In this paper, we proposed DEVS based programming education model that based on the cognitive information processing theory, not a grammatical programming education, and studied effectiveness analysis using computer thinking patterns. By creating a small range of patterns in the grammar which underlies the programming language and solving various examples through combinations, this paper shows an education method to develop problem-solving skills based on algorithmic thinking. The purpose of this study is to facilitate non-majors learn programming languages and understand patterned program structures when writing programs by patterning of control statements which the most important in learning programming.

• International journal of advanced smart convergence
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• v.5 no.2
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• pp.8-17
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• 2016

Scratch-based programming has come to be known as an effective programming tool because of its graphic instruction modules, which are designed to be assembled like the famous LEGO building blocks. These building block-like structures allow users to more easily program applications without using other more difficult programming languages such as C or Java, which are text-based. Therefore, it poses a good opportunity for application in educational settings, especially in primary schools. This paper presents an effective approach to developing an educational robot for use in elementary schools. Furthermore, we present the method for scratch programming based on the external modules need for the implementation of robot motion. Lastly, we design a systematic curriculum, titled "Play with a Robot," and propose guidelines to using the educational programming language Scratch.

• Journal of Korea Society of Digital Industry and Information Management
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• v.12 no.4
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• pp.13-24
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• 2016

Defense Acquisition Program Administration's weapon system software development and management guideline specifies the criteria of software reliability tests including static and dynamic tests mainly on C/C++ languages. Recently, Defense Acquisition Program Administration expanded the scope of software reliability test for the various languages including C#, java etc. but specific criteria for them are not established. This study suggests the reliability test procedures and standards on C# programming software in weapon system. For the static test, considering the nature of the C# which depends on .NET framework, this paper introduces applying coding rules recommended by Microsoft Corp. Visual Studio 2012. Block coverage provided by Visual Studio is applied on dynamic tests and the achievement objectives for block coverage according to the software levels(A, B, C) are suggested. Also, the software reliability test procedures and standards proposed by this paper are properly verified through the case study. The result of this study can be used for establishing the specific criteria of the software reliability test for C# programming software in weapon system.

• The Journal of Korean Association of Computer Education
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• v.10 no.4
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• pp.1-16
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• 2007

The effect of existing programming education has shown a limitation coming from its methodology. Thus, the researcher developed a Web-based robot programming support system and explored its possibility for overcoming problems in existing programming education and ultimately for enhancing creativity and problem-solving abilities of students. The developed system let students learn robot programming just with a PC or PDA connected to the Internet without additional hardware and software. Different types of robots linked with a server computer can be controlled by using different programming languages. It is possible to use Korean keywords for programming as well. Specially, this system was evaluated positively by the groups whose computer abilities are excellent and student of introductory or intermediate level programming course. Furthermore, the programming education that uses robot and the Hangul programming technology were given very positive reception by elementary school students.

• Journal of Korea Multimedia Society
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• v.8 no.12
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• pp.1658-1668
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• 2005

This paper presents the bytecode-to-SIL translator which enables the execution of the java program in EVM(Embedded Virtual Machine) environment without JVM(java Virtual Machine), translating bytecodes produced by compiling java programs into SIL(Standard Intermediate Language) codes. EVM, what we are now developing, is a virtual machine solution that can download and execute dynamic application programs written in sequential languages like C language as well as object oriented languages such as C#, Java, etc. EVM is a virtual machine mounted on embedded systems such as mobile device, set-top box, or digital TV, and converts the application program into SIL, an assembly language symbolic form, and execute it. SIL is a virtual machine code for embedded systems, based on the analysis of existing virtual machine codes such as bytecode, MSIL, etc. SIL has such features as to accommodate various programming languages, and in particularly has an operation code set to accept both object-oriented languages and sequential languages. After compiling, a program written in java language is converted to bytecode, and also executed by JVM platform but not in other platform such as .NET, EVM platform. For this reason, we designed and implemented the bytecode-to-SIL translator system for programs written in java language to be executed in the EVM platform without JVM. This work improves the execution speed of programs, enhances the productivity, and provides an environment for programmers to execute application programs at various platforms.