• IEMEK Journal of Embedded Systems and Applications
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• v.2 no.3
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• pp.145-154
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• 2007

Dynamic update of kernel can change kernel functionality and fix bugs in runtime. Dynamic update is important because it leverages availability, reliability and flexibility of kernel. An instruction-granularity update technique has been used for dynamic update. However, it is difficult to apply update technique for a commodity operating system kernel because development and maintenance of update code must be performed with assembly language. To overcome this difficulty, we design the function-granularity dynamic update system which uses high-level language such as C language. The proposed update system makes the development and execution of update convenient by providing the development environment for update code which is same for kernel development. We implement this system for Linux and demonstrate an example of update for do_coredump() function which is reported it has a vulnerable point for security. The update was successfully executed.

• International journal of advanced smart convergence
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• v.6 no.4
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• pp.60-66
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• 2017

The advent of the 4th industrial revolution made the importance of software education to be emphasized, and thus, the Maker Education is attracting attention. This paper analyzes the curriculum to find contents suitable for Maker Education and proposes a workbook design using the results. The curriculum analysis data and workbook examples are expected to contribute to design elementary school curriculum for Maker Education using 3D printer. The workbook-based creative Making activities are, in addition, also expected to improve the computational thinking ability and to provide the insufficient instruction hours of SW education with an expandability.

• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1367-1370
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• 2003

This paper has been studied Design and Implementation Using the ICT(Information & Communication Technology) Education System on the Web. And then this paper has designed a teaching and learning model for Using the ICT Education System on the Web of management substance in commercial high school, verified and implemented them. After this study, this web-based multimedia data with voice instruction and humanity education data in student's module to develop the local natural environments is more helpful to occur the students' motivations and interests and get higher achievements of study than teach only with the textbook.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.06a
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• pp.203-206
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• 2005

This paper presents a design experience of supervisory control system for agile and intelligent manufacturing(AIM). For effectively program job instructions, a Petri net-type graphical language is proposed and it can be applied to a various task such as concurrency and synchronization. PGL is consisted of PGL editor, PGL analyzer and PGL translator; PGL editor generates a job instruction program using graphic symbol. PGL analyzer prevents a deadlock or resource allocation of unit cell. PGL translator transfers to adequate sequential job commands of each unit cell.

• Journal of the Korea Computer Industry Society
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• v.5 no.9
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• pp.947-958
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• 2004

In this paper, various platforms are designed, where instructors and students can communicate each other to educate, ask and answer the questions interactivel under the WEB 3-based remote real-time instrurtions. The proposed system maximizes involvements among the students, instrurtors and administrators, which facilitate the understanding and progressive developments of the lessons and tasks to be performed. In the proposed education system, the instructors work as overseers for the study and the students benefit from comparative learning and pattern design. Also, the advantages of WBI are maximized, and the common factors among the mutual components are extracted and reused to avoid the confusion for the students. The advantages of the components are maximized and applied to the proposed system.

• Journal of Computing Science and Engineering
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• v.8 no.1
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• pp.34-42
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• 2014

Time-predictability of computing is critical for hard real-time and safety-critical systems. However, currently there is no metric available to quantitatively evaluate time-predictability, a feature crucial to the design of time-predictable processors. This paper first proposes the concept of architectural time-predictability, which separates the time variation due to hardware architectural/microarchitectural design from that due to software. We then propose the standard deviation of clock cycles per instruction (CPI), a new metric, to measure architectural time-predictability. Our experiments confirm that the standard deviation of CPI is an effective metric to evaluate and compare architectural time-predictability for different processors.

• Korean Institute of Interior Design Journal
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• no.3
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• pp.58-63
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• 1994

As following four steps, we can make a development about Model-Curriculum of Interior Architecture by an approach of occupational cluster in a College. Step. 1.Selecting of an occupational cluster in which students want to get a job. Step 2. Abstracting and analyzing about occupation , job and task of occupational cluster. Step.3. Selecting of courses by the systematization of occupation, job and task. Step.4. Selecting the goals of instruction in Interior Architecture. Through the above steps, the change of occupation has been promoted among occupational cluster by the development of curriculum based on the planning of Interior Architecture which has the widest range of job and task.

• Journal of Korea Multimedia Society
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• v.6 no.4
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• pp.658-667
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• 2003

Developing tailor made Multimedia courseware ensuring effective implementation of instruction strategies is a challenge that manifests in myriad problems of software design and coding. In this paper an attempt has been made to analyse and identify coding and implementation problems, in the backdrop of using two different multimedia software development tools i.e. Visual Basic and Toolbook, which underpin the development and effectiveness of use of multimedia courseware. Solutions to such problems have been discussed in context of Tool book. The examples presented in this paper are based on the experience of designing and implementation of two large scale professional quality Multimedia courseware development projects.

• Journal of the Korea Computer Industry Society
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• v.9 no.4
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• pp.177-182
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• 2008

Due to the computer developments and the expansion of data communications, many changes are done to educational environments in addition to the changes of the various social areas. In this paper, a learning system is developed, which adapts itself by checking the changing factors of the learner. The educator works as a overall project manager in this project learning system and the learner benefits from the user-oriented comparative study and pattern design performed in the domains of the internet and intranet.

• Journal of the Korean Institute of Telematics and Electronics B
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• v.32B no.1
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• pp.21-29
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• 1995

In this paper, a independent and structured microassembler was designed for easily changing the system design, and for designing various microarchitecture. When the designer's hardware and microprogramming process were made concurrently, it is needed to easily change or improve the instruction set and executable code format. But this type of developed environment requires a high const and a large software system. A proposed microassembler was designed so the designer directly defines the microinstruction set and format to be executed. And we implemented a module from each part of the software, so it is now possible to use practically and upgrade the function of each part, First, the symbol was separated from the assembler. And then microinstruction was copied into it. The microinstruction format was designed using the defined language that was designed for free microinstruction. This was implemented in an IBM-PC by using the C-language, FLEX,and BISON.