• The Journal of the Korea Contents Association
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• v.12 no.11
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• pp.39-48
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• 2012

It is well known that software testing amounts for a significant portion of software development cost. In order to reduce the cost of software testing. a lot of researches on automated test data generation have been performed. Sophisticated tools for performing symbolic execution or solving a system of path constraints are required to support automated test data generation. Developing or purchasing those tools leads to another factor of increasing the cost involving software testing. In this paper, we propose a dynamic test data generation approach that does not depend on symbolic execution or constraint solving at all. The proposed approach extends Korel's path-oriented method to satisfy the branch coverage criterion effectively. We conducted an experiment to evaluate the effectiveness of the proposed technique with a triangle classification program to show that branch coverage can be easily achieved.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.411-417
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• 2013

Enterprises utilize software development strategically within digital convergence of information technology. Software development direction of IT takes advantage of new technology through integration of across-the-board data and business process standardization and integration. But, software development environment of enterprises which globalization is accelerated gradually is doing cost-cutting effort with controls and administration about various reform activity. Nevertheless, have not normalized in customer's requirement according to project, there is visual point that excessive software development integration work and administration are necessary according as connection is not harmonious with new system. Therefore, in this study, to construct these real-time integration environment, do to propose database implementation that have productivity by deent,ing N-Tiers platform for building enterprise framework with development productivity presentation, middle(business) and data(EIS) tier that take advantage of MVC design pattern.

• Journal of the Korean Society for Precision Engineering
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• v.22 no.3 s.168
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• pp.101-106
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• 2005

It needs to accumulate a store of know-how on the design, precision processing and appraisement for metering pump which is a kind of gear pump fer synthetic fibers. But the period and cost fur development is not effective, because designers experience many trial and error for the pump design and manufacturing process. Therefore, in order to curtail the period and cut down expenses, the analysis and simulation system is required for a designed metering pump. In this study, the pump simulation software was developed with the visual C++ language and the image processing algorithm, and was investigated through a discharge test for the planetary gear type metering pump.

• Journal of the Korean Operations Research and Management Science Society
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• v.24 no.4
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• pp.141-156
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• 1999

Recently expanded and enhanced software system inevitably demands serious managerial considerations on its maintenance cost. This study proposes a systematic and thorough assessment model for software development methods to the end of maintainability, incorporation ISO 9126 quality standards-based criteria. The Analytic Network Process (ANP) is employed in our model to find the effect of any dependency among the items of the criteria and the alternative methods. This study then applies the model empirically in order to evaluate the efficacies of the Structured Method and the Objected-Oriented Method. At first, this study performs the test on the existence and direction of any dependency under the three types of assumptions, and then determines the relative dominance of the two methods.

• Journal of Korea Society of Digital Industry and Information Management
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• v.10 no.1
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• pp.7-15
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• 2014

The accuracy of global navigation satellite system(GNSS) positioning has been studied during the last decades. Early GPS software was developed as monolithic tool in which all functions packed in the same software. But, these GPS software have the problems of the high cost of constructing system. close system architecture and the reusability. And there is a lack of interoperability between them because most of them have their own unique data format according to their application fields. In this paper, we have introduced requirements for design and specifications based on business process for the GPS system. commonly used to extract components from the requirements of the GPS business-based development process is presented. These components extracted by the process can be used to assemble components only. In particular, applications for developers to add features specific case without affecting the other components that can be modify the component.

• Current Industrial and Technological Trends in Aerospace
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• v.7 no.2
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• pp.40-47
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• 2009

In this paper, current industrial trend of simulator development which is widely spreaded and performed in globally is introduced. Usage of satellite simulator is becoming an essential choice since the complexity of satellite and mission is being continuously increased. Satellite simulation brings reduction of satellite development cost and of period which is consumed by test on satellite development for various phases. Further more, it can be used to reduce the development period of satellite since developed resource and knowledge is possible to be delivered to next program effectively.

• Journal of KIISE:Software and Applications
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• v.33 no.8
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• pp.655-667
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• 2006

This paper proposes a method for counting function point using goal and scenario based requirements. Function Point is a software sizing method and widely used as a basis to estimate software development cost. Requirements elicitation and analysis should be performed before function point analysis but function point analysis method doesn't deal with requirements elicitation and analysis. For that reason, Function point extraction method from existing requirements method is needed and if the requirements method has advantage for traceability and elicitation, it is suitable for managing cost. Goal and scenario method is widely used as requirements elicitation and analysis. It has also good traceability. Therefore, this paper discusses a method for extracting function point from requirements text gathered using the goal and scenario based requirements elicitation technique. The proposed method aims to establish and maintain traceability between function point and requirements text. Text based function point extraction guidance rules have been developed. The proposed methodology has been applied to Order Processing System development.

• The KIPS Transactions:PartD
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• v.10D no.5
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• pp.763-772
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• 2003

Design patterns are known widely by the techniques to improve software qualify. The design patterns are efficient solutions for problems occurring frequently in software development. Recently there are wide researches for design patterns to find them and to verify usability for them. But there are very few researches to define systematic development approaches about constructing application using design patterns. In this paper, we propose an approach for the pattern-oriented software development process using incremental composition for design patterns. For this proposal, first we define a development process using design patterns, propose technique for incremental composition for design patterns and view ports for software in the process. Also we deal with the problem of efficient traceability and maintenance to design patterns in the software system. And we use a feedback framework system as an illustrative example to show how the process can be used to develop the pattern-oriented software. In the development of software, the systematic development approach and usage increase efficiency to develop the system by using design experience and technique early in the development lifecycle. Therefore the system will assure the high stability and reusability and offer the low cost and time for development.

• Journal of the Korea Society of Computer and Information
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• v.26 no.11
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• pp.101-110
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• 2021

The Weapon Control Software performs the function of supporting weapon operation within the Naval Combat System in connection with the Weapon System. As Weapon Control Software depends on an Weapon System, it has the characteristic that software modification is unavoidable with the change in Interface information. Modification of software causes an increase in development costs since it must take verification step such as software reliability test. In this paper, We design the standard architecture of weapon control software to minimize the modification elements of existing weapon control software. For Interface information management, Feature Model were applied to make a division between common factor and variable factor. In addition, Strategy Pattern were applied to improve the software design. Software evaluation test results show that new architecture provides better modifiability and reuse than existing software as well as the cost of development decrease.

• Journal of Digital Convergence
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• v.10 no.1
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• pp.357-364
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• 2012

For the resistance of the closed intellectual property license from the Free Software Movement. It's free and also can adapt have been widely used. Software for the resistance of the closed intellectual property rights have been promoted by the free software movement. Implementation of the proposed changes in the license that anyone can freely use the software and adapt open source software is widely used. The product of open source software can reduce development time and cost. Many people who use it will improve, verification and developed. However, indiscriminate use of these advantages, as well as the risk of dispute is high. This study is analyzed open source software dispute cases for piracy protection and will show duly open source software available to users by user environment.