• Journal of Information Technology Services
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• v.5 no.3
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• pp.99-108
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• 2006

Public institutions are considering adoption of open-source software in the process of information projects. However, there doesn't exist reliable information about an adoption process for open-source software. Performance and stability problems of this software also persist, as a result, current open-source software is not widely used. As a software market and industry grows, Benchmark test has been performed more often than before in order to help customers understand and select the most appropriate product among myriad similar ones. It is certain that more objective and trustful data evidence should be obtained by way of utilizing the procedures and methods of Benchmark Test in decision making process for selecting an open-source software. For this research, Benchmark test was applied as a way of demonstrating performance verification of an open-source software in the public institutions. It is certain that more objective and trustful data evidence should be obtained by way of utilizing the procedures and methods of Benchmark Test in decision making process for selecting an open-source software. It also introduces a case study of a information system, which selected and implemented open-source software, in order to confirm the validity of this research. This research will serve as a guideline to adopt open-source software in governments as well as public institutions.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.15 no.3
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• pp.932-951
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• 2021

The effectiveness of testing in Model-based Testing (MBT) for Software Product Line (SPL) can be achieved by considering fault detection in test case. The lack of fault consideration caused test case in test suite to be listed randomly. Test Case Prioritization (TCP) is one of regression techniques that is adaptively capable to detect faults as early as possible by reordering test cases based on fault detection rate. However, there is a lack of studies that measured faults in MBT for SPL. This paper proposes a Test Case Prioritization (TCP) approach based on dissimilarity and string based distance called Last Minimal for Local Maximal Distance (LM-LMD) with Dice-Jaro-Winkler Dissimilarity. LM-LMD with Dice-Jaro-Winkler Dissimilarity adopts Local Maximum Distance as the prioritization algorithm and Dice-Jaro-Winkler similarity measure to evaluate distance among test cases. This work is based on the test case generated from statechart in Software Product Line (SPL) domain context. Our results are promising as LM-LMD with Dice-Jaro-Winkler Dissimilarity outperformed the original Local Maximum Distance, Global Maximum Distance and Enhanced All-yes Configuration algorithm in terms of Average Fault Detection Rate (APFD) and average prioritization time.

• Journal of Korean Society for Quality Management
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• v.29 no.4
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• pp.92-102
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• 2001

Software testing during development and operation should exercise to obtain the desired software quality and leave failure data set. So far, many software reliability models are classified and can be used to measure a software reliability only based on its failure history But, in practice, developers or testers of software systems must decide which existing software reliability model can be fitted. In this paper, we will show that an appropriate reliability model can be selected by considering relations between characteristics of each testing environment and models' assumptions. Several methods of software testing are presented and discussed. Also, unit test, integrated test, function test and system test that are sequentially exercised during development will be introduced.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.97-106
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• 2020

The purpose of this study is to determine how to apply ISO/IEC/IEEE 29119 software test procedures and ISO/IEC 25023 software test evaluation items to software-accredited testing laboratories based on the ISO/IEC 17025 international standard requirements. As a method, the overall requirements for their application to a test laboratory were analyzed by mapping ISO/IEC/IEEE 29119 and ISO/IEC 25023 based on ISO/IEC 17025. According to the mapping analysis, a total of 29 documents were created, including quality manuals, procedures, and test guidelines for the operation of the test laboratory. As a result of the study, a test laboratory management system was developed using Confluence 6.15 software by applying the analyzed results of the overall requirements. The test procedures, documents, and records were stored in, and operated from, this system. Verification of suitability for operation of the test laboratory was conducted by KOLAS evaluators through a document review and an on-site audit at the LG Electronics SW Accredited Test Laboratory in Seoul. In conclusion, it was confirmed through the KOLAS evaluation that the test laboratory management system and the operation of the test laboratory are appropriate and, compared with previous cases, the test laboratory operates effectively, and the overall schedule of accreditation could be shortened.

• Journal of Internet Computing and Services
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• v.20 no.6
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• pp.37-46
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• 2019

A test plan is a high level document detailing objectives, processes, schedules and so on for verifying a developed software. And a test strategy, a component of a test plan, is about how to test software products to guarantee its quality and find bugs in the software in advance. Therefore, establishing effective and suitable test strategies is important for elaborating test processes. However, these tasks are difficult for project managers who write a test plan if they were not trained well in software test processes. And mis-designed test strategies will also mislead entire testing behaviors that testers would do. As a result, there would be a low quality software product in the end. To solve this problem, we propose a new test strategy reuse technique in this paper. By utilizing test plans of already completed software development projects, we lead test planer to reuse suitable and effective test strategies which were used in previous projects. To do so, we evaluate existing test strategies by utilizing ISO/IEC 25010 quality model for evaluating the suitability of test strategies and also use effectiveness metrics for test strategies. And from these evaluations, we predict completeness of new test plan that is written by reused test strategies. It can help the project manager to write an appropriate test plan for the quality characteristics which are selected as objectives for testing and software product. We show the possibility of our approach by implementing a prototype into the existing framework in a case study.

• Journal of Astronomy and Space Sciences
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• v.25 no.3
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• pp.321-328
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• 2008

Software Test Bench should be simulated with maximum quality to real execution environment in order to verify the performance of software which is changed or newly developed. And especially faults detection and recovery are crucial function of the performance test environment. Simulated Software Test Bench based on processor emulator is attractive and can be available prior to hardware Software Test Bench if real time performance aspect is ignored. In this paper, the results of conceptual study for developing the simulated Software Test Bench are presented.

• Journal of the Korea Society of Computer and Information
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• v.14 no.1
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• pp.17-24
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• 2009

According to increasing requirments in embedded systems, embedded software has been more complicated then before, a software developer is required to test her/his software to make a efficient embedded system software in both time and space. This paper suggests a testing tool with which a software developer can easily test the embedded system software in cross-development environments. The suggested tool is designed based on host/target architecture, to provide an intuitive test environment in which a test case can be executed in a target board. The tool uses an XML-based test script to generate an appropriate test case. It includes a tree-based test script editor with which a developer can easily make a test case. Therefore, with the suggested tool, a develop can put down a burden on an software testing and get more productivity in software development related on embedded system.

• Journal of the military operations research society of Korea
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• v.33 no.2
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• pp.49-60
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• 2007

Recently, the application area of an embedded software become larger and larger rapidly due to the development of the wire and wireless communication, the expansion of the digital information device and the convergence of the digital devices and emphasize the effort of the development of more complete software. As a consequence, the importance of the software test process was raised to discover the defects of the software early and improve the quality of an embedded software. However there was no test process model for applying the embedded software which is required the highly precision and the real-time process. In this paper, therefore, we propose the design procedure and case study for the test maturity model of an embedded software(Emb-TMM) which reflects the characteristics of the embedded software and test process. for this, we suggest the three category of the proposed procedure which consists of the selection of the reference model and the derivation of the area, the categorization of the area level, and design model. Then we suggest the case study how the proposed procedure can be applied to the development of an embedded software actually.

• The KIPS Transactions:PartD
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• v.17D no.2
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• pp.147-156
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• 2010

Conformance testing for embedded software is to check whether software was correctly implemented according to software specification or not. In conformance testing, test scenarios must be extracted to cover every test cases of software. In a general way, test scenarios simply focus on testing all functions at least one time. But, test scenarios are necessary to consider efficiency of test execution. In this paper, we propose a test scenario extraction method by considering function's execution time and waiting time for user interaction. A test model is a graph model which is generated from state machine diagram and test cases in software specification. The test model is augmented by describing test execution time and user interaction information. Based on the test model, test scenarios are extracted by a modified Dijkstra's algorithm. Our test scenario approach can reduce testing time and improve test automation.

• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.190-193
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• 2006

Ther are many stages of the development for the embedded systems' hardware and software as well, which results in many test stages of it with respect to corresponding development stages. The software validation of embedded systems is taken into consideration for the testers to make sure that the systems work correctly after the deployment. Among test stages, especially control logic level testing and system validation testing are considered as the most important test, because the robustness of embedded systems' software can be validated by those two level of tests. in this paper, we would like to introduce the idea of how software test system for embedded systems can be established and of what necessary components are needed