• KIPS Transactions on Software and Data Engineering
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• v.2 no.3
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• pp.151-160
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• 2013

iOS applications refer to the apps operating on iOS, a mobile OS developed by Apple. As iOS provides graphic user interfaces based on touch screens, most of iOS apps support GUIs. GUIs become increasingly important for iOS apps. So are GUI tests. As GUI functions are performed by event handlers, faulty event handlers could cause defects in GUIs. Hence, this study detects faults in event handlers as a way to test GUIs for iOS apps, and suggests how to generate test cases by re-defining input domains of event handlers.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.25 no.11B
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• pp.1948-1956
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• 2000

본 논문은 보드 레벨 테스팅 및 경계주사기법의 응용을 위한 테스트 버스 콘트롤러의 설계와 구현에 관해 다룬다. 테스트 버스 콘트롤러는 프로세서와 인터페이스를 통하여 IEEE 1149.1 테스트 버스를 제어하기 위한 칩이다. 최근 들어 IEEE 1149.1은 여러 분야에서 응용되어지고 있어서 다양한 응용분야에 적합한 테스트 버스 콘트롤러의 설계가 요구된다. 보드 레벨 테스팅을 위해서 SVF에 정의된 테스트를 수행할 수 있어야 하며, System-on-a-Chip (SoC) 설계 방식에서 내장되어지기 위해서는 작은 칩 크기와 높은 고장 검출률을 가져야 한다. 본 논문에서 구현된 칩은 기존의 테스트 장비에서 널리 쓰이는 SVF에 정의된 테스트를 모두 지원하며, 12k 게이트 정도의 크기를 가진다. 또한 독립적인 칩으로 쓰일 경우는 테스트 버스 콘트롤러가 버스 슬래이브로 쓰일 수 있으므로 IEEE 1149.1 테스트 회로를 가지도록 설계하였다.

• Journal of the Korea Computer Industry Society
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• v.2 no.9
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• pp.1199-1208
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• 2001

Program slicing is a program decomposition technique to improve the effectiveness of program testing and maintenance. In this paper I propose a method for slicing object-oriented programs and show its correctness. Also, I propose the class interface slicing technique which can eliminate irrelevant data members, subobjects, and methods from the class declaration parts of the given program. And I show its correctness. Finally, I propose the class hierarchy slicing technique which can compute the declarative parts affecting or affected by the given data member. These techniques may be used for information analysis in some area such as class testing.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.6
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• pp.547-558
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• 2008

Embedded system is tightly coupled with heterogeneous layers such as application, as kernel, device driver, HAL and hardware. Embedded system is customized for the specific purpose and hardware. In addition, the product cycle is so fast that software and hardware, which are developed by several vendors, are integrated together under unstable status. Therefore, there are lots of possibilities of faults in all layers. Because embedded software developers test their codes integrated with faulty layers, they cannot confirm 'whether testing of every aspects was completed, their code was failed, or integrated software/hardware has some problems'. In this paper, we propose an embedded software interface test method and a test tool called Justitia for detecting faults and tracing causes in the interface among heterogeneous layers. The proposed technique is an automated method which improves debugging upto professional testing using an emulator for helping developer.

• Journal of Internet Computing and Services
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• v.14 no.1
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• pp.31-39
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• 2013

Generally, there can be a interface discrepancy between the legacy hardware and the new software in combining new software component with reused hardware components in the embedded system. This kind of the interface discrepancy may cause various types of faults and also result in declining interface fault tolerance. In this paper we propose a method to improve interface fault tolerance. First of all, the new interface discrepancy fault type which has not been dealt with before is to be defined and next the testing method for generating test paths is proposed by considering the new defined interface discrepancy fault type in this paper. Several tests show that the proposed method detects more fatal faults about 7.9% in comparison with the existing testing method for commercial broadcasting receiver. Since the proposed method can provide software developers with test paths to be available earlier on the software development cycle, in addition, software developers can regard on interface discrepancy fault in advance. Consequently, more efficient test planning can be established to improve the interface fault tolerance.

• Annual Conference of KIPS
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• 2012.11a
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• pp.51-53
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• 2012

본 논문에서는 임베디드 소프트웨어 개발 시 .Net Micro Framework를 이용하여 디바이스들의 통신 인터페이스를 소프트웨어 개발자가 좀 더 간단하게 코딩 가능하게 하며 소프트웨어 개발자가 이를 디자이너를 이용하여 그래픽하게 에뮬레이터를 디자인할 수 있도록 임베디드 에뮬레이터 생성 방법을 제시하고 디자인 된 에뮬레이터를 기반으로 자동으로 코딩 없이 에뮬레이터를 생성하는 프로그램을 프로토타이핑 한다. 이때, 소프트웨어 개발자가 그래픽하게 생성한 에뮬레이터 디자인으로 하드웨어 개발자와의 의사소통이 보다 원활해질 수 있다. 또한 본 논문에서 제시하는 임베디드 에뮬레이터 생성 프로그램을 이용하면 추가적인 코딩 작업 없이 디자인 된 에뮬레이터를 기반으로 에뮬레이터가 자동 생성된다. 이로 인하여 .NET Micro Framework에서 제공하는 확장 가능 에뮬레이터와 달리 에뮬레이터를 생성하는데 시간과 노력을 절약할 수 있다. 또한 기존의 개발 과정에서는 기계가 모두 준비되어야 테스팅이 가능했던 것과 달리 기계 없이 에뮬레이터로 테스팅이 가능해짐으로써 개발 기간을 단축시킬 수 있다. 임베디드 에뮬레이터를 이용하면 하드웨어와의 통합 테스트에서 버그의 원인이 하드웨어적인 결함인지 소프트웨어적인 결함인지를 판단 가능하게 하여 디버깅이 용이하게 되며 실제 동작과 원하는 동작을 비교해 볼 수 있다.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.45 no.2
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• pp.140-149
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• 2008

Recently, the need for accessing information from anywhere at any time has been a driving force for a variety of mobile applications. As the number of mobile applications increases rapidly, there has been a growing demand for the use of Service Oriented Architectures(SOA) for various applications. Mobile based SOA offers a systematic way to classify and assess technical realizations of business processes. But mobile has severly restricted range of utilizing services in computing environment and more, a mobile computer is envisioned to be equipped with more powerful capabilities, including the storage of a small database, the capacity of data processing, a narrow user input and small size of display. This paper present mobile adaption method based on SOA to overcome mobile restriction. To improve mobile efficient we analyzing mobile application requirement writing service specification, optimizing design, providing extended use case specification which test use case testing and testing service test case which derived from service specification. We discuss an mobile application testing that uses a SOA as a model for deploying discovering, specifying, integrating, implementing, testing, and invoking services. Such a service use case specification and testing technique including some idea could help the mobile application to develop cost efficient and dependable mobile services.

• KSCI Review
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• v.2 no.2
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• pp.7-18
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• 1996

In this paper library is proposed to store and retrieve the software components, in addition to that designed and implemented the user interface for management and control of this library. Applying components to this library for version control, component's quantitative testing are processed. In the case of user selection of component's a high quantative rate components can be selected.

• Annual Conference of KIPS
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• 2002.04a
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• pp.473-476
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• 2002

웹 기반 소프트웨어 시스템은 다른 일반 소프트웨어와는 여러 가지 다른 특성을 가지고 있다. 컴포넌트가 다양하며 절차적인 요소 보다는 선언적인 마크업 언어라는 특성, 그리고 변경이 많다는 특성으로 테스트가 쉽지 않다. 이 논문에서는 웹 기반 소프트웨어의 사용자 인터페이스를 자동화할 수 있는 방안을 연구하였다. 마크업 언어로 표현된 웹 페이지에서 사용자 인터액션이 일어날 수 있는 요소들을 파악하여 이를 구동시킬 수 있는 테스트 스크립트를 작성할 수 방안을 제안하였다. 웹기반 프로그램은 동적인 요소가 많아지면서 사용자 인터페이스가 중요하며 이 연구에서 제안된 자동화 방법이 웹 사이트 테스트의 부담을 덜 수 있을 것으로 판단된다.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.47 no.6
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• pp.73-79
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• 2010

The number of electronic embedded software in vehicle system is ever increasing for years. As a result, the electronic control units have been growing dramatically, and it is required to mutual link between these units. Due to separate API each and every embedded platform, it is difficult to develop and integrate in automotive industry. The AUTOSAR project consists suppliers and manufacturers, and the partnership is a standardized platform to establish and develop an industry standard. On the previous works, we implemented the RTE generated module design based on AUTOSAR architecture. This paper specifically focuses on the testing of the development tool that generates RTE source code. The result satisfied a need for a RTE requirements and AUTOSAR methodology in a vehicle applications.