Browsing by Author "Yang, JT"

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Constructing a toolset for software maintenance with OOAG
(1998)
Hu, CH
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Yang, JT
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Wang, FJ
;
Chu, WC
;
資訊工程學系
This paper presents a model called object-oriented attribute grammar (OOAG) that can be used to construct a toolset for software maintenance. The kernel of OOAG consists of two inter-related parts: a model-view-shape (MVS) application framework and an AG++, an object-oriented extension to traditional AGs. By combining compositional and generative techniques seamlessly, OOAG preserves both advantages introduced by respective OO and AG models, such as rapid prototyping, reusability, extensibility, and incrementality. So far, a toolset prototype consisting of a number of programming and maintenance tools were implemented using OOAG on the Windows environment. The editors developed can be used to construct programs by specifying the associated flow information in explicit (visual) or implicit (textual) ways, while the (incremental) maintenance tools, such as DU/UD tools and a program slicer, can help analyze incomplete program fragments to locate and inform the user of useful information.
Constructing an object-oriented architecture for Web application testing
(2002-01-01)
Yang, JT
;
Huang, JL
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Wang, FJ
;
Chu, WC
;
資訊工程學系
The variety of existing web application frameworks has lead to the development of a wide range of Web applications for both the Internet and intranets. Web applications are constructed based on various frameworks ranging from simple HTML-based forms to complicated distributed-object computations based on Java and CORBA. Web software enables programmers to choose a proper framework for their own Web applications. The prevalence of Web-based applications has also led to the need to adapt software testing frameworks and tools for them, This study presents a software testing architecture that integrates several common but enhanced testing tools as a sub-architecture to fit a common Web application framework. The architecture reuses several software patterns and architectures from traditional testing environments. A Web application testing environment prototype is also constructed to demonstrate the feasibility of the proposed architecture.
Constructing flow-based tools with generative and compositional techniques
(2000-04-01)
Yang, JT
;
Wang, FJ
;
Chu, WC
;
Hu, CH
;
資訊科學與工程研究所
In this paper, a model called object-oriented attribute grammar (OOAG), which combines both compositional and generative techniques, is presented to effectively construct flow-based tools that deal with fine-grained language semantics as well as a mass of graphics-drawing activities. OOAG, which consists of two interrelated parts: a model-view-shape (MVS) class framework and an AG++, an object-oriented extension to traditional AGs, is intended to preserve both advantages introduced by respective OO and AG models, such as rapid prototyping, reusability, extensibility, incrementality, and applicability. So far, a flow-based editor associated with two flow-analyzer prototypes, DU/UD tools and a program slicer, have been implemented using OOAG on the Windows environment. Our flow-based editor can be used to construct programs by specifying the associated flow information in a visual way, while (incremental) flow analyzers incorporated into the editor can help analyze incomplete program fragments to locate and inform the user of possible errors or anomalies during programming.