Modeling views in the layered view model for XML using UML
In data engineering, view formalisms are used to provide flexibility to users and user applications by allowing them to extract and elaborate data from the stored data sources. Conversely, since the introduction of Extensible Markup Language (XML), it is fast emerging as the dominant standard for s...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Troubador Publishing Ltd
2006
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| Subjects: | |
| Online Access: | http://doc.utwente.nl/66983/1/889.pdf http://hdl.handle.net/20.500.11937/31446 |
| _version_ | 1848753383036420096 |
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| author | Chang, Elizabeth Rajugan, R. Dillon, Tharam S. Feng, L. |
| author_facet | Chang, Elizabeth Rajugan, R. Dillon, Tharam S. Feng, L. |
| author_sort | Chang, Elizabeth |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In data engineering, view formalisms are used to provide flexibility to users and user applications by allowing them to extract and elaborate data from the stored data sources. Conversely, since the introduction of Extensible Markup Language (XML), it is fast emerging as the dominant standard for storing, describing, and interchanging data among various web and heterogeneous data sources. In combination with XML Schema, XML provides rich facilities for defining and constraining user-defined data semantics and properties, a feature that is unique to XML. In this context, it is interesting to investigate traditional database features, such as view models and view design techniques for XML. However, traditional view formalisms are strongly coupled to the data language and its syntax, thus it proves to be a difficult task to support views in the case of semi-structured data models. Therefore, in this paper we propose a Layered View Model (LVM) for XML with conceptual and schemata extensions. Here our work is three-fold; first we propose an approach to separate the implementation and conceptual aspects of the views that provides a clear separation of concerns, thus, allowing analysis and design of views to be separated from their implementation. Secondly, we define representations to express and construct these views at the conceptual level. Thirdly, we define a view transformation methodology for XML views in the LVM, which carries out automated transformation to a view schema and a view query expression in an appropriate query language. Also, to validate and apply the LVM concepts, methods and transformations developed, we propose a view-driven application development framework with the flexibility to develop web and database applications for XML, at varying levels of abstraction. |
| first_indexed | 2025-11-14T08:23:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-31446 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:23:38Z |
| publishDate | 2006 |
| publisher | Troubador Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-314462017-02-27T15:15:12Z Modeling views in the layered view model for XML using UML Chang, Elizabeth Rajugan, R. Dillon, Tharam S. Feng, L. LVM OO conceptual models data modeling View formalisms schema views Layered View Model instance views conceptual views UML/OCL XML XML views In data engineering, view formalisms are used to provide flexibility to users and user applications by allowing them to extract and elaborate data from the stored data sources. Conversely, since the introduction of Extensible Markup Language (XML), it is fast emerging as the dominant standard for storing, describing, and interchanging data among various web and heterogeneous data sources. In combination with XML Schema, XML provides rich facilities for defining and constraining user-defined data semantics and properties, a feature that is unique to XML. In this context, it is interesting to investigate traditional database features, such as view models and view design techniques for XML. However, traditional view formalisms are strongly coupled to the data language and its syntax, thus it proves to be a difficult task to support views in the case of semi-structured data models. Therefore, in this paper we propose a Layered View Model (LVM) for XML with conceptual and schemata extensions. Here our work is three-fold; first we propose an approach to separate the implementation and conceptual aspects of the views that provides a clear separation of concerns, thus, allowing analysis and design of views to be separated from their implementation. Secondly, we define representations to express and construct these views at the conceptual level. Thirdly, we define a view transformation methodology for XML views in the LVM, which carries out automated transformation to a view schema and a view query expression in an appropriate query language. Also, to validate and apply the LVM concepts, methods and transformations developed, we propose a view-driven application development framework with the flexibility to develop web and database applications for XML, at varying levels of abstraction. 2006 Journal Article http://hdl.handle.net/20.500.11937/31446 http://doc.utwente.nl/66983/1/889.pdf Troubador Publishing Ltd fulltext |
| spellingShingle | LVM OO conceptual models data modeling View formalisms schema views Layered View Model instance views conceptual views UML/OCL XML XML views Chang, Elizabeth Rajugan, R. Dillon, Tharam S. Feng, L. Modeling views in the layered view model for XML using UML |
| title | Modeling views in the layered view model for XML using UML |
| title_full | Modeling views in the layered view model for XML using UML |
| title_fullStr | Modeling views in the layered view model for XML using UML |
| title_full_unstemmed | Modeling views in the layered view model for XML using UML |
| title_short | Modeling views in the layered view model for XML using UML |
| title_sort | modeling views in the layered view model for xml using uml |
| topic | LVM OO conceptual models data modeling View formalisms schema views Layered View Model instance views conceptual views UML/OCL XML XML views |
| url | http://doc.utwente.nl/66983/1/889.pdf http://hdl.handle.net/20.500.11937/31446 |