User-defined visual query languages

Previous research in visual query languages has focused on pre-defined visual representations of data and queries, which are suitable for specific applications, but difficult to extend and generalize. We propose a meta-language to query an object-oriented database with user-defined pictures. By mani...

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Bibliographic Details
Published inProceedings of 1994 IEEE Symposium on Visual Languages pp. 224 - 231
Main Author Cruz, I.F.
Format Conference Proceeding
LanguageEnglish
Published IEEE Comput. Soc. Press 1994
Subjects
Application software
Computer science
Data visualization
Database languages
Displays
Layout
Object oriented databases
Object oriented modeling
Relational databases
Visual databases
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Summary:Previous research in visual query languages has focused on pre-defined visual representations of data and queries, which are suitable for specific applications, but difficult to extend and generalize. We propose a meta-language to query an object-oriented database with user-defined pictures. By manipulating these pictures, the user can extract information about the data in a purely visual fashion. The proposed meta-language is rule-based and uses a constraint visual language that allows for complex displays such as graphs, bar charts, pie charts, and plot charts to be specified. Our approach extends object-oriented concepts, such as inheritance and genericity to visual query languages. We provide examples that illustrate the expressiveness of the user-defined visual languages to display and query data.< >
ISBN:0818666609
9780818666605
DOI:10.1109/VL.1994.363614