منابع مشابه
Fibrations and universal view updatability
Maintainability and modifiability of information system software can be enhanced by the provision of comprehensive support for views, since view support allows application programs to continue to operate unchanged when the underlying information system is modified. Supporting views depends upon a solution to the view update problem. This paper presents a new treatment of view updates for formal...
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The algebraic specification of information systems (including databases) has been advanced by the introduction of category theoretic sketches and in particular by the authors’ Sketch Data Model (SkDM). The SkDM led to a new treatment of view updating using universal properties already studied in category theory. We call the new treatment succinctly ”universal updating”. This paper outlines the ...
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ژورنال
عنوان ژورنال: Nature
سال: 2002
ISSN: 0028-0836,1476-4687
DOI: 10.1038/415119a