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3. Dynamic transposition
Dynamic transposition consists in matching the processes defined on the objects with the data in the database. The efficiency of data access depends heavily on the choices made during static transposition.
In the context of a 3-tier architecture (separation of presentation, processing and data), dynamic transposition takes place according to the figure 9 .
The dynamic transposition process is divided into :
Data access services in the "Data" layer. These services manage the addition, deletion, modification or selection of data on storage structures, notably via the notion of DML (Data Manipulation Language), which includes INSERT, DELETE, UPDATE...
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Bibliography
- (1) - MILLER (J.), MUKERJI (J.) - MDA guide version 1.0.1. - Juin 2003 http://www.omg.org/cgi-bin/doc?omg/03-06-01 .
- (2) - MULLER (P.-A.), GAERTNER (N.) -...
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