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#Redirect [[DataFlex]]
'''Visual DataFlex''' is a [[programming language]] by [http://www.dataaccess.com Data Access], targeted at creating [[database]] and client-server type programs. Visual DataFlex is intended to enable developers to quickly build highly-reliable corporate software solutions and commercial application products with [[Microsoft Windows]], web and [[web services]] interfaces. A Visual DataFlex installation includes visual design tools, a comprehensive [[class_(computer science)|class]] library, a [[compiler]] & [[debugger]], an embedded database, connectivity for leading [[DBMS]]s and a scalable Web Application Server.

== Architecture ==
Visual DataFlex has a 3-layer architecture:

;Bottom layer: Tables at this level represent customer information. Data dictionaries for each table define the rules for saving, editing, deleting, or finding a customer.

;Middle layer: Tables at this level represent orders to customers. A ''Data Dictionary Connectivity Object Tree'' defines how tables relate to each other, and ensures that all business rules of the connected tables are in force and validate.

;Top layer: A graphical interface ([[GUI]]) that allows users to enter, find, create, modify, or delete data.

==External links==
* http://www.visualdataflex.com

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[[Category:Domain-specific programming languages]]
[[Category:4GL]]

Latest revision as of 16:13, 19 March 2017

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