Visual DataFlex: Difference between revisions

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Visual DataFlex is a programming language by 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 library, a compiler & debugger, an embedded database, connectivity for leading DBMSs 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

This software article is a stub. You can help Wikipedia by expanding it.

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 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.
+;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.
+;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.
+;Top layer: A graphical interface ([[GUI]]) that allows users to enter, find, create, modify, or delete data.
 ==External links==
 * http://www.visualdataflex.com
-* http://www.dataaccess.com
-* [http://www.mertechdata.com/ Mertech Data Systems - ISDBC - ISAM to SQL Database Connectivity Drivers] website
-* http://www.disd.ws - Dataflex International Software Developers
-* http://www.nedataflex.com - Northeast DataFlex Users Group: Instruction/Codevelopment/Programming Services
-* http://www.SonataSoftware.US - Instruction And CoDevelopment For New Users via Internet
-* http://www.vdf-guidance.com
-* http://www.SonataSoftware.biz
-*[http://resheim.no/vdf (Visual) DataFlex Tools] for [[Eclipse_(software)|Eclipse]] website
-* http://www.visualdataflex.ru
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