Visual DataFlex

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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.

1 Home Page
2 Architecture
3 External links
4 Regional Users Group In Northeastern USA
5 USA Instruction in Visual DataFlex

[edit] Home Page

http://www.VisualDataFlex.Com : For a full explanation and free 30 day Studio Eval Download or the free to use Personal Edition.

Visual DataFlex is a "transparent" front end tool, being able to interface with most backend types including the included free embedded DataFlex tables, MS-SQL, IBM-DB2, and Oracle, etc.

[edit] 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.