Re-engineering defines a broad spectrum of manual and semi-automated application transformation techniques. Tools and middleware are used to effect repeatable and reliable changes to code, databases and user interfaces.

For example:

• database schema conversions and database content migration
• conversion of old code to Java and C#
• conversion of 4GL languages Java and C#
• conversion of legacy screens to HTML or new graphical user interface

Advantages

• Provides greater control over the degree of change, and thus improves cost and risk management
• Allows selective modernization of existing application, database, platform or skills