Access to Legacy Applications and Legacy Databases

There are a number of ways to provide access to legacy system applications.

• One is to incorporate a terminal emulator in the form of a Java applet as one of the client interfaces provided by the application server and actually allow the end user to interact with the legacy system.

• Another is to provide a screen scraper that allows the data portion of a legacy screen to be scraped out and placed in a dynamic HTML form or a Java applet.

• A more common way is to place a CORBA wrapper around the legacy system and provide a new CORBA (Java or C++) client for the user to interface with the application through.