Screen scraping is programming that translates between
legacy application programs (written to communicate with now generally
obsolete input/output devices and user interfaces) and new user interfaces
so that the logic and data associated with the legacy programs can continue
to be used. Screen scraping is sometimes called advanced terminal emulation.
A program that does screen scraping must take the data coming from the
legacy program that is formatted for the screen of an older type of terminal
such as an IBM 3270 display or a Digital Equipment Corporation VT100 and
reformat it for a Windows 98 user or someone using a Web browser. The
program must also reformat user input from the newer user interfaces (such
as a Windows graphical user interface or a Web browser) so that the request
can be handled by the legacy application as if it came from the user of
the older device and user interface.
|
