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Screen scrapers

 
Francesco Marchioni
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Hi all!
While reading through exam papers I can see mentioned sometimes
Screen scrapers.If I understand correctly they're like terminal emulators
which can be used to integrate with other systems like mainframes.

Can anybody make a real-life example ?

I can think of a Telnet client is actually a Screen Scraper.....do
I guess it right ?
Thanks a lot
Francesco
 
T Ram
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Screen Scrappers is a way of Legacy Connectvity.... thu.. Userinterface .
This will read the data from the legacy screens and give the object interface for the legacy system.
 
Poornima Shankar
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Screen scraper is a terminal emulator at legasy systems.
Typacal task is to interface between GUI /CUI at one end and legacy system at the other end. They process response from the legacy system to suit the display interface
 
Francesco Marchioni
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Thanks for your answers!
Francesco
 
Santosh Pasupuleti
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Francesco,

Screen scraping runs scripted client software which interacts with legacy green screen applications e.g. CICS 3270 terminal apps, and (through the scripting) can return data to a host component. The host component can make the data available to non-legacy apps through ODBC, JDBC, etc.

The Screen scraper program has to fool the host into thinking it is talking to one of its usual hardware terminals with an operator sitting at it. It must compose queries in the format the usual hardware would produce, and interpret the formatted data coming back, parsing it to extract the data and leave behind the formatting.

Essentially, a screen scraper has to read the green screen (the mainframe screen)'s CUI and translate into an object interface.

Screenscraping also refers to extracting information from web pages on the web. But, for the SCEA exam Screen scraping refers to translating the Mainframe (more or less) screens into an Object interface.

Regards
Santosh
 
Bobby Sh
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Hi,

Is there any document,on the net,which talks about how Screen Scraping works.


Regards
Rajnish
 
mark antony
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Santhosh,
Excellent answer. Thanks.
 
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