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CICS - Conversationl Programming Practical example

 
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pranav08

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Joined: 05 Sep 2010
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PostPosted: Tue Nov 16, 2010 3:50 pm    Post subject: CICS - Conversationl Programming Practical example
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Hi,

Would there be any practical scenario where conversational programming must be used and pseudo conversational programming can't satisfy the requirement?

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Pranav
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Garry Carroll

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PostPosted: Tue Nov 16, 2010 4:00 pm    Post subject:
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Any situation where there is no direct human interface to the CICS application.

Garry.
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pranav08

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PostPosted: Tue Nov 16, 2010 4:12 pm    Post subject:
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Garry Carroll wrote:
Any situation where there is no direct human interface to the CICS application.

Garry.


Gary, sorry I did not understand. If there is no human interface, between whom the conversation is going on? Any practical application where you have seen it's usage?

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Pranav
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Bill O'Boyle

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Joined: 14 Jan 2008
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PostPosted: Tue Nov 16, 2010 4:29 pm    Post subject: Reply to: CICS - Conversationl Programming Practical example
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IBM transaction CECI and Compuware transaction XPED are two examples of Conversational Transactions.

Bill
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Garry Carroll

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PostPosted: Tue Nov 16, 2010 4:34 pm    Post subject:
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Its not that there's a conversation going on. The technique is conversational.

In conversational programming, all storage allocated to a process is allocated from start to end. In pseudo-conversational, the process is made up of several sub-processes, for each of which storage is allocated. Storage in each part of a pseudo conversation is freed when that part of the process ends. Thus memory can be freed during the operators' 'think-time'.

Where, say, a message from a front-end system is received (maybe over WebsphereMQ), the message can be processed in its entirety without need for allowing for operator 'think-time'. This would be handled by a conversational application.

GaRRy.
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Robert Sample

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PostPosted: Tue Nov 16, 2010 5:43 pm    Post subject:
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LU6.2 (APPC) communications occur in a conversation -- the two systems exchange data until they've finished in a single transaction.
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