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VS Cobol II to Enterprise Cobol Conversion

 
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JAYANT KUMAR SAHOO

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Joined: 15 Mar 2006
Posts: 14

PostPosted: Thu Sep 21, 2006 9:20 am    Post subject: VS Cobol II to Enterprise Cobol Conversion
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Hi All,
I have been given to analyse the migration startegies for a large mainframe application currently under VS cobolII to enterprise cobol.
The application has both online (CICS) and batch (VSAM).
I have no idea how to start with it??
I would like to ask the techies what shoud be my initial investigation for any application to convert it from cobol II to enterprise cobol.
what are the key points to start with??

Could anybody provide any help??


Thanks!
Jay.
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dipanshu

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Joined: 16 Jan 2006
Posts: 53
Location: pune

PostPosted: Thu Sep 21, 2006 10:28 am    Post subject:
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Hi,

U just need to compile old cobol program with enterprise cobol compiler and fix the errors shown by compiler.

Note:- Don't forget to take backup of old load modules b4 going to create new or alternatively its better to change the name of new load module.
so that if any error comes, u can easily rollback.

Regards,
Dipanshu G
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Satish N V Godavarthi

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Joined: 23 Feb 2006
Posts: 10
Location: US

PostPosted: Thu Sep 21, 2006 11:37 am    Post subject:
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hi JAYANT,

I was into conversion project till last month where we converted more than 9000 VS cobol as well as OS/VS cobol to enterprise cobol(Batch and online).
I myself have converted and tested 300 of them.

For cobol II(online and batch), its was plain compile and unit test stratergy. To be short, we just compiled the cobol II with enterprise version using version control tool. If at all any compile errors and code changes are to me made, we fixed them and test(unit) it as well.
But for OS/VS it was different strategy again.

If have further questions let me know.....

Thanks,
Satish GNV
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JAYANT KUMAR SAHOO

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Joined: 15 Mar 2006
Posts: 14

PostPosted: Thu Sep 21, 2006 7:12 pm    Post subject: Re: VS Cobol II to Enterprise Cobol Conversion
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Satish /Dipansu and all
Anybody has an enterprise cobol compiler so that I can use it for test purpose??and what are the compiler option i need to change if i will use the new compiler.
May be my company will comeup with any version control tool as satish mentioned but as of now if i want to test some of the programs then what should i do??
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mmwife

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Joined: 30 May 2003
Posts: 1592

PostPosted: Sat Sep 23, 2006 8:47 pm    Post subject: Re: VS Cobol II to Enterprise Cobol Conversion
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Hi Jay,

In addition to the previous advice I add "READ!!!".

Go to IBM's site and check out their eCOBOL manuals. There will be a selection of conversion manuals for you.

Generally speaking, if the number of intermediate versions between the old COBOL and the new is small, most if not all of the differences will be new functions. These won't concern you since your goal will be functional equivilance.

But reading the convesion guides is always a good idea.

HTH
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