How to develop a new IMS DC Screen using PL/1, IMS DC, DB2?

ks38639 · New User Joined: 28 Dec 2006 Posts: 2 Location: Hyderabad

Hi,

I am new to IMS DC.
My application uses IMS DC, PL/1, DB2.

Can Some one guide me to develop a new IMS Screen using above languages.

I mean how to link these.

I just need one filed in the screen.

I have experiance in PL/1 and DB2. I just have idea of IMS DC. No experiance.

Thanks for your help.

Sandy Zimmer · Posted: Wed Sep 02, 2009 5:16 pm

You need MFS - Message Format Service. It is an assembler language. If you search the forum, you will find several topics.

ks38639 · New User Joined: 28 Dec 2006 Posts: 2 Location: Hyderabad

Thank you SandyZ.

So first i need to write MFS program to design the screen. then i need to link it to PL/1 DB2 program.

Sandy Zimmer · Posted: Thu Sep 03, 2009 9:27 am

Again......

Here is the concept involving DC - MFS - if you look at both of these links, you will learn.

www.sysed.com/DnLoads/QualityContents/IMSMFS/04a_402C01MFds.pdf

and

publib.boulder.ibm.com/infocenter/rbdhelp/v7r1m0/index.jsp?topic=/com.ibm.etools.egl.doc/topics/generation/gegl_xfer_ims_mfs_ref.html

vjai6977 · New User Joined: 08 Aug 2008 Posts: 19 Location: Chennai

Hi,

That was a good link to understand MFS and how message communication is done on IMS DC Online environment.

The following are required to invoke a IMS DC Online screen.
1) MFS – Message Format Service, this is coded using assembler language, this is all about defining
a. Screen layout
b. MID (Message Input Descriptor)
b. MOD (Message Output Descriptor)
A MFSGEN has to be done once the MFS is coded completely. At this point, before starting to develop the application program the screen layout that you had developed can be viewed on the IMS terminal using the command /FOR Screen_ModName
Screen_ModName is the name given for MOD definition on MFS

2) Application program may be (COBOL, PL/I) & database may be (DB2/IMS DB) should be developed to use the defined screen.

Regards,
Jai-Chennai

Sandy Zimmer · Posted: Mon Sep 07, 2009 5:12 pm

Thankyou, Jai. Did you see the post I put out this weekend -
"How IMS Components work together"? If not, take a look at that too.