In this post we are going to discuss about the following things.
- Who are the CICS USERS
- Backend processing of CICS
- Differences Showing BATCH & ONLINE
- ONLINE Availability
- They are the Business users to who update the data or browse the data from the database.
- Data entry operators who create a transactions.
Backend of CICS
- Data that is used in the batch system is from online or from another batch system.
- Most of the CICS transactions are inquiry, which are used to browse the data in the VSAM file or DB2 tables.
- Differences Showing BATCH & ONLINE.
- Almost every application will have both online and batch systems.
- To reduce the burden on online most of the processing is done in the batch side where as minimal validations are done in the online.
- Most of the non money related updates are done online immediately & accurately.
- If the transactions are money related a minimal validations are done in the online and main processing is done in batch.
ONLINE Availability:
- Most of the online system are up in the morning 6.00 AM and down in the evening by 5 PM just before the batch jobs execute.
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