7 by 24 world-wide

• Complexity of the problem.

  • Feed from sites world-wide.
  • 24 hours a day, 7 days a week.

• Types of transactions

  • Update old, triggers change to new.
  • Update new, triggers change to old.
  • Old system needs to ask new system to solve business problem (the kicker).

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Notes:

Both sides were fed by humans, which was a good thing, or the solution would have been different. IMS feed was not up to moving hundreds of thousands of batch records per day...

Although I didn't know it yet, the return transaction feed was VERY important to the users in the field... which means response time was important. Up-front documents stated response time was not an issue. A slight oversight on the part of an unknown person

Speaking of oversights...