Concepts in FIX practice

1. the most important concept here is, FIX talks to IMR, and IMR talks to DBL. There're mappings between each layer.

(a) from FIX to IMR, we're basically talking about Group/Customer/Trader/Account/Broker etc

2. the FIX connectivity issues - see my other posts related to FIX

3. security search -> dup trades detection -> trades filter (trader/customer/broker/group/account mapping) -> price convert -> add trades -> calc charge based on broker -> ensureNotify_sp(?) -> update last processed trade ID

4. security search - based on what rules?

(a) securityType - tag 167

5. dup trades detection - we first check if there's an orderID (broker assigned one, unique for a single trading session) in the database already; if yes, we then go ahead, and check if there's an execID there in the database. If yes, that's great - we caught a dup trade!

6. cancel order?

7. name service - mapping name to IOR?

8. what's IOS?