Integration Questions list

- Which direction is the sync going from ?
 - SF > other system ?
  - is that system accessible via the internet ?
  - does it support OAuth2 ?
  - does it support TLS1.2 ?
  - Does it have a REST or SOAP API ?
 - other system > SF?
  - can it leverage standard SF APIs ?
  - does it support OAuth2 ?
  - does it support TLS1.2 ?  
 - both ?
  - all of the above, plus:
   - do the synced tables overlap ?
   - if yes, which system is the master ?
   - how should conflicts be resolved ?
- When is data synced ?
 - on record change ?
 - on user action ?
 - at set time ?
 - a combination of the above ?
- What is the amount of data to be synced, in number of records, per table ?
 - If > 1mil yearly:
  - should we archive old records ?
   - where ?
  - should we delete old records ?
  - are BigObjects a possibility ?
  - can we look into having an external data warehouse where we have the data and SF only pulls what is needed ?
- is there a 1/1 correlation between tables in SF and backend, or should we do a custom mapping between tables ?
- are there limits in he other system we need to be mindful of ?