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    How would you define business logic and data access logic? Commented Aug 17, 2016 at 15:15
  • @AmyBarrett: Business Logic, Data Access Layer. Commented Aug 17, 2016 at 15:32
  • @RobertHarvey Thanks for the links. Is data access layer the same as data access logic? I ask as there doesn't seem to be much actual logic involved in the data access layer - just simple CRUD operations. Commented Aug 17, 2016 at 15:55
  • @AmyBarrett: Well, sometimes you write custom methods in the Data Access layer, so it's not always CRUD. Commented Aug 17, 2016 at 16:21
  • @RobertHarvey Wouldn't those custom methods belong in the business logic layer though? Commented Aug 17, 2016 at 16:39