Enterprise patterns

Enterprise patterns referring more to the general architecture/design

• Idempotency

  • applying the same action multiple times will have the same result

  • eg: adding/subtracting is not idempotent; setting a value to X is idempotent

• Event sourcing

  • capture every event in an event object, and store this in order in a log (audit log, time-series data store)

  • can recreate the state by re-running all events

• CQRS (Command Query Responsibility Segregation)

  • can use a different model to update information than the model you use to read information

  • one data store for command, and one for query

• Broker/ Messaging bus

• Microservices

• Multi-tier architecture ( 3-tier or n-tier)

• MVC/MVP

• Hexagonal architecture