title: Read model for aggregate in DDD CQRS ES
body: <p>In CQRS + ES and DDD, is it a good thing to have small read model in aggregate to get data from other aggregate or bounded context? </p>
  
  <p>For example, in order validation (In Order aggregate), there is a business rules which validate order only if customer is not flagged. The flag information is put in read model (specific to the aggregate) via synchronous domain events.</p>
  
  <p>What do you think about this ?</p>