Data Flow Diagram with Tables and Services

The diagram shows two independent systems, each comprising a service and its dedicated data table. On the left, a service interacts with a table holding columns like ID, CUSTOMER_ID, STATUS, and TOTAL. On the right, a 'CUSTOMER SERVICE' interacts solely with its own table, which includes ID and CREDIT_LIMIT. A clear red 'X' symbol indicates that the service on the left is prevented from directly accessing the 'CUSTOMER SERVICE' table. This visualizes a design principle where services maintain their own data ownership and avoid direct access to other services' underlying databases, promoting loose coupling and independent deployment.

data flow - microservices - service architecture - database - data ownership - encapsulation - system design - loose coupling - data access