Which data organization model most effectively supports business operations?

The relational data model is most suitable for effectively supporting business operations. It is based on tables with clearly defined relationships between them (through keys), which ensures:

• Data integrity (for example, through integrity constraints and transactions).
• Flexibility of queries using SQL.
• Scalability and optimization for business logic.

The relational model is well-suited for systems where accuracy, consistency, and complex data relationships are important, such as in banking systems, CRM, ERP.

Unlike other models (for example, hierarchical or network), the relational model is easier to understand and maintain, which accelerates the development and support of business applications.