Did you develop the schemes yourself?

Yes, I developed the diagrams myself. Usually, this included:

• Requirements analysis and business process analysis.
• Creating entity-relationship (ER) diagrams for the database.
• Designing architectural diagrams of systems or data flows.
• Using UML diagrams (e.g., class diagrams, sequence diagrams) for visualization.

For example, for a new module, I created an ER diagram to clearly define tables, relationships, and constraints, which helped the development and testing team better understand the data structure.