Tell about your experience designing data models. Have you ever developed a data model from scratch?

In my experience designing data models, I have had to create models from scratch for new projects. The process usually involves the following steps:

1. Analyzing business requirements and understanding the domain.
2. Defining main entities and their attributes.
3. Establishing relationships between entities (one-to-one, one-to-many, many-to-many).
4. Normalizing data to eliminate redundancy.
5. Creating ER diagrams and coordinating with the team.

For example, for a warehouse management system, I developed a model that included entities such as "Product," "Supply," "Warehouse," and "User" with appropriate relationships and constraints. This ensured data integrity and facilitated future expansion of functionality.