This SQL ER Diagram Template is widely used for analyzing and fine-tuning relational databases, which are frequently used in business processes. Entity Relationship Diagrams can aid in understanding how databases can be restructured to allow faster and easier data retrieval. This list of Entity Relationship Diagram applications is by no means exhaustive. Database diagrams are also used in reengineering business processes, education, data analysis, and research. ER Diagrams are also useful for locating and resolving logic and deployment issues. Diagrams depict the structure of a database and aid in understanding what and where things go wrong. ERD improves business processes by identifying redundancies and bottlenecks within organizations.