Clean Architecture ER diagram organizing a document management system across four distinct layers: Presentation, Application, Domain, and Infrastructure. The Presentation Layer contains eDoc, DVC, and Admin modules with controllers and views; the Application Layer defines Commands, Queries, Handlers, DTOs, and Validators; the Domain Layer models Document, User, DVCRecord, and AuditLog entities with domain services and repository interfaces; the Infrastructure Layer implements EF Core repositories, SQL Server persistence, Redis caching, and Serilog logging. This architecture enforces separation of concerns and dependency inversion, enabling testability, maintainability, and scalability for complex document verification workflows. Fork and customize this diagram on Diagrams.so to adapt it for your own domain models or add additional layers like external API integrations.