TechSolutions Inc. Entity Relationship Diagram (ERD) Overview

Create a detailed Entity Relationship Diagram (ERD) for TechSolutions Inc. Include the following entities along with their attributes and relationships: 1. Client Entity with attributes ClientID, Name, ContactNumber, Email, Address and a One-to-Many relationship with the Project entity. 2. Project Entity with attributes ProjectID, Name, Description, StartDate, EndDate, Status, ClientID and relationships as described. 3. Employee Entity with attributes EmployeeID, Name, Role, DepartmentID, SkillID and relationships as described. 4. Contract Entity with attributes ContractID, ClientID, StartDate, EndDate, Amount and a Many-to-One relationship with the Client entity. 5. Invoice Entity with attributes InvoiceID, ProjectID, Date, Amount and a Many-to-One relationship with the Project entity. 6. Service Entity with attributes ServiceID, Name, Description, Rate. 7. Payment Entity with attributes PaymentID, InvoiceID, Date, Amount and a Many-to-One relationship with the Invoice entity. 8. Document Entity with attributes DocumentID, Name, Description, Content. 9. Skill Entity with attributes SkillID, Name, Description and a Many-to-Many relationship with the Employee entity. 10. Department Entity with attributes DepartmentID, Name, Description and a One-to-Many relationship with the Employee entity.