Database Schema Overview

graph TB
    subgraph "Multi-Tenancy"
        T[Tenant] --> O[Organization]
        T --> U[User]
    end

    subgraph "HR"
        O --> E[Employee]
        E --> TL[TimeLog]
        E --> TS[Timesheet]
        E --> EX[Expense]
    end

    subgraph "Project Management"
        O --> P[Project]
        P --> TK[Task]
        TK --> TL
    end

    subgraph "CRM"
        O --> C[Contact]
        O --> PL[Pipeline]
        PL --> D[Deal]
    end

    subgraph "Accounting"
        O --> I[Invoice]
        O --> PM[Payment]
        O --> EX
    end