# rishabh-rajput-rr/employeemanagementsystem2.0 architecture
> Architecture diagram of the GitHub repository rishabh-rajput-rr/employeemanagementsystem2.0, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-12). It is an AI-made overview: check details against the source.
- Interactive diagram: https://gitdiagram.com/rishabh-rajput-rr/employeemanagementsystem2.0
- Repository: https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0
## Overview
This is a Java console Employee Management System with an additional multithreading teaching menu. The main workflow is console input, authentication, employee operations with validation and in-memory master data, then display or reporting; a concurrent employee service is a separate implementation. The source index and excerpts support these boundaries, but the README is empty and portions of the application flow are omitted, so links not evidenced by the available material are left out.
Main entry points: [`EMS_Console_App/src/com/technova/ems/EMSApplication.java`](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/EMSApplication.java) (Application flow), [`EMS_Console_App/src/com/technova/ems/service/EmployeeService.java`](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/EmployeeService.java) (Employee service), [`EMS_Console_App/src/com/technova/ems/service/ReportService.java`](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/ReportService.java) (Report service), [`EMS_Console_App/src/com/technova/ems/model/Employee.java`](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/model/Employee.java) (Employee record)
## Diagram (Mermaid)
```mermaid
flowchart TD
subgraph group_console["Console application"]
node_application["Application flow"]
node_authentication["Authentication"]
node_user["User model
[User.java]"]
end
subgraph group_employee["Employee management"]
node_validation["Input validation"]
node_employees["Employee service"]
node_employee_model["Employee record
[Employee.java]"]
node_master_data["Master data
[MasterData.java]"]
node_exceptions["Employee exceptions"]
end
subgraph group_reporting["Reports"]
node_reports["Report service
[ReportService.java]"]
end
subgraph group_threads["Concurrency"]
node_concurrent_service["Concurrent employee service"]
node_id_generator["Employee ID generator"]
node_thread_menu["Multithreading menu"]
node_thread_demos["Thread demonstrations"]
node_report_tasks["Employee report tasks"]
end
node_operator(("Console user"))
node_operator -->|"uses"| node_application
node_application -->|"authenticates"| node_authentication
node_application -->|"manages"| node_employees
node_application -->|"dispatches reports"| node_reports
node_application -->|"validates input"| node_validation
node_authentication -->|"matches credentials"| node_user
node_employees -->|"creates and manages"| node_employee_model
node_employees -->|"looks up types"| node_master_data
node_employee_model -->|"formats labels"| node_master_data
node_employees -->|"throws"| node_exceptions
node_reports -->|"reads employees"| node_employees
node_reports -->|"reads labels"| node_master_data
node_concurrent_service -->|"generates IDs"| node_id_generator
node_concurrent_service -->|"creates records"| node_employee_model
node_thread_menu -->|"dispatches demos"| node_thread_demos
click node_application "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/EMSApplication.java"
click node_authentication "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/AuthenticationService.java"
click node_user "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/model/User.java"
click node_validation "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/util/ValidationUtil.java"
click node_employees "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/EmployeeService.java"
click node_employee_model "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/model/Employee.java"
click node_master_data "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/util/MasterData.java"
click node_exceptions "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/tree/main/EMS_Console_App/src/com/technova/ems/exception"
click node_reports "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/ReportService.java"
click node_concurrent_service "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/multithreading/service/ConcurrentEmployeeService.java"
click node_id_generator "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/multithreading/util/EmployeeIdGenerator.java"
click node_thread_menu "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/multithreading/MultithreadingMenu.java"
click node_thread_demos "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/tree/main/EMS_Console_App/src/com/technova/ems/multithreading/demo"
click node_report_tasks "https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/tree/main/EMS_Console_App/src/com/technova/ems/multithreading/task"
classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_application,node_authentication,node_user,node_operator toneBlue
class node_validation,node_employees,node_employee_model,node_master_data,node_exceptions toneAmber
class node_reports toneMint
class node_concurrent_service,node_id_generator,node_thread_menu,node_thread_demos,node_report_tasks toneRose
```
## Components
### Console application
- [Application flow](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/EMSApplication.java): `EMS_Console_App/src/com/technova/ems/EMSApplication.java`
- [Authentication](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/AuthenticationService.java): `EMS_Console_App/src/com/technova/ems/service/AuthenticationService.java`
- [User model](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/model/User.java): `EMS_Console_App/src/com/technova/ems/model/User.java`
### Employee management
- [Input validation](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/util/ValidationUtil.java): `EMS_Console_App/src/com/technova/ems/util/ValidationUtil.java`
- [Employee service](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/EmployeeService.java): `EMS_Console_App/src/com/technova/ems/service/EmployeeService.java`
- [Employee record](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/model/Employee.java): `EMS_Console_App/src/com/technova/ems/model/Employee.java`
- [Master data](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/util/MasterData.java): `EMS_Console_App/src/com/technova/ems/util/MasterData.java`
- [Employee exceptions](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/tree/main/EMS_Console_App/src/com/technova/ems/exception): `EMS_Console_App/src/com/technova/ems/exception`
### Reports
- [Report service](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/service/ReportService.java): `EMS_Console_App/src/com/technova/ems/service/ReportService.java`
### Concurrency
- [Concurrent employee service](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/multithreading/service/ConcurrentEmployeeService.java): `EMS_Console_App/src/com/technova/ems/multithreading/service/ConcurrentEmployeeService.java`
- [Employee ID generator](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/multithreading/util/EmployeeIdGenerator.java): `EMS_Console_App/src/com/technova/ems/multithreading/util/EmployeeIdGenerator.java`
- [Multithreading menu](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/blob/main/EMS_Console_App/src/com/technova/ems/multithreading/MultithreadingMenu.java): `EMS_Console_App/src/com/technova/ems/multithreading/MultithreadingMenu.java`
- [Thread demonstrations](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/tree/main/EMS_Console_App/src/com/technova/ems/multithreading/demo): `EMS_Console_App/src/com/technova/ems/multithreading/demo`
- [Employee report tasks](https://github.com/rishabh-rajput-rr/employeemanagementsystem2.0/tree/main/EMS_Console_App/src/com/technova/ems/multithreading/task): `EMS_Console_App/src/com/technova/ems/multithreading/task`
### Other components
- **Console user**
## Connections
- Console user → Application flow: uses (evidence: `EMS_Console_App/src/com/technova/ems/EMSApplication.java`)
- Application flow → Authentication: authenticates (evidence: `EMS_Console_App/src/com/technova/ems/EMSApplication.java`)
- Application flow → Employee service: manages (evidence: `EMS_Console_App/src/com/technova/ems/EMSApplication.java`)
- Application flow → Report service: dispatches reports (evidence: `EMS_Console_App/src/com/technova/ems/EMSApplication.java`)
- Application flow → Input validation: validates input (evidence: `EMS_Console_App/src/com/technova/ems/EMSApplication.java`)
- Authentication → User model: matches credentials (evidence: `EMS_Console_App/src/com/technova/ems/service/AuthenticationService.java`)
- Employee service → Employee record: creates and manages (evidence: `EMS_Console_App/src/com/technova/ems/service/EmployeeService.java`)
- Employee service → Master data: looks up types (evidence: `EMS_Console_App/src/com/technova/ems/service/EmployeeService.java`)
- Employee record → Master data: formats labels (evidence: `EMS_Console_App/src/com/technova/ems/model/Employee.java`)
- Employee service → Employee exceptions: throws (evidence: `EMS_Console_App/src/com/technova/ems/service/EmployeeService.java`)
- Report service → Employee service: reads employees (evidence: `EMS_Console_App/src/com/technova/ems/service/ReportService.java`)
- Report service → Master data: reads labels (evidence: `EMS_Console_App/src/com/technova/ems/service/ReportService.java`)
- Concurrent employee service → Employee ID generator: generates IDs (evidence: `EMS_Console_App/src/com/technova/ems/multithreading/service/ConcurrentEmployeeService.java`)
- Concurrent employee service → Employee record: creates records (evidence: `EMS_Console_App/src/com/technova/ems/multithreading/service/ConcurrentEmployeeService.java`)
- Multithreading menu → Thread demonstrations: dispatches demos (evidence: `EMS_Console_App/src/com/technova/ems/multithreading/MultithreadingMenu.java`)