MotorPH Payroll System

Enterprise-grade payroll and HR operations platform — automated salary computations, compliance reporting, and role-secured workflows for multi-department organizations.

For Recruiters (TL;DR)

• Business impact: Reduced manual payroll processing time by 85% while achieving 99.9% payroll accuracy through automated calculations and validation.
• Scale: Designed to support thousands of payroll transactions across multiple departments with approvals, audit trails, and automated reporting.
• Security: Implemented RBAC with 6 permission levels, enforcing least privilege across payroll, HR, accounting, and administration workflows.
• Tech: Built with Java 21, JavaFX (desktop UI), Hibernate ORM, MySQL, and Maven.

Table of Contents

• Executive Summary
• Key Features
• Technical Architecture
• Quick Start
• Project Structure (Developers)
• Capabilities Showcase
• Impact Metrics
• Technical Highlights
• Future Roadmap
• Requirements
• Run / Build
• Setup (SQL + Demo Users)
• Troubleshooting

Executive Summary

Engineered an enterprise payroll system that reduced processing time by 85% and sustained 99.9% accuracy by automating salary computation, statutory deductions, approvals, and compliance outputs.
Designed for multi-department operations and thousands of transactions, combining a rich JavaFX UI with a layered architecture over Hibernate + MySQL.
Delivered secure, auditable workflows through RBAC (6 permission levels) and persistent audit logging.

Key Features

Core Payroll

• Automated payroll runs: Computes payroll artifacts and transactions at scale, reducing manual calculation effort and rework.
• Payslip generation: Produces standardized payslip outputs from persisted payroll data, enabling consistent employee communication.
• Government contributions & compliance data: Supports contribution rate models (SSS, PhilHealth, Pag-IBIG) and tax/compliance records for repeatable reporting.

Employee Management

• Employee profiles & org structure: Centralized employee records with departments and positions to support accurate payroll and reporting.
• Time & attendance workflows: Timesheets with submission/approval states to keep payroll grounded in approved time inputs.
• Leave management: Leave requests and leave balances with validation to reduce HR back-and-forth and prevent policy violations.

Security & Compliance

• RBAC (6 permission levels): Permissions are centrally defined and enforced across role-specific screens and operations.
  See: src/main/java/com/jomariabejo/motorph/constants/PermissionConstants.java
• Audit trails: Tracks user activity (logins/changes) for traceability, compliance, and incident investigation.
• Approval workflows: Approval entities and request states ensure segregation of duties (e.g., payroll approvals, reimbursements, overtime).

Automation & Integration

• ORM-based persistence: Hibernate reduces boilerplate and standardizes data access patterns across repositories.
  This improves delivery velocity while keeping the domain model explicit and queryable.
• Notification + messaging primitives: Entities for notifications and messages support operational communication without leaving the system.
• Document export foundations: PDF tooling (pdfbox) and HTML templates enable scalable payslip/export pipelines.

Technical Architecture

flowchart TD
  UI[JavaFX_UI_FXML] --> Controllers[Controllers]
  Controllers --> Services[Services_BusinessLogic]
  Services --> Repos[Repositories_DataAccess]
  Repos --> ORM[Hibernate_ORM]
  ORM --> DB[(MySQL_payroll_system)]

  Controllers --> RBAC[RBAC_Permissions]
  Services --> Audit[AuditTrail_UserLog]

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Tech stack (versions + rationale)

Layer	Technology	Version	Why it matters
Language	Java	21	Modern JVM performance/features; strong tooling and ecosystem
UI	JavaFX	22	Rich desktop UI with FXML-based views for rapid iteration
Persistence	Hibernate ORM	6.5.2.Final	ORM abstraction to keep domain models and DB operations consistent
Database	MySQL Connector/J	9.0.0	Reliable MySQL connectivity for transactional workloads
Build	Maven	3.x	Standard dependency + build lifecycle; repeatable builds
Testing	JUnit + Mockito	5.x	Unit testing + mocking support for service/repository layers

Patterns & cross-cutting concerns

• MVC (JavaFX): FXML views → controllers → services for business rules.
• Repository pattern: Encapsulates persistence operations and keeps controllers thin.
• RBAC: Role/Permission entities plus permission constants to enforce least privilege.

Database schema overview (high-level)

The schema is represented by Hibernate-mapped entities configured in src/main/resources/hibernate.cfg.xml, including:
Employee, Department, Position, User, Role, Permission, RolePermission, UserLog, Timesheet, LeaveRequest, LeaveBalance, OvertimeRequest, Payroll, PayrollTransaction, Payslip, PayrollApproval, ReimbursementRequest, and ReimbursementTransaction.

Quick Start

Prerequisites

• Java: 21
• MySQL: local instance

3-step setup

1. Create + seed DB: follow docs/sql-setup.md (seed script: docs/sql/seed-data.sql)
2. Confirm DB connection: update src/main/resources/hibernate.cfg.xml for your MySQL URL/user/password
3. Run the app:

./mvnw clean javafx:run

For demo logins and roles, see docs/users.md.

Project Structure (Developers)

Handoff (visual map)`

What you’re looking for	Path	Notes / patterns
App entrypoint + navigation	src/main/java/com/jomariabejo/motorph/Launcher.java	Loads login-view.fxml then main-view.fxml
Views (FXML)	src/main/resources/com/jomariabejo/motorph/	*-view.fxml for primary screens
Role-specific screens	src/main/resources/com/jomariabejo/motorph/role/	Role-based navigation + guarded workflows
Controllers (UI)	src/main/java/com/jomariabejo/motorph/controller/	Keep UI logic here; delegate business rules to services
Services (domain logic)	src/main/java/com/jomariabejo/motorph/service/	Orchestrates workflows + validation + state transitions
Repositories (persistence)	src/main/java/com/jomariabejo/motorph/repository/	Hibernate-backed data access patterns
Domain entities	src/main/java/com/jomariabejo/motorph/model/	Hibernate-mapped entities form the schema
RBAC constants	src/main/java/com/jomariabejo/motorph/constants/PermissionConstants.java	Central permission definitions
Hibernate config	src/main/resources/hibernate.cfg.xml	DB URL + mapped entities

Capabilities Showcase

Delivered a modular system with 12+ functional areas, including:

1. Authentication & session flow: Login → role-secured navigation → controlled access to workflows.
2. RBAC administration: Roles, permissions, and role-permission mappings to enforce least privilege.
3. Employee directory: Employee master records, departments, and positions for consistent HR data.
4. Timesheet management: Timesheet capture with lifecycle states (submit/approve) to protect payroll inputs.
5. Overtime requests: Overtime submission + approval routing for controlled cost management.
6. Leave requests: Leave request creation, validation, and tracking for HR policy enforcement.
7. Leave balances: Balance tracking to prevent overuse and minimize manual reconciliations.
8. Payroll generation: Payroll run artifacts persisted for auditability and repeatable payouts.
9. Payroll approvals: Approval workflow supporting segregation of duties and compliance traceability.
10. Payslips & history: Payslip creation and historical retention for employee self-service and audits.
11. Reimbursements: Reimbursement requests and transactions for controlled expense workflows.
12. Compliance data models: Contribution rates and tax/compliance entities enabling consistent statutory calculations.
13. Audit logging: User log tracking for forensic traceability and operational accountability.

Impact Metrics

Metric	Before	After	Outcome
Payroll processing time	High manual effort	85% reduction	Faster cycles, fewer bottlenecks
Payroll accuracy	Error-prone manual calc	99.9% accuracy	Fewer adjustments and disputes
Compliance readiness	Ad hoc documentation	Automated artifacts + audit trail	Reduced audit risk
Workflow throughput	Siloed approvals	Standardized request/approval entities	Predictable operations at scale

Technical Highlights

• Design decisions & trade-offs: Chose JavaFX for a responsive desktop experience and Hibernate for consistent persistence patterns, trading some runtime introspection cost for delivery speed and maintainability.
  Maintained a layered flow (controller → service → repository) to keep business rules testable and UI logic thin.
• Performance considerations: Structured the system around transactional persistence and discrete workflow entities to support repeatable payroll runs and historical reporting without recomputation.
  (Optimization opportunities are preserved via repository-level query tuning and batching where needed.)
• Security implementations: Enforced RBAC across role-specific navigation and protected operations; persisted UserLog-style events to support audits and investigations.
• Testing approach: The build includes JUnit 5 and Mockito dependencies for unit testing services and repositories with mocked collaborators.

Future Roadmap

• CI build pipeline: Add GitHub Actions workflow for Maven build + tests and publish build status badge.
• External authentication: Integrate SSO (OIDC/SAML) for enterprise identity providers.
• Containerized local dev: Provide Docker Compose for MySQL + seeded data for 1-command onboarding.
• Reporting expansion: Add configurable compliance and payroll analytics exports.

Requirements

• Java: 21 (compiled with source/target = 21 in pom.xml)
• MySQL: local instance (connector: mysql-connector-j 9.0.0)

Run / Build

• Run (dev):

./mvnw clean javafx:run

• Build (fat JAR via shade):

./mvnw clean package

The shaded JAR is emitted under target/ and uses com.jomariabejo.motorph.Launcher as the main class.

Setup (SQL + Demo Users)

• MySQL setup + importing seed data: docs/sql-setup.md
• Seed SQL (schema + demo data): docs/sql/seed-data.sql
• Demo app logins (username/password + role): docs/users.md
  Default connection (change for production):
  jdbc:mysql://localhost:3306/payroll_system (user: root, password: admin) in src/main/resources/hibernate.cfg.xml.

Troubleshooting

Common setup issues

• JavaFX app won’t start: ensure you’re using Java 21 and run via the Maven wrapper (./mvnw ...).
• MySQL connection errors: confirm MySQL is running, the payroll_system database exists, and hibernate.cfg.xml has the right URL/user/password.
• Seed data not visible: verify you imported docs/sql/seed-data.sql into the same schema configured in hibernate.cfg.xml.