Evolze - Equipment Repair Management System

Evolze is an engineering solutions company that provides innovative and sustainable engineering services across different industries.

In this project, I was responsible for the end-to-end design and development of an Equipment Repair Management System, covering business process design, system architecture, frontend and backend development, database design, workflow automation, security, and deployment preparation.

The system provides a centralized platform for managing equipment repair operations, enabling teams to track the complete repair lifecycle, manage maintenance tasks, maintain repair histories, and improve operational visibility.

Link: Evolze

Project Background

Traditional equipment repair operations involve multiple business stages, including equipment receiving, inspection, fault diagnosis, quotation, spare parts management, repair, testing, and delivery.

Managing these activities across different teams requires clear business processes, consistent information management, and reliable tracking of repair progress.

The project aimed to develop an integrated repair operations platform to:

Standardize the complete equipment repair lifecycle.
Centralize repair orders, equipment information, and maintenance records.
Improve visibility into repair status and task assignments.
Support different repair scenarios, including internal repairs, external repairs, spare parts replenishment, and rework.
Maintain complete operation histories and audit trails.
Provide a modular foundation for future system integrations and business expansion.

The initial implementation focused on establishing the core repair workflow and supporting business functions.

System Architecture

The application was designed using a modular full-stack architecture, separating frontend presentation, backend business logic, workflow orchestration, and data persistence.

Overall System Architecture

The system consists of the following major components:

Frontend Application

React 19 and TypeScript
Ant Design 6
Repair order management
Operational dashboard
Workflow task management
Dynamic business process forms

Backend Application

Java 21 and Spring Boot 4
RESTful API services
Business logic and validation
Transaction management
Spring Security and RBAC
Authentication and authorization

Workflow Engine

Flowable 8
BPMN 2.0 process definitions
Workflow task assignment and execution
Business state transitions
Repair process history

Data Storage

PostgreSQL
Spring Data JPA
Flyway database migrations

Infrastructure and Integration

Feishu OAuth authentication
Alibaba Cloud OSS integration
Structured application logging
API documentation and health monitoring

Business Process Architecture

The repair workflow covers the complete lifecycle:

1	Equipment Receiving → Inspection → Fault Diagnosis → Quotation → Customer Confirmation → Spare Parts Preparation → Repair → Testing → Shipping → Closure

The workflow also supports additional business scenarios:

Internal and external repair processes
Spare parts replenishment and inventory consumption
Failed testing and return-to-repair workflows
Returned equipment and linked rework orders

Flowable BPMN was introduced to manage workflow execution and ensure that repair tasks follow valid business transitions.

My Role

I was responsible for the complete business process implementation and full-stack development of the Equipment Repair Management System.

Key Contributions

Analyzing business requirements and designing the repair lifecycle.
Designing the application architecture and database structure.
Implementing frontend interfaces and backend services.
Designing and implementing BPMN workflows using Flowable.
Developing repair order management, task processing, inventory operations, and quotation workflows.
Implementing authentication, authorization, and role-based access control.
Managing data consistency, workflow validation, and operation history.
Preparing application packaging, local deployment, and supporting infrastructure integration.

Deployment and Rollback Plan

Configured Docker for containerized deployment of frontend and backend applications.
Developed application packaging scripts for frontend and backend releases.
Integrated automated formatting, linting, type checking, and test validation into the build process.
Implemented structured JSON logging and request tracing.
Configured Swagger documentation and application health endpoints.
Prepared the application for Alibaba Cloud deployment and further infrastructure integration.