Test Engineering is the branch of engineering that develops and implements systems, procedures, and tools to verify the functionality, quality, safety, and performance of a product or system.
It is present in various sectors — electronic, automotive, medical, aerospace, cosmetic, industrial — and plays a critical role in ensuring technical compliance and traceability throughout the product lifecycle.
In practice, test engineering ensures that each delivered unit is validated, reliable, and meets specifications.
🧩 Main Responsibilities of a Test Engineer
- Design and automate test benches, fixtures, and measurement systems
- Develop test sequences in TestStand, LabVIEW, C#, Python
- Ensure repeatability, traceability, and test coverage
- Evaluate results with KPIs like FPY, CPK, MTBF, OEE
- Diagnose failures, support repair, rework, and root cause analysis
- Integrate systems with databases, SCADA, MES, ERP
⚙️ Components of a Typical Test System
| Component | Function |
|---|---|
| Test Hardware | Instruments (DMM, oscilloscope, power supplies), switches, sensors |
| Interface (Fixture) | Mechanical/electronic connection between the product (DUT/UUT) and the system |
| Test Software | Measurement logic, control, decision, and communication with instruments |
| Database | Serial record, measurements, failures, operator, and traceability |
| Report | Documented evidence of test status, in PDF, CSV, database, etc. |
🔧 How AJOLLY Testing Supports Your Projects with Test Engineering
AJOLLY Testing offers complete solutions in test engineering, focusing on efficiency, modularity, automation, and industrial reliability.
🛠️ Custom Test System Development
- Custom benches and jigs for production, laboratory, or validation
- Integration with industrial protocols (RS-485, CAN, I²C, Modbus, Ethernet/IP, OPC UA)
- Instrument control with TestStand, LabVIEW, C# or microcontrollers
🧪 Functional and Electrical Testing
- Verification of digital, analog signals, communication, sensors, actuators
- Simulation of real operational environments for functional validation (FT)
- Precise measurements with metrological traceability
📊 Analysis and Traceability
- Automatic data collection for FPY, cycle time, Pareto, top failures
- Automatic report generation and custom dashboards
- Integration with SCADA, MES, ERP systems, and SQL databases
🔄 Support for NPI, Production, and Maintenance
- Monitoring of new product validations (NPI)
- Diagnostic tools for repair and rework
- Test engineering as a link between R&D, production, and quality
With AJOLLY Testing, Test Engineering becomes a strategic pillar of industrial quality, connecting data, systems, and people to deliver reliable, validated, and traceable products.