During Production Inspection (DUPRO)

During Production Inspection, also known as DUPRO, is a type of quality control inspection that takes place during the manufacturing process. It is typically conducted when a portion of production—usually between 20% and 80%—has been completed and some units are already packed. The goal is to identify any potential issues or defects early, ensuring the final product meets required standards.

What is a during-production (DUPRO) inspection?

A DUPRO (During Production Inspection) is a mid-production quality control process performed to:

• Verify that products are being manufactured according to the approved specifications

• Ensure that production is on schedule

• Detect and correct defects or inconsistencies before final production is completed

This proactive approach helps maintain quality consistency and reduce risks related to delays, rework, or recalls.

Why perform a DUPRO inspection?

Performing a DUPRO inspection provides critical benefits:

• Early detection of defects
  Catching problems during production allows for corrective actions before completion.

• Cost savings
  Prevents expensive rework, product waste, or post-shipment recalls.

• Assurance of on-time delivery
  Helps confirm that the production timeline is on track and deadlines will be met.

• Improved quality control
  Maintains consistent output and ensures alignment with customer expectations.

Steps to Perform DUPRO at VIS?

At VIS, we follow a strict, standardized protocol to ensure thorough and consistent inspections. The typical steps of a DUPRO inspection include:

1. Confirm the production timeline and schedule with the supplier

2. Verify compliance with original product specifications

3. Inspect semi-finished and finished goods for defects (functional, aesthetic, or safety-related)

4. Evaluate packaging materials and packing processes

5. Check adherence to agreed-upon quality standards

6. Generate a comprehensive inspection report, including findings, recommendations, and photographic evidence

What’s Included in a DUPRO Checklist?

A DUPRO checklist typically includes:

• Production Status
  Check current production output, capacity, and whether the timeline is on schedule.

• Product Specifications
  Verify attributes like size, color, weight, material, and design against approved specifications.

• Product Quality
  Inspect for visible or functional defects, performance issues, and safety compliance.

• Packing & Packaging
  Review unit packing, inner/outer packaging, labeling, and export carton quality.

• Compliance Verification
  Ensure products are being manufactured according to contractual quality requirements and relevant standards.

Why Partner with VIS for DUPRO Inspections?

Choosing VIS as your quality control partner brings multiple advantages:

• ✅ Experienced and highly trained inspectors with strong manufacturing knowledge

• ✅ Streamlined inspection process aligned with international standards

• ✅ Clear, detailed reports with photographic evidence for full transparency

• ✅ Tailored inspection solutions based on your specific product and business needs

• ✅ Peace of mind, knowing your production is being monitored and maintained to the highest standards

Conclusion

DUPRO (During Production Inspection) is a critical part of maintaining product quality and meeting delivery timelines. By inspecting during manufacturing, you can identify and resolve issues early, avoiding costly consequences later.

Partnering with a reputable inspection provider like VIS ensures your products are manufactured to the highest standards—delivering confidence, reliability, and customer satisfaction.