Closing the WPS–PQR–Welder Gap
A Digital Traceability Framework
Link the procedure. Link the proof. Link the person — then let the client watch it happen. Three plain questions, one connected, audit-ready answer.
Jayant Chandavarkar
CEO, OMS Business Digitalisation Pvt Ltd · 24 August 2026
The Problem
It Works — Until Someone Asks for Proof
Most welding companies still run welding quality documentation on paper: binders of approved procedures, folders of test results, and a logbook of who's certified for what. Three separate records are supposed to answer one question together. In practice, they rarely talk to each other.
The auditor
Walks in and asks you to prove a specific weld, on a specific job, was made by a qualified person under an approved procedure.
The lapse
A welder's certificate expires quietly, in a filing cabinet — nobody notices until someone checks.
The dossier
A client asks for records on a job finished two years ago — and someone has to go find the right binder.
Three Connected Questions
The Procedure
What to do — the approved welding procedure (WPS)
The Proof
It works — test evidence that the procedure produces a sound weld (PQR)
The Person
Who's qualified — confirmation this specific person can perform it (WQR)
These three are supposed to form one traceable chain. Usually they're kept in separate files, by different people.
Why It Matters
Qualification Isn't a One-Time Event — It's a Moving Target
A welder's certification can lapse in as little as six months. Almost every major welding standard — American, European, or Australian — shares the same quiet rule: if a welder stops using a qualified process for six months, that qualification lapses, even if the formal certificate is still "valid" on paper.
It's not paperwork for its own sake — it's a clock that keeps resetting, quietly, on every single welder.
Sources: ASME Section IX (QW-322), AWS D1.1, ISO 9606-1
When the Chain Breaks
The procedure is used without valid proof
A WPS gets referenced on a job, but the PQR that's supposed to back it up doesn't actually cover that material or thickness.
An unqualified person welds anyway
A welder's qualification quietly expires — the job proceeds because nothing flagged it.
The audit trail doesn't hold up
When asked to prove a joint was made correctly, the answer takes hours of manual cross-referencing — or doesn't hold together at all.
The Approach
Link the Three Records — and Check Them at the Moment of Work
The fix isn't complicated: keep the procedure, its proof, and the person's qualification in one linked record — and check all three the moment a job is assigned, not after.
1
Job assigned
Welder + WPS selected
2
System checks
Procedure, proof, person — in one linked record
3
Cleared to weld
Or flagged, before it starts
The point isn't more paperwork — it's the same three questions, answered automatically, before the arc starts instead of after an auditor asks.
This was implemented as a module inside a cloud-based operations platform used by NDT and inspection companies in India and Australia.
Closing the Loop
The Chain Isn't Complete Until the Weld Is Verified Sound
Procedure, proof, and person only tell you the weld was allowed to happen. The fourth piece — the actual test result — tells you it happened correctly. Today, the weld record and the NDT record usually live in different systems, linked only by a person manually matching a joint number.
Attaching the test result directly to the same joint record closes that gap — and means when a defect turns up, the exact procedure, welder and parameters behind it are already known, not re-discovered.
The Full Traceability Chain
Procedure
WPS — what to do
Proof
PQR — it works
Person
WQR — who's qualified
Test Result
RT · UT · PT · MT — it happened correctly
Beyond the Shop Floor
Let the People Paying for the Job See It Happen Live
A client — an EPC contractor, an asset owner, a certifying body — sees this data one of two ways: a final dossier at handover, or a request answered by someone digging through files.
Today
Records requested → someone searches → a document package is assembled and sent — hours to days later.
With a Linked Digital Record
The client has standing, live visibility into weld and test status — no request needed, nothing to assemble.
As this becomes standard practice, it stops being a demo feature and becomes a basic expectation — the same way live tracking became normal for shipping, long before it became normal for quality records.
In Production
What Changed Once the Three Records Were Linked
Observed across NDT and inspection companies in India and Australia running this approach.
Audit readiness
Before
Hours of manual cross-referencing
After
A live, exportable trail — ready on demand
Non-conformances
Before
Expired or mismatched qualifications went unnoticed
After
Mismatches flagged at job assignment, before welding starts
Cost
Before
International platforms priced for US/EU budgets
After
Made in India — under half the cost of comparable platforms
What We Learned
Three Things That Mattered More Than the Software Itself
01
The gap is rarely the procedure
It's the missing, verifiable link to the individual welder that causes most audit findings — not the WPS or PQR themselves.
02
Tracking has to be proactive
A searchable expiry field isn't enough. Teams need an alert pushed to them — not a report they have to remember to run.
03
Reuse is what drives adoption
Pulling data forward automatically — instead of re-typing it — is what actually gets busy QA teams to use the system.
Where This Is Heading
From Proving It Happened, to Catching It Before It Goes Wrong
Cloud
Records live and current from any site — the two-minute retrieval that audits expect, and the same view for a client anywhere.
AI, Already in Production
AI systems for reading weld radiographs are already in field use, reporting well over 90% defect-detection accuracy and cutting review time from minutes to seconds per image — support for the inspector, not a replacement for the sign-off.
A Digital Qualification History
A verified record of a welder's past tests and results that moves with them to a new employer — who still must formally requalify them, but doesn't start from zero.
AI should stay decision support, not the decision-maker — the codes require a qualified person to make that call. Its job is surfacing signal and removing grunt work.
The Takeaway
Welding isn't behind on quality. It's behind on digitalization.
-
Link the procedure
-
Link the proof
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Link the person
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Then let the client watch it happen
Thank you — questions welcome.
Conclusion
Traceability Is a Strategy, Not a Filing System
The gap in welding quality is rarely the welding itself — it's the missing, verifiable connection between the procedure, its proof, and the individual who performed the work. Once those three records live in one linked system, checked at the moment of assignment, the audits stop being an exercise in digging and start being a demonstration.
Three plain questions, one connected answer — checked before the arc starts
The test result closes the loop: evidence the weld happened correctly
Clients get live visibility, not a dossier assembled in hours or days
Digitalisation makes welding quality traceable, exportable, and audit-ready on demand
About the Presenter
Jayant Chandavarkar
CEO, OMS Business Digitalisation Pvt Ltd, Bengaluru
With over 22 years of experience in IT and enterprise application deployment across manufacturing and inspection industries, Jayant leads OMS India's operations — transforming how testing and inspection labs operate through cloud-based LIMS and NDE digitalisation. He presented at ICENDE 2025 on NDE 4.0 and open-source digital twins, and at ICENDE 2026 on closing the WPS–PQR–Welder gap with a digital traceability framework adopted by NDT and inspection companies across India and Australia.
jayant@omssoftware.com.auSee Welding Traceability in Action with OMS
OMS has deployed the linked WPS–PQR–Welder workflow across NDT and inspection companies in India and Australia. Book a demo to see how your lab or company can transition from binders to a fully digital, audit-ready traceability system.