8D Problem Solving
Eight disciplines from team formation to recognition, with the two root causes most 8D reports miss.
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Knowledge center
Quality knowledge center
Practical guides for quality, supplier and project engineers. Methods explained clearly, with the judgement that comes from applying them on real shop floors.
Written from inspection practice
These articles explain the tools and methods we use every week at Turkish suppliers. They are educational, not substitutes for the standards or your own procedures, and they are kept deliberately practical.
Interactive charts are labelled as illustrative. Calculators are in the tools section.
01Quality engineering
Problem solving, statistics and quality economics.
Root Cause Analysis: 5 Why and Ishikawa
How to use 5 Why and fishbone diagrams to reach verified causes rather than convenient explanations.
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Pareto Analysis
Building and reading Pareto charts, weighting by cost and avoiding the classic misinterpretations.
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Control Plans and Process Flow
How process flow, PFMEA and control plan fit together, and how to audit them on the shop floor.
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Process Capability: Cp and Cpk
What Cp, Cpk, Pp and Ppk mean, when they are valid and what targets buyers typically set.
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Cost of Quality
The four cost categories, how to estimate them and why early inspection and prevention pay back.
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02Inspection guides
What to check, how, and against which criteria.
AQL Sampling Explained
How ISO 2859-1 plans work, how to choose AQLs and inspection levels, and the limits of sampling.
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Weld Imperfections Guide
Cracks, porosity, lack of fusion, undercut and more: causes, detection and how ISO 5817 treats them.
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Casting Defects Guide
Porosity, shrinkage, inclusions, cold shuts and hot tears: what causes them and how to detect them early.
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Machined Parts Inspection Guide
From drawing review to packing: the checklist our engineers use for machined component inspection.
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Risk-Based Vendor Inspection
How criticality, supplier history and complexity determine the right level of inspection for each order.
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03Audit guides
How to evaluate suppliers and processes.
How to Audit a Manufacturing Supplier
Preparation, process walk, evidence, special processes and scoring: a practical supplier audit approach.
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Special Process Control
Why special processes need qualification and monitoring, and what to check at the supplier and its sub-suppliers.
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04Industry insights
Sourcing and project execution in Turkey.
Sourcing Industrial Products from Turkey
Supplier landscape, strengths, typical risks and a quality focused sourcing approach for Turkey.
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Expediting vs Inspection vs Project Management
Three different questions: is it right, will it be on time, and is the whole project under control?
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Glossary of Quality and Inspection Terms
AQL to WPS: concise definitions of quality, inspection, welding, NDT and project terms.
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