Quality control focuses on fulfilling quality requirements by finding defects through techniques like testing and inspection, while quality assurance takes a more proactive approach through planned activities to prevent defects by analyzing processes, identifying areas for improvement, and ensuring proper training and tools are used. Quality assurance oversees quality control and looks at trends, audits processes, and provides feedback to help continuously improve quality.

1. Quality Control
Vs
Quality Assurance
ISO 9000 Definitions
• Quality Control
– The operational techniques and activities that
are used to fulfill requirements for quality
• Quality Assurance
– All those planned and systematic activities
implemented to provide adequate confidence
that an entity will fulfill requirements for
quality
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2. Typical QC steps
Problem Management
Problem Problem
Identification Analysis
Problem Feedback to
correction QA
O/P to QA
Typical QA steps
Problem
Data
Trend
I/P Gathering
Analysis
from
QC
Process
Identification
Process Process
Improvement Analysis
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3. QC Vs QA
QC QA
Product Process
Reactive Proactive
Line function Staff function
Find defects Prevent defects
QC Vs QA - Examples
QC QA
Walkthrough Quality Audit
Testing Defining Process
Inspection Selection of tools
Checkpoint review Training
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