lOMoARcPSD| 63525276
WGU D469 – Quality, Continuous
Improvement & Lean Six Sigma
Complete Study Guide for Objective Assessment (OA)
Preparation
Document Version: 1.0 — Continuous Learning Edition
Target Audience: WGU Students preparing for the D469 Objective Assessment
Format: Clean, structured, non-redundant, and printable continuous edition
📄 Course Overview & Key Blueprint Areas
This study guide consolidates the entire WGU D469 curriculum into a streamlined, high-yield
reference format.
D469 BLUEPRINT FOCUS
│
┌─────────────────────────────────┴─────────────────────────
────────┐
▼ ▼
SECTION 1: Quality Management Strategies SECTION 2: DMAIC Continuous
Improvement
- TQM Principles & Quality Gurus - Define: Charters, SIPOC, VOC to CTQ
- ISO Standards & QMS Systems - Measure: Data Types, MSA, Capability
- Lean Wastes (DOWNTIME) & 5S - Analyze: Root Cause, Fishbone, Hypotheses
- Six Sigma Foundations & Roles - Improve: FMEA, DOE, Selection Matrix
- Control: SPC Charts, Control Plans, Control Subjects
SECTION 1: Quality Management Strategies & Core
Frameworks
1. Total Quality Management (TQM) & Quality Perspectives
● Total Quality Management (TQM): An organization-wide management philosophy
focused on continuously improving processes, products, and services to achieve
customer satisfaction.
● Dual Perspectives of Quality:
○ Customer Perspective: Evaluates Fitness for Use (how well the product/service
satisfies user expectations and intended purpose).
○ Producer Perspective: Evaluates Quality of Conformance (how consistently the
product/service meets built-in design specifications).
, lOMoARcPSD| 63525276
Customer Needs ──> Voice of the Customer (VOC) ──> Critical to Quality (CTQ) ──> Design
Specification
● Voice of the Customer (VOC): The process of gathering customer requirements
through surveys, focus groups, and direct feedback.
● Critical to Quality (CTQ): Measurable performance targets derived directly from VOC
requirements.
● Quality Management System (QMS): A formalized system documenting policies,
processes, procedures, and responsibilities necessary to achieve quality goals.
⚠ Common WGU Trap: Quality of Design $\neq$ Quality of Conformance.
Quality of Design happens before production (incorporating desired features), while Quality
of Conformance occurs during production (building to specifications). 2. Quality Gurus
& Core Contributions
Guru Core Focus Key Contribution / Mnemonic
W. Edwards Variation reduction & PDCA Cycle
Deming continuous process (Plan-Do-Check-Act)
improvement
Joseph Juran Strategic quality management Juran Trilogy (P-C-I: Planning,
Control, Improvement)
Philip Crosby Defect prevention Zero Defects ("Quality is Free";
prevention over correction)
Kaoru Root-cause analysis & Fishbone Diagram & Quality
Ishikawa employee empowerment Circles
📄 Memory Tricks:
- Deming: Think "PDCA = Plan it, Do it, Check it, Adjust it."
- Juran: Think "PCI = Planning, Control, Improvement."
- Crosby: Think "Zero Cost for Zero Defects."
WGU D469 – Quality, Continuous
Improvement & Lean Six Sigma
Complete Study Guide for Objective Assessment (OA)
Preparation
Document Version: 1.0 — Continuous Learning Edition
Target Audience: WGU Students preparing for the D469 Objective Assessment
Format: Clean, structured, non-redundant, and printable continuous edition
📄 Course Overview & Key Blueprint Areas
This study guide consolidates the entire WGU D469 curriculum into a streamlined, high-yield
reference format.
D469 BLUEPRINT FOCUS
│
┌─────────────────────────────────┴─────────────────────────
────────┐
▼ ▼
SECTION 1: Quality Management Strategies SECTION 2: DMAIC Continuous
Improvement
- TQM Principles & Quality Gurus - Define: Charters, SIPOC, VOC to CTQ
- ISO Standards & QMS Systems - Measure: Data Types, MSA, Capability
- Lean Wastes (DOWNTIME) & 5S - Analyze: Root Cause, Fishbone, Hypotheses
- Six Sigma Foundations & Roles - Improve: FMEA, DOE, Selection Matrix
- Control: SPC Charts, Control Plans, Control Subjects
SECTION 1: Quality Management Strategies & Core
Frameworks
1. Total Quality Management (TQM) & Quality Perspectives
● Total Quality Management (TQM): An organization-wide management philosophy
focused on continuously improving processes, products, and services to achieve
customer satisfaction.
● Dual Perspectives of Quality:
○ Customer Perspective: Evaluates Fitness for Use (how well the product/service
satisfies user expectations and intended purpose).
○ Producer Perspective: Evaluates Quality of Conformance (how consistently the
product/service meets built-in design specifications).
, lOMoARcPSD| 63525276
Customer Needs ──> Voice of the Customer (VOC) ──> Critical to Quality (CTQ) ──> Design
Specification
● Voice of the Customer (VOC): The process of gathering customer requirements
through surveys, focus groups, and direct feedback.
● Critical to Quality (CTQ): Measurable performance targets derived directly from VOC
requirements.
● Quality Management System (QMS): A formalized system documenting policies,
processes, procedures, and responsibilities necessary to achieve quality goals.
⚠ Common WGU Trap: Quality of Design $\neq$ Quality of Conformance.
Quality of Design happens before production (incorporating desired features), while Quality
of Conformance occurs during production (building to specifications). 2. Quality Gurus
& Core Contributions
Guru Core Focus Key Contribution / Mnemonic
W. Edwards Variation reduction & PDCA Cycle
Deming continuous process (Plan-Do-Check-Act)
improvement
Joseph Juran Strategic quality management Juran Trilogy (P-C-I: Planning,
Control, Improvement)
Philip Crosby Defect prevention Zero Defects ("Quality is Free";
prevention over correction)
Kaoru Root-cause analysis & Fishbone Diagram & Quality
Ishikawa employee empowerment Circles
📄 Memory Tricks:
- Deming: Think "PDCA = Plan it, Do it, Check it, Adjust it."
- Juran: Think "PCI = Planning, Control, Improvement."
- Crosby: Think "Zero Cost for Zero Defects."
