Quality Management & TQM: Tools, Models & Real-World Cases

Core Concepts: Definitions & Scope

1. What is Quality Management?

Quality management (QM) is the systematic approach to ensuring products/services meet or exceed customer expectations while optimizing efficiency and reducing waste. It spans:

• Quality planning (setting standards)
• Quality assurance (process checks)
• Quality control (final inspections)

Why it matters in Nepal? Poor quality costs Nepali businesses 10–20% of revenue in rework, returns, and lost trust (e.g., Daraz’s delayed orders, NTC’s network drops). QM reduces these losses.

2. Total Quality Management (TQM): The Holistic Approach

TQM is a customer-focused, data-driven philosophy where every employee contributes to quality. Key pillars:

• Customer satisfaction (internal + external)
• Employee involvement (training, empowerment)
• Process improvement (continuous)
• Fact-based decision-making (data > guesswork)

In the Real World

1. Nabil Bank (Nepal)

   • Uses Six Sigma to reduce loan processing errors by 30% (from 5% to 1.5% rejection rate).
   • How? Trained staff in DMAIC (Define-Measure-Analyze-Improve-Control) to standardize loan approval workflows.

2. Daraz (Alibaba Group)

   • Applies PDCA cycles to fix supply chain delays (e.g., Kathmandu warehouse bottlenecks).
   • Result: Reduced order fulfillment time by 25% during Dashain sales.

3. NTC (Nepal Telecom)

   • Implements ISO 9001 for network reliability, cutting customer complaints by 40% in 2 years.
   • Tool used: Control charts to monitor call drop rates per district.

Key Tools & Techniques

1. Quality Control Tools (7 Basic Tools)

Used to identify and solve problems at the source. Visualize them:

mindmap
  root((Quality Control Tools))
    Check Sheet["1. Check Sheet\n- Tracks defects (e.g., Daraz order errors)"]
    Pareto Chart["2. Pareto Chart\n- 80/20 rule: Focus on top 20% causes\n- Example: Nabil Bank’s loan fraud sources"]
    Fishbone Diagram["3. Fishbone (Ishikawa)\n- Root cause analysis\n- Categories: Man, Machine, Method, Material, Environment"]
    Control Chart["4. Control Chart\n- Monitors process stability\n- Example: NTC’s call drop rate per hour"]
    Histogram["5. Histogram\n- Shows defect frequency\n- Example: Pathao driver delays by hour"]
    Scatter Diagram["6. Scatter Diagram\n- Finds correlations\n- Example: Traffic congestion vs. fuel prices in Kathmandu"]
    Flowchart["7. Flowchart\n- Maps processes\n- Example: Kathmandu Hospital’s patient flow"]

Worked Example: Fishbone for Daraz’s Late Deliveries Problem: 15% of orders arrive late in Pokhara. Categories & Causes:

• Man: Undertrained delivery agents (30% of cases)
• Machine: GPS failures in old vehicles (20%)
• Method: No real-time traffic updates (40%)
• Material: Weak packaging (10%)

Solution: Train agents + upgrade GPS + integrate Google Maps API.

2. PDCA Cycle (Plan-Do-Check-Act)

A continuous improvement loop used by Toyota (Lean Manufacturing) and Nepal’s Chaudhary Group.

flowchart TD
  A["PLAN\n- Identify problem\n- Set goals"] --> B["DO\n- Implement solution\n- Test on small scale"]
  B --> C["CHECK\n- Measure results\n- Compare to goals"]
  C --> D["ACT\n- Standardize if successful\n- Or restart PLAN"]
  D -->|"Loop"| A

Case Study: Himalayan Java (Nepal)

• Problem: Coffee beans spoiled in transit (30% waste).
• PDCA Steps:
  1. Plan: Use temperature logs to track spoilage.
  2. Do: Test insulated packaging for 100 shipments.
  3. Check: Spoilage dropped to 5%.
  4. Act: Standardized packaging across all routes.

3. Six Sigma: Reducing Defects to Near-Zero

• Goal: 3.4 defects per million (vs. industry average of 6,210).
• Method: DMAIC (Define-Measure-Analyze-Improve-Control).
• Belts:
  • White/Yellow: Basic training (used in Nabil Bank’s back office).
  • Green: Project leaders (e.g., Daraz’s logistics team).
  • Black: Master problem-solvers (rare in Nepal; hired from India).

Comparison Table: TQM vs. Six Sigma

4. ISO Standards: Global Quality Benchmarks

Nepal’s ISO 9001:2015 certified companies (e.g., Nepal Airlines, Himalayan Brewery) follow:

• Documented processes (SOPs)
• Internal audits
• Customer feedback loops

Worked Example: ISO 9001 for a Local Bakery (e.g., Bhat Bateni in Kathmandu)

1. Process Mapping: Flowchart for bread-making (dough → baking → packaging).
2. Controls: Temperature logs for ovens, customer complaint logs.
3. Audit: Quarterly checks by a certified auditor.

Cost vs. Benefit:

Quality Management in Nepal: Challenges & Solutions

1. Common Challenges

• Lack of standardization: Many SMEs (e.g., tailors in Thapathali) rely on "experience" over data.
• High employee turnover: Hard to sustain TQM culture (e.g., Pathao drivers).
• Infrastructure gaps: Power cuts, poor roads affect process reliability (e.g., NTC’s fiber optic maintenance).

2. Success Stories

Exam Tip

How to Score Full Marks

1. Define + Visualize:

   • Always draw Fishbone, PDCA, or Control Charts when asked about problem-solving.
   • Example: "Explain how Daraz could use a Fishbone diagram to reduce late deliveries." → Draw the diagram with 4–5 causes per category.

2. Link to Nepal:

   • Nabil Bank (Six Sigma), NTC (ISO 9001), Daraz (PDCA) are high-yield examples.
   • Avoid generic answers; name a Nepali company and explain their QM tool.

3. Calculate Savings:

   • Questions like "How much could a bakery save with ISO 9001?" require cost-benefit tables (show both costs and benefits).

4. Compare Models:

   • TQM vs. Six Sigma is a common 5-mark question. Use the table above but add 1–2 sentences on when to use each.

5. Case Study Format:

   • For "Apply TQM to a Nepali business," follow:
     1. Identify the business (e.g., Pathao).
     2. Pick 2–3 tools (e.g., PDCA for driver training, Control Charts for ride delays).
     3. Show expected outcomes (e.g., "Reduce no-shows by 20%").

Sample Exam Question & Answer

Question: "A local mobile phone repair shop in Kathmandu faces 30% customer complaints due to delayed repairs. Using quality management tools, suggest a solution and calculate potential savings if complaints drop to 10%."

Answer:

1. Tool: Fishbone Diagram (identify root causes).

   flowchart TD
     A["Delayed Repairs"] --> B["Man: Untrained Staff"]
     A --> C["Machine: Broken Equipment"]
     A --> D["Method: No Priority System"]
     A --> E["Material: Low-Quality Parts"]

   • Top Cause: Untrained staff (40% of complaints).

2. Solution: PDCA Cycle

   • Plan: Train staff on 3 new repair techniques (cost: NPR 25,000).
   • Do: Pilot with 5 staff for 1 month.
   • Check: Complaints drop to 15%.
   • Act: Roll out training + introduce priority tags for urgent phones.

3. Savings Calculation:

   • Current complaints: 30% of 1,000/month = 300 complaints.
   • New complaints: 10% of 1,000 = 100 complaints.
   • Reduction: 200 complaints/month.
   • Assumption: Each complaint costs NPR 500 (lost trust + rework).
   • Monthly Savings: 200 × 500 = NPR 100,000.
   • Annual Savings: 100,000 × 12 = NPR 1,200,000.
   • Net Benefit: 1,200,000 – 25,000 (training) = NPR 1,175,000.

Visual: