1. TI 2111 Work System Design and Ergonomics 2. Problem Solving Tools

2. TI 2111 Work System Design and Ergonomics Systematic Procedures for “PSK&E” Identify problem Collect data Analyze data Develop alternative solutions Select a solution Install solution Follow up

3. TI 2111 Work System Design and Ergonomics Problem Identification Tools: - Pareto analysis - Fishbone diagram - Gantt chart - PERT charting Examples: - Product with low profit - Bottleneck operations - Workers complaints

4. TI 2111 Work System Design and Ergonomics Recording Tools Operation Process Chart (OPC) Flow Process Chart Flow Diagram Gang Process Charts Worker and Machine Process Charts The Two-hand Process Chart

5. TI 2111 Work System Design and Ergonomics Analysis Tools 5 Why  Why is this operation necessary?  Why is this operation performed in this manner?  … 4W + 1H  How can the operation be performed better?  Who can best perform the operation?  Where could …  When …  Why …

6. TI 2111 Work System Design and Ergonomics 7 Tools Check sheets Histograms Pareto diagrams Cause and effect diagrams Graphs Scatter diagrams Line graphs

7. TI 2111 Work System Design and Ergonomics 7 New Tools Affinity Diagrams Relations Diagrams Tree Diagrams Process Decision Program (PDP) Charts Matrix Diagrams Prioritization Matrices Arrow Diagrams

8. TI 2111 Work System Design and Ergonomics 7 Waste 1. Waste from overproduction 2. Waste from waiting times 3. Waste from transportation and handling 4. Waste related to useless and excess inventories 5. Waste in production process 6. Useless motions 7. Waste from scrap and defects