7 QC and New 7 QC Comparison & Applicability
- 1. 7QC Tools vs New 7 QC Tools ©Tetrahedron Manufacturing Services Pvt Ltd Comparison of Application & Applicability By Tetrahedron Manufacturing services Pvt Ltd
- 2. Understand Basic 7QC Tools and New 7QC Tools Analytical Approach Define problem before collecting DATA Organize Information DATA 1- Generate Ideas 2- Formulate Plan Define problem after collecting DATA Organize Information 100 units.30 days.. 8 hours… 10 workers… 2 Engineers etc. Statements/Idea... NO Numbers/ Quantities…. VERBAL DATA NUMERICAL DATA Basic 7QC Tools New 7QC Tools Similarities: 1- Both are graphics rather than language based. Differences: 1- New tools are more relational and network oriented 2- New tools may take more practice to develop proficiency. ©TetrahedronManufacturingServicesPvtLtd
- 3. 7 QC & 7 New QC Tool Comparison 7 New QC N7 Used to Analyze Non-Quantitative Information Affinity Diagram Grouping of the idea of Brainstorming Relation Diagram Good to use if cause-and- effect contains circulation structure Tree Diagram Collection of plans and methods systematically. 7 QC Q7 Used to Analyze Quantitative Information Pareto Chart Combination of bar chart and accumulation distribution chart Histogram Graphs of Distribution for 1- D(dimension) data. Process Flow Chart Describe the process detail with elementsmethods systematically. Matrix Diagram Express the strength of relationship between two things Arrow Diagram Good to show the sequence of activities and proper planning. Process Decision Program Chart (PDPC) When info is incomplete Matrix Data Analysis Prioritizing between several viable options. with elements Scatter Diagram Graphs of Distribution for 2 data for relationship of two characteristics Cause and Effect Diagrams Systematic diagram of cause and effect. Similar to mind-mapping. Check Sheet A list of check points and data collection Control Chart A type of line chart to check the stability of the variation of data. ©TetrahedronManufacturingServicesPvtLtd
- 4. Choose your Right QC Tools at Right Time !!!!!!!! UnderstandtheProblem IdentifySolutions PlanImplementation Stage Condition When to Use 7 New QC Tool Stage 1 The problem requiring a solution is still unclear. Collect Verbal information on what’s happening Affinity Diagram Matrix Data Analysis Stage 2 The problem is obvious, but its causes To identify the Causes Relationship Diagram UnderstandtheProblem IdentifySolutions PlanImplementation Stage 2 obvious, but its causes are unknown When complex relationships exist among the many causes of a single result Matrix Diagram Stage 3 The problem and its causes are understood, but the required action is not known Plan the activities required to solve the problem Tree Diagram For Scheduling the activities Arrow Diagram when certain decisions will depend on the outcome of previous activities PDPC Method ©TetrahedronManufacturingServicesPvtLtd
- 5. Methods of Collecting Verbal Data Data Collection Method Investigative Techniques Individual Thinking Group Thinking Techniques Direct Observation Literature Search Interview Thinking Techniques Recall Reflection Thinking Technique Brainstorming Group Discussion ©TetrahedronManufacturingServicesPvtLtd