Continuous Improvement Toolkit QFD (Quality Function Deployment)
The Continuous Improvement Map Managing Risk FMEA Understanding Performance Check Sheets Data Collection PDPC RAID Log* Risk Assessment* Fault Tree Analysis Traffic Light Assessment Lean Measures Bottleneck Analysis** Process Yield Capability Indices Gap Analysis* Reliability Analysis Benchmarking** Data collection planner* Questionnaires Force Field Analysis Decision Tree Kano Analysis Interviews Control Charts Focus Groups Observations Critical-to Tree KPIs Graphical Analysis MSA Decision Balance Sheet Break-even Analysis Cost of Quality* OEE Descriptive Statistics Probability Distributions Histograms & Boxplots Run Charts Sampling Brainstorming Deciding & Selecting Pick Chart QFD Matrix Diagram Pugh Matrix Voting Pareto Analysis ANOVA 5 Whys Fishbone Diagram SCAMPER** Importance-Urgency Mapping Cost Benefit Analysis Paired Comparison Prioritization Matrix C&E Matrix Hypothesis Testing Morphological Analysis Affinity Diagram Mind Mapping* Suggestion systems Chi-Square Multi vari Studies Scatter Plots TPN Analysis Four Field Matrix Portfolio Matrix Correlation Root Cause Analysis Design of Experiment Tree Diagram* Attribute Analysis Relationship Mapping* Lateral Thinking Creating Ideas DMAIC Understanding Cause & Effect Confidence Intervals Regression How-How Diagram** Flowcharting Planning & Project Management* MOST SWOT Analysis Project Charter A3 Thinking SIPOC* PDCA Data Snooping Daily Planning RACI Matrix Kaizen Events Cross Training Value Analysis Mistake Proofing Simulation Waste Analysis Flow Process Charts IDEF0 Stakeholder Analysis Improvement Roadmaps Policy Deployment Standard work Pull Flow Visual Management Process Redesign Spaghetti Diagram Control Planning TPM PERT/CPM Activity Networks Gantt Charts Document control Implementing Solutions** Ergonomics Automation Just in Time 5S Quick Changeover Time Value Map Value Stream Mapping Service Blueprints Process Mapping Designing & Analyzing Processes
Quality Function Deployment (QFD): A methodology for taking the Voice of the Customer. Used to translate customer requirements into product specifications or design parameters. It is often sufficient to translate the VOC into CTQs. A prerequisite to QFD is Market Research.
Used mainly by manufacturing companies and by some service companies. Engineering uses it to focus on significant product or service design features. Marketing uses it to determine marketing strategies. Operation uses it to identify the processes that are crucial to improving quality.
Also used for competitive benchmarking. Used to refine existing processes. Provides the opportunity to assess possible improvements and set targets.
It Answers: What do our customers need and want (VOC)? How well are we doing relative to our competitors (CA)? What technical measures relate to our customers needs (VOE)? What are the relationships between the voice of the customer and the voice of the engineer (Correlations)? How does our service or product performance compare to that of our competition (Technical Comparison)? What are the potential technical Trade-offs?
Consists of matrices that analyze data sets according to the objective of the QFD process. What How How Correlation Technical Requirements Whys Customer Requirements Whats & Hows Customer Importance Rating How Much Weighted Importance
Approach: First, list the VOC. Second, weight the importance of each statement (from 1 to 10). Third, list the CTQs. Forth, rate the strength of the relationship (use the std. symbols). Finally, add up the weighted scores for each CTQ to establish which should be given highest priority. What / VOC Customer Requirements How / CTQs Technical Requirements Whats & Hows Weighted Importance
Typically you have customer and technical requirements. Weighted scores are assigned based on the market research information collected.
At the centre is the interaction matrix. At the roof, the interaction between design parameters are indicated.
Product Design Parts Development Production Planning Process Planning