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Using Wizard to Create First HOQ

The second step in creating the QFD system is creating the first HOQ.

Step #1: From the QXL Stat Tools Tab, select the option QFD Wizard > Next Step.

Step #2: The Wizard Dialog for step two will pop up. Enter the number of rows (customer requirements) and number of columns (Characteristics Critical to Quality -- CTQ). The default number of rows is the Number of Requirements from the prior PCM + 5. The default number of CTQs is the Number of Requirements * 1.5. This allows growth.

Step #3: Press Ok.

The Wizard will create a new worksheet, labeled with "HOQ 1-1". The new worksheet contains the HOQ. The main parts of the HOQ are identified on the following picture:

The left side of the CORE area is the customer requirements, while the top row represents Characteristics Critical to Quality (CTQ). Customer requirements and importance rating columns are automatically copied from the previous PCM.

Step #4: Enter CTQs in the top row.

Step #5: Fill in the relationships in the central part of the Core area by entering the relationship value in the cell where relationships exists between the customer requirement and CTQ.

Step #6: Fill the correlations between CTQs in the roof area. The correlations go from strong negative to strong positive.

Step #7: Fill the Competitive Evaluation Area. Rank your company vs. the competition.

Step #8: Fill the Technical Evaluation Area. Enter the targeted value for each CTQ, and how technically difficult it is to achieve that value. Rank your company vs. the competition.

Step #9: Pareto HOQ. From the QXL Stat Tools Tab, select the option QFD > Pareto HOQ. If you want to override automatic ratings, you can use the Pareto chart to fill the Importance Rank row. It will be used for the next HOQ.

Following is an example of creating the first HOQ for a pinewood derby race car.