TABLE L7.2 Customer Needs Evaluation Dysfunctional Neutral Live-with Like Must-be Dislike A A I Functional Must be Neutral Live-with Dislike Q R R R R A 1 I 1 I R I 1 I R 0 M M M Q 1 R Altractive (A), Indifferent (I). Must be (M), One dimensional (O). Questionable (Q), and Reverse (R) Table L7.3 shows customer answers for three attributes of a mobile phone: keypad-display-same- side'. 'keypad-small-display-large", and "keypad-large-display-small.' The intention is to identify the customer preference regarding the relative size of a keypad and display of a mobile phone. Figure 17.2 shows how the status of "keypad-display-same-size is determined from the answers of fifteen customers using Kano evaluation in Table L7.2. As seen Figure L7.2. this customer's attribute is *Indifferent (ie.. does not help much to increase his/her satisfaction). There are a relatively large num- ber of customers that consider it to be "Reverse (ie. does not want keypad and display to be equal in size). Therefore, the product developer should avoid this attribute and find solutions from the other two. GROUP TASK Find out the status of the two other attributes in Table L7.3. and determine what the rela- tive size of the keypad and display of mobile phone should be according to your overall evaluation TABLE 17.3 Customer Answers for Three Attributes of a Mobile Phone Keypad-display-same-size Keypad-small-display-large Keypad-large-display-small Customer Functional Dysfunctional Functional Dysfunctional Functional Dysfunctional 1 2 3 Dislike Live-with: Dislike Live-with Neutral Must be Must be Neutral Like Neutral Live with Live with Must-Be Like Like Must-he Like Like Dislike Dislike Dislike Dislike Neutral Neutral Dislike Dislike Dislik Dislike Dislike Dislike Dislike Must be Must be Like Music Must be Must be 4 5 6 8 9 10 11 12 13 14 15 Neutral Like Neutral Dislike Must-be Neutral Like Like Neutral Dislike Neutral Must-be Dislike Neutral Live-with Neutral Must be Must-be Must-be Must-be Must-be Dislike Like Like Dislike Live-with Dislike Dislike Live-with Like Live-with Live-with Dislike Dislike Dislike Dislike Dislike Dislike Live-with Live-with Must-be Must-be Like Must-be Must be Like Like Neutral 4.7 Problems 129 WA DDD Keypad-display-same-stre 4.7 PROBLEMS 4.7.1 Team Activities 1. Use the statement "Connect two bodies of water with no gradient." Develop a series of questions to better understand the need. 2. Use the following statement: "Ice is forming on the roof with density gradient." Develop a series of questions to better understand the need. 3. In this activity each group, as shown in the following list, asks as many questions as they can to clarify the given design statement: (a) Groups 1 and 9: Design a coffee maker. (b) Groups 2 and 10: Design a safe ladder (e) Groups 3 and 11: Design a safe chair. (d) Groups 4 and 12: Design a safe lawn mower. 4. Draw an objective tree for an automatic tea maker, 5. Draw an objective tree for the following: If you drive in the state of Florida, you my notice some traffic congestion due to the trees being trimmed on the state roads and freeways. Assume that the Florida Department of Transportation is the client. Usually. branches 6 inches or less in diameter are trimmed. The allowable horizontal distance from the edge of the road to the branches is 6 ft. The material removed from the trees must be collected and removed from the roadside. To reduce the cost of trimming, a maximum of only two workers can be assigned for each machine. The overall cost, which includes equipment, labor, etc.. needs to be reduced by at least 25% from present cost. The TABLE L7.2 Customer Needs Evaluation Dysfunctional Neutral Live-with Like Must-be Dislike A A I Functional Must be Neutral Live-with Dislike Q R R R R A 1 I 1 I R I 1 I R 0 M M M Q 1 R Altractive (A), Indifferent (I). Must be (M), One dimensional (O). Questionable (Q), and Reverse (R) Table L7.3 shows customer answers for three attributes of a mobile phone: keypad-display-same- side'. 'keypad-small-display-large", and "keypad-large-display-small.' The intention is to identify the customer preference regarding the relative size of a keypad and display of a mobile phone. Figure 17.2 shows how the status of "keypad-display-same-size is determined from the answers of fifteen customers using Kano evaluation in Table L7.2. As seen Figure L7.2. this customer's attribute is *Indifferent (ie.. does not help much to increase his/her satisfaction). There are a relatively large num- ber of customers that consider it to be "Reverse (ie. does not want keypad and display to be equal in size). Therefore, the product developer should avoid this attribute and find solutions from the other two. GROUP TASK Find out the status of the two other attributes in Table L7.3. and determine what the rela- tive size of the keypad and display of mobile phone should be according to your overall evaluation TABLE 17.3 Customer Answers for Three Attributes of a Mobile Phone Keypad-display-same-size Keypad-small-display-large Keypad-large-display-small Customer Functional Dysfunctional Functional Dysfunctional Functional Dysfunctional 1 2 3 Dislike Live-with: Dislike Live-with Neutral Must be Must be Neutral Like Neutral Live with Live with Must-Be Like Like Must-he Like Like Dislike Dislike Dislike Dislike Neutral Neutral Dislike Dislike Dislik Dislike Dislike Dislike Dislike Must be Must be Like Music Must be Must be 4 5 6 8 9 10 11 12 13 14 15 Neutral Like Neutral Dislike Must-be Neutral Like Like Neutral Dislike Neutral Must-be Dislike Neutral Live-with Neutral Must be Must-be Must-be Must-be Must-be Dislike Like Like Dislike Live-with Dislike Dislike Live-with Like Live-with Live-with Dislike Dislike Dislike Dislike Dislike Dislike Live-with Live-with Must-be Must-be Like Must-be Must be Like Like Neutral 4.7 Problems 129 WA DDD Keypad-display-same-stre 4.7 PROBLEMS 4.7.1 Team Activities 1. Use the statement "Connect two bodies of water with no gradient." Develop a series of questions to better understand the need. 2. Use the following statement: "Ice is forming on the roof with density gradient." Develop a series of questions to better understand the need. 3. In this activity each group, as shown in the following list, asks as many questions as they can to clarify the given design statement: (a) Groups 1 and 9: Design a coffee maker. (b) Groups 2 and 10: Design a safe ladder (e) Groups 3 and 11: Design a safe chair. (d) Groups 4 and 12: Design a safe lawn mower. 4. Draw an objective tree for an automatic tea maker, 5. Draw an objective tree for the following: If you drive in the state of Florida, you my notice some traffic congestion due to the trees being trimmed on the state roads and freeways. Assume that the Florida Department of Transportation is the client. Usually. branches 6 inches or less in diameter are trimmed. The allowable horizontal distance from the edge of the road to the branches is 6 ft. The material removed from the trees must be collected and removed from the roadside. To reduce the cost of trimming, a maximum of only two workers can be assigned for each machine. The overall cost, which includes equipment, labor, etc.. needs to be reduced by at least 25% from present cost. The