1. PRODUCT SPECIFICATIONS chapter FOUR
DR. ROSMAINI TASMIN
Mac 2015
Motivational Clip

2. SPECIALIZED BICYLE COMPONENTS mountain bikes
NEW FRONT SUSPENSION FORK
MOUNTAIN BIKE MARKET
HIGH VALUE FOR RECREATIONAL CYCLIST
IDENTIFYING CUSTOMER NEEDS
INTERVIEW LEAD USERS
WORKING WITH DEALERS
COST AND WEIGHT?
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3. WHAT ARE SPECIFICATIONS?
PRECISE DESCRIPTION OF WHAT THE PRODUCT HAS TO DO
LANGUAGE OF THE CUSTOMERS, SUSPENSION FORK
SUBJECTIVE SUSPENSIONS
REDUCES VIBRATION TO HANDS
EASY HANDLING OF DIFFICULT TERRAIN
HIGH-SPEED ON BUMPY TRAILS
RIGID IN HIGH CORNERING
PRIDE
EASY MAINTENANCE
LAST LONGER TIME
SAFE IN CRASH

4. mountain bikes CUSTOMER NEEDS
CUSTOMER NEEDS VS. PRODUCT SPECIFICATIONS

5. TECHNICAL/PRODUCT SPECIFICATIONS
KEY DESIGN VARIABLES OF PRODUCT SUCH AS OIL VISCOSITY, SPRING CONSTANT OF SUSPENSION
CONSISTS OF A METRIC AND A VALUE
AVERAGE TIME TO ASSEMBLE (METRIC)
LESS THAN 75 SECONDS (VALUE)
FORMS OF VALUES;
NUMBER
A RANGE
AN EQUALITY
WITH APPROPRIATE UNITS (SEC., KG, JOULES)
TOUGH BIKE

6. WHEN TO ESTABLISH SPECIFICATIONS
AFTER IDENTIFYING THE CUSTOMER NEEDS, THE TEAM SETS TARGET SPECIFICATIONS
REVISION OF SPECIFICATIONS, TO SET FINAL SPECIFICATIONS
TWO STAGE PROCESS FOR ESTABLISHING SPECS
EXHIBIT 6-3, PAGE 94

7. STEP 1: PREPARE LIST OF METRICS
INDEPENDENT
VARS.
STEP 1: PREPARE LIST OF METRICS
EXHIIBIT 6-4, PG. 96 LIST OF METRICS FOR THE SUSPENSION

8. THE NEEDS-METRICS MATRIX
ONE METRIC,
ONE NEED.
EXHIBIT 6-5, PAGE 97

9. STEP 2: COLLECT BENCHMARKING INFORMATION

10. Competitive benchmarking
With the most Stars

11. STEP 3: SET IDEAL & ACCEPTABLE VALUES
IDEAL VALUE IS THE BEST RESULT THE TEAM COULD HOPE FOR
ACCEPTABLE VALUE IS THE VALUE THAT WOULD JUST BARELY MAKE THE PRODUCT COMMERCIALLY VIABLE.
CONCEPT GENERATION & CONSEPT SELECTION
5 WAYS IN STATING SPECS:
>= AT LEAST [325 kN/m]
<= AT MOST [suspension fork <= 1.4kgs]
BETWEEN X AND Y [800 N >= x >= 480 N]
EXACTLY Y=38MM
A SET OF DISCRETE VALUES: radius 1.000, 1.125, cm

12. STEP 4: REFLECT ON RESULTS & PROCESS
TEAM MAY REQUIRE FEW ITERATIONS TO AGREE ON TARGETS (PRODUCTION SPECS VS QUALITY SPECS ETC.)
IS THE GOAL SET TOO HIGH, SO THAT IF FALLS BACK STILL AT HIGH RANGE (MARKETING)
OFFERING MULTIPLE PRODUCTS /MULTIPLE OPTIONS
MISSING SPECS
PROCEED TO SOLUTION CONCEPTS

13. SETTING FINAL SPECIFICATIONS
TECHNICAL PERFORMANCE METRICS VS. COST

14. STEP 1: DEVELOP PRODUCT TECHNICAL MODEL
TOOL FOR PREDICTING THE VALUES OF THE METRICS FOR A PARTICULAR SET OF DESIGN DECISION
ANALYTICAL AND PHYSICAL APPROXIMATIONS OF A PRODUCT
OIL-DAMPED COIL SPRING CONCEPT FOR SUSPENSION FORK
DESIGN-OF-EXPERIMENT (DOE)

15. TECHNICAL FEASIBILITY

16. PROTOTYPES = TECHNICAL MODELS

17. STEP 2: DEVELOP PRODUCT COST MODEL

18. STEP 3: REFINE SPECIFICATIONS
FINAL SPECIFICATIONS CAN BE ACCOMPLISHED IN GROUP SESSION
FINAL SPEC PRODUCT = BEST AGAINST COMPETITOR, SATISFY CUSTOMER NEEDS & ADEQUATE PROFITS
HOW TO DO THAT,  COMPETITIVE TRADE- OFF MAP
HIGH-PERFORMANCE SUSPENSIONS (LOW MONSTER SCORES)
TRADE-OFF CURVES

19. COMPETITIVE MAP

20. FINAL SPECS

21. STEP 4: FLOW DOWN SPECS
A PRODUCT IS MADE OF MANY SUBSYSTEMS, SUCH AS CAR & BICYCLE
FLOW DOWN FROM OVERALL SPECS TO SUB SYSTEM SPECS
ALL SUBSYSTEMS SPECS  OVERALL SYSTEM SPECS
SOME SUBSYSTEM SPECS ARE DIFFICULT TO MEET
THIS CAUSES THE COST OF PRODUCT TO BE HIGHER
MEETING ENGINE SPECS IS MUCH MORE TOUGHER THAN MEETING CAR BODY SPECS

22. STEP 5: REFLECTION REMEMBER… TO REMEMBER WINNING PRODUCTS?
UNCERTAINTY IN TECHNICAL MODEL AND COST
CHOSEN CONCEPT IS THE BEST FOR MARKET?
BETTER TECHNICAL MODEL FOR FUTURE

23. Thank you class…!
Motivational
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