[email protected] engr-11_lec-10_chp3_fomulate_designprob.ppt 1 bruce mayer, pe...
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[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt1
Bruce Mayer, PE Engineering-11: Engineering Design
Bruce Mayer, PELicensed Electrical & Mechanical Engineer
Engineering 11
FormulateFormulateDesign Design ProbProb
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt2
Bruce Mayer, PE Engineering-11: Engineering Design
Example Example Improve MotorCycle Improve MotorCycle
Other Useful Information• What is the target cost-to-manufacture?
• Which is more preferred: low-end torque or high-end speed?
• What is the anticipated production run quantity?
• What types of instruments are preferred, digital and or analog?
• What are the desired service intervals?
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt3
Bruce Mayer, PE Engineering-11: Engineering Design
Formulating Design ProblemsFormulating Design Problems Designing a high-performance motorcycle What is a “design problem?” What is the “solution” to a design problem? How do we solve a design problem? Steps in formulating the Design Problem Customer & Company requirements Engineering Design Specifications Gaining Consensus Quality Products QFD/House of Quality
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt4
Bruce Mayer, PE Engineering-11: Engineering Design
What is a design problem?What is a design problem?
An opportunity to make and sell a new product
Need to fix an existing product Make and sell a variant of an older
design
[Customer or Company Requirements]↓define↓
[”Function”]
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt5
Bruce Mayer, PE Engineering-11: Engineering Design
Example Example Improve MotorCycle Improve MotorCycle What info would help us understand this
design problem? • How quickly should the MotorCycle accelerate to
60 mph?
• What should the top speed be?
• Is fuel consumption less important than acceleration?
• What riding comforts are expected?
• Is an electric starter desired?
• Will the customer tolerate a liquid cooling system?
• Will customer care about aesthetics?
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt6
Bruce Mayer, PE Engineering-11: Engineering Design
““Solution” to a Design Prob Solution” to a Design Prob Set of Drawings & Bills of Materials Predicted performance calculations Test reports on prototypes Manufacturing specifications Estimates of sales-revenue, costs, profit
[“design” ready for manufacture] →defines→ [“Form”]
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt7
Bruce Mayer, PE Engineering-11: Engineering Design
How to Solve a Design Problem?How to Solve a Design Problem?
Design problem(function, customer need)
Solution(form, manufacturable product design)
Decision making processes and
activities
“Formulate” first!i.e., Decide on
needed Decisions...
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt8
Bruce Mayer, PE Engineering-11: Engineering Design
Decisions & Info FlowDecisions & Info Flow
Seek info
InterpretSummarize
Review
Customer needs?Competition?
continue
Obtain management approval
probe
Engineering Design Specification
Gain consensus
Functional requirements?Targets? Constraints?
Evaluation criteria?
revise
discontinue
Preliminary design specifications
Formulating process Literature, Surveys Market StudiesFocus GroupsObservation StudiesBenchmark Studies
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt9
Bruce Mayer, PE Engineering-11: Engineering Design
Steps In Formulating Design ProbSteps In Formulating Design Prob
1. obtain a detailed understanding of the design problem; i.e., the application
2. document our understanding in an Engineering Design Spec (EDS)
3. choose a solution strategy4. develop a project plan (scope of work,
budget and schedule)5. establish a consensus among team
members & management
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt10
Bruce Mayer, PE Engineering-11: Engineering Design
1. Obtain a Detailed Understanding1. Obtain a Detailed Understanding
Need ACCURATE Information on• Company Requirements (easy)
• CUSTOMER Requirements (hard)
The “Requirements” for a Design typically divide into two categories• PERFORMANCE Requirements
• Constraint Requirements– e.g., Meet N.E.C. Electrical Code
• Business Impact Revenue, Profit, RoI
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt11
Bruce Mayer, PE Engineering-11: Engineering Design
MMarket arket RRequirements equirements SStateMenttateMent
The “MRS” is Also often called the Market Requirements Document (MRD)
MRS Most Often Prepared by the Technical Marketing Team With Extensive Consultation with • Upper Management
• Senior Design Engineers
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt12
Bruce Mayer, PE Engineering-11: Engineering Design
MRS/MRD PurposeMRS/MRD Purpose
Provide an outline of the prospective product for all interested parties• Investors, Sales Engineers, Finance,
Upper Management, Engineering, others
Provide enough information for engineering to write a functional design specification for the product• The Design Spec if Often Called the
Engineering Design Specification (EDS)
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt13
Bruce Mayer, PE Engineering-11: Engineering Design
MRS ↔ Design EngineeringMRS ↔ Design Engineering
Once the New Product Has been Approved (i.e., Meets the Company RoI Requirement) The Design Engineering Focuses on These Portions of the MRS• Product Performance
– Becomes the Heart of the Engineering Design Spec (EDS)
• Code-Compliance Constraints
• Product Cost Targets
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt14
Bruce Mayer, PE Engineering-11: Engineering Design
MR
S E
xamp
le M
RS
Exam
ple
P
erform
ance S
pec
Perfo
rman
ce Sp
ec
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt15
Bruce Mayer, PE Engineering-11: Engineering Design
Customer Req’s for MotorCycleCustomer Req’s for MotorCycle Function/Performance:
• start engine quickly• support rider(s) comfortably
Operating• Tolerated road shock: PotHoles, Bumps• Run in wet, cold, high altitude Environs
Other• Long maintenance intervals• Good fuel economy
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt16
Bruce Mayer, PE Engineering-11: Engineering Design
MRS/MRD Information SourcesMRS/MRD Information Sources
Customer Surveys Market Studies Technical & Trade Literature Focus Groups Observation Studies Benchmark Studies Trade/Industry Groups
• SIA, SEMI, SemaTech, etc.
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt17
Bruce Mayer, PE Engineering-11: Engineering Design
Company Req’s for MotorCycleCompany Req’s for MotorCycle Sales & Marketing:
• need product in 24 months, • sale price competitive
Manufacturing• Produce 5,000 units per year• Use existing manufacturing plant
Financial• $300,000 R&D budget• minimum 20% RoI, 3 Year PayBack
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt18
Bruce Mayer, PE Engineering-11: Engineering Design
Generic Customer RequirementsGeneric Customer Requirements Function &
Performance• Functions and their
Priority
• Engineering characteristics– With units & limits
• Performance Targets
• Satisfaction Goals
• Size & Weight
• Power Use
Operating Environment• Air temp.
• Humidity,
• Elevation
• Corrosion (e.g. SeaWater)
• Shock & Vibration
• Cleanliness (e.g. Operating Room)
• Radiation, Other
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt19
Bruce Mayer, PE Engineering-11: Engineering Design
Generic Customer RequirementsGeneric Customer Requirements Other Issues
• Economic (Affordability)
• Geometry
• Maintenance
• Repair
• Retirement
• Reliability
Other Issues• Robustness
• Safety
• Pollution
• Ease of use
• Human Factors
• Appearance
Notice Focus on Function, NOT Form
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt20
Bruce Mayer, PE Engineering-11: Engineering Design
Generic Company RequirementsGeneric Company Requirements Marketing
• Total Available Market (TAM)
• Competition
• Sales Strategy
• Time to market
• Pricing
• Advertising
• Market Share
Manufacturing & Operations• Production quantity
• Processes, Materials
• New factory equip.
• Warehousing & dist.
• After Sales Support
• Warranty Support
• Returns & Repairs
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt21
Bruce Mayer, PE Engineering-11: Engineering Design
Generic Company RequirementsGeneric Company Requirements Financial
• Product Development Investment
• Cash Flow
• Return on investment (RoI)
• Return on Controllable Assets (RoCA)
Other• Regulations,
Standards, Codes
• Patents / intellectual property
• Company Image– e.g., a Pharmaceutical
Co. would not develop a Cigarette
• Product Liability
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt22
Bruce Mayer, PE Engineering-11: Engineering Design
Must all requirements be satisfied?Must all requirements be satisfied?
Requirements can be separated into:• NEED-to-Have items
– Product WILL FAIL in MarketPlace w/o these
– These “Must-Have” items Become “Constraints” on the Design
• Nice-to-Have items– Produce will be MORE COMPETITIVE w/ these
– These “Desirable” Features should be Weighted by “Importance-to-the-Market”Weighting is Typically a Marketing Engineering Fcn
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt23
Bruce Mayer, PE Engineering-11: Engineering Design
MotorCycle MotorCycle Importance Wts Importance Wts
Example of Customer importance weights by sub-function
Sub-function Weightstart engine quickly 15 %support rider(s) comfortably 10 %transport rider(s) fast 50 %steer bike easily 20 %absorb road shocks 5 %
TOTAL 100 %
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt24
Bruce Mayer, PE Engineering-11: Engineering Design
Translate MRS/MRD to EDS Translate MRS/MRD to EDS A CRITICAL Step Done by Senior
Marketing & Design/System Engineers How will we know when we have
designed a product that satisfies the customer? e.g.• Customer says, “I want a fast motorcycle.”
What does “fast” mean? Could it be:• 120 mph top speed?• 32 ft/sec2 (1 G) acceleration?• 150 Hz (9 kRPM) engine frequency?
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt25
Bruce Mayer, PE Engineering-11: Engineering Design
MotorCycle: Translation to EDS MotorCycle: Translation to EDS Sub-function
Engineering Characteristic
Units Limits
start engine quickly cranking time seconds ≤ 6 secs
support rider(s) comfortably
cushion compression inches
transport rider(s) fastacceleration top speed0-60 mph
feet/ sec2
mph/kphseconds
≥ 32 ft/s2
≥ 90 mph≤ 6 secs
steer bike easilysteering torqueturning radius
pound-ftfeet
Absorb road shocks suspension travel inches > 5 in.
Engineering Specs are Objective & Quantitative
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt26
Bruce Mayer, PE Engineering-11: Engineering Design
Engineering CharacteristicsEngineering Characteristics
Engineering Design Spec Elements are:
quantitiesquantities that that measuremeasure the the ““performanceperformance” ”
of a candidate design with respect to of a candidate design with respect to
specificspecific customer requiredcustomer required functionsfunctions
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt27
Bruce Mayer, PE Engineering-11: Engineering Design
MRS→EDS War-StoryMRS→EDS War-Story
Customer Needs for BPSG & USG Films for IC production
Then What it the Bubbler TEMPERATURE CONTROL Spec• This Question
Lead to the a22 Pg Paper:
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt28
Bruce Mayer, PE Engineering-11: Engineering Design
Customer Satisfaction Function(s)Customer Satisfaction Function(s) Usually Prepared by
MARKETING Engineers, NOT by Design Engineers• Large Amount of
JUDGMENT in Fcn Construction
• The Design Engineers may USE them to Guide Design Decisions
Tabular Function
Amount of satisfaction Value
Most satisfied 1.0
Very satisfied 0.9
Moderately satisfied 0.8
Somewhat satisfied 0.6
Hardly satisfied 0.3
Not satisfied 0.0
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt29
Bruce Mayer, PE Engineering-11: Engineering Design
Customer Satisfaction Function(s)Customer Satisfaction Function(s) Graphical Function for MotorCycle TopSpeed
1.0
15090
TopSpeed(mph)
Satisfaction
0.0
Shape of the Curve Depends on JUDGMENT
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt30
Bruce Mayer, PE Engineering-11: Engineering Design
2. Document UnderStanding in EDS2. Document UnderStanding in EDS The Engineering Design Specification is a
Quantitative listing of the critical parameters, specifications, targets and requirements for the product you are designing.
It is a statement of what the product should BE and should DO.
Detail is added as the design grows. The EDS is driven by customer needs. It is
intended to show WHAT you are trying to ACHIEVE, NOT what you will end up with.
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt31
Bruce Mayer, PE Engineering-11: Engineering Design
3. Choose a Solution Strategy3. Choose a Solution Strategy
1. list possible alternative solution strategies, for example: discontinue product, variant design,
original design, etc
2. estimate the expected benefits and the costs of each alternative
3. assess the risk of each alternative strategy
4. establish criteria to evaluate alternatives (e.g. benefits/costs, risk, Return on investment)
5. evaluate the alternatives
6. select the best alternative
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt32
Bruce Mayer, PE Engineering-11: Engineering Design
Formulation Produces StrategyFormulation Produces Strategy
Detail Design
Parametric Design
ConfigurationDesign
Detail Design
Parametric Design
Detail Design
Formulation
Concept Design
Detail Design
Parametric Design
ConfigurationDesign
variant design
selection design
originaldesign
partdesign
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt33
Bruce Mayer, PE Engineering-11: Engineering Design
4. Develop a Project Plan4. Develop a Project Plan
Will be Covered in Detail in Chp 14Concept
Definition & Planning
Development Pre-Production ProductionGo/No Go
Go/No Go
Go/No Go
Go/No Go
• Evaluate the market opportunity
• Clarify the product concept
• Assessstrategic fit
• Validate the opportunity
• Clearly define the product
• Fully plan the project
• Develop the product
• Develop production and support processes
• Plan the market introduction
• Transition the product to volume production
• Begin market introduction
• Ramp-up production
• Verify distribution and support processes
• Achieve stable operations
Sta
ge
Ob
ject
ives
Does the productwarrant further definition?
Does the productmeet customerneeds, and does itwarrant investmentin full development?
Does the productmeet expectationsand remain viablewithin the requiredtime frame?
Do test results andmarket introductionpreparationsdemonstrate launchreadiness?
Have projectobjectives beenachieved, and canthe Core Team bedisbanded?K
ey Q
ue
stio
ns
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt34
Bruce Mayer, PE Engineering-11: Engineering Design
5. Establish a Consensus5. Establish a Consensus
“Building In” the Consensus• Consensus is INTEGRAL To the Process
If all team members follow the previous five steps to a sound formulation, they will:• Have a common understanding of the “problem,”
• All Understand WHY,
• All Know WHAT has to be done and WHEN, and
• All Commit to WHO & HOW-MUCH
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt35
Bruce Mayer, PE Engineering-11: Engineering Design
Quality Quality What is it? What is it? TIME Magazine Survey responses
• Works as it should
• Lasts a long time
• Is easy to maintain
Garvin, Commenting on Eight Dimensions of Quality, Harvard Business Review, Nov/Dec 1987 Performance Reliability Serviceability Conformance to conventions/standards Perceived quality reputation of manufacturer
Features Durability Aesthetics
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt36
Bruce Mayer, PE Engineering-11: Engineering Design
All Done for TodayAll Done for Today
MotorCycleEngine
BluePrint
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt37
Bruce Mayer, PE Engineering-11: Engineering Design
Bruce Mayer, PERegistered Electrical & Mechanical Engineer
Engineering 11
AppendiAppendixx
QFD & QFD & HoQHoQ
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt38
Bruce Mayer, PE Engineering-11: Engineering Design
Quality Function Deployment, QFDQuality Function Deployment, QFD Quality Function Deployment (QFD)
• Team based visual, connective process
• Focuses on customer needs throughout entire product development process
QFD is a systematic process • Helps identify customer desires and to “deploy” them
through all functions and activities of the organization
House of Quality (HoQ) • Use of large visual displays or diagrams to
– Focus decision making interactions of multifunctional teams
– Visually display relevant information for ready reference
– Document decisions in a graphical Form
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt39
Bruce Mayer, PE Engineering-11: Engineering Design
Quality Function Deployment, QFDQuality Function Deployment, QFD Team discussions and research results
summarized in House of Quality (HoQ) diagrams • Product
• Part
• Process
• Production information
Representatives from all parts of company involved in creating and refining HoQ diagrams
Desire to achieve high level of consensus
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt40
Bruce Mayer, PE Engineering-11: Engineering Design
HoQ for Product PlanningHoQ for Product Planning
Systematic, graphic representation of product design information
Organized as matrix of rooms with roof and basement
HoQ diagram is not the real value • Real value is in the
discussion and consensus acquired while constructing the diagram
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt41
Bruce Mayer, PE Engineering-11: Engineering Design
HoQ for Product PlanningHoQ for Product Planning Team gathers information related to product
design • Customer requirements
• Customer importance weights
• Engineering characteristics (technical specifications)
• Correlation ratings of requirements & characteristics
• Benchmark satisfaction ratings
• Coupling between technical specifications
• Benchmark performance values
• New product design target values
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt42
Bruce Mayer, PE Engineering-11: Engineering Design
HoQ FloorPlanHoQ FloorPlan
1C
usto
mer
Req
uir
em
en
ts 2
Imp
ort
an
ce W
eig
hts
3Engineering Characteristics
5B
en
ch
mark
Sati
sfa
cti
on
Rati
ng
s
8Coupling
4Correlation
Ratings
6Benchmark Performance
7New Product
Performance Targets
Group method Encourages
discussion Forces
agreement between team members
Structures information
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt43
Bruce Mayer, PE Engineering-11: Engineering Design
HoQ for Product PlanningHoQ for Product Planning Room 1 Customer requirements
• Summarized in rows of 1st column • Clear list of functions and sub
functions from customer’s view point • Customer wording used to express
voice of the customer • Contains only most important
requirements (usually less than 25) Room 2 Customer importance weights
• Adjacent to customer requirements column • Use values between 0.0 and 1.0 (0-100%)• Importance weights sum to 1.0 (100%)
1Cus
tom
erReq
uire
men
ts
2Im
port
ance
Wei
ghts
3Engineering Characteristics
5Ben
chm
ark
Sat
isfa
ctio
nRat
ings
8Coupling
4Correlation
Ratings
6Benchmark Performance
7New Product
Performance Targets
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt44
Bruce Mayer, PE Engineering-11: Engineering Design
HoQ for Product PlanningHoQ for Product Planning Room 3 Engineering Characteristics (TS)
• Top row underneath roof triangle • List of quantitative performance factors with units • Arranged in a row vector • Quantifies the customer satisfaction for each
customer requirement Room 4 Correlation ratings matrix
• Cells at intersections of rows and columns indicate the amount of correlation between the requirements and specifications
• Use for positive correlation – 1 ≡ low, 3 ≡ medium, 9 ≡ high
• Use for negative correlation – −1 ≡ low, −3 ≡ medium, −9≡high1
Cus
tom
erReq
uire
men
ts
2Im
port
ance
Wei
ghts
3Engineering Characteristics
5Ben
chm
ark
Sat
isfa
ctio
nRat
ings
8Coupling
4Correlation
Ratings
6Benchmark Performance
7New Product
Performance Targets
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt45
Bruce Mayer, PE Engineering-11: Engineering Design
HoQ for Product PlanningHoQ for Product Planning Room 5 Benchmark satisfaction ratings
• Right of correlation matrix • Customer ratings for competitive products
for satisfaction of each requirement • Include own current products if any • Ratings between 0.0 and 1.0
Room 6 Benchmark performance • Below of correlation matrix • Rating for each benchmark product with respect to
the Technical Specs (TS) in Room 3 Room 7 New product targets
• Below benchmark performance in the basement • List performance targets for new product
1Cus
tom
erReq
uire
men
ts
2Im
port
ance
Wei
ghts
3Engineering Characteristics
5Ben
chm
ark
Sat
isfa
ctio
nRat
ings
8Coupling
4Correlation
Ratings
6Benchmark Performance
7New Product
Performance Targets
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt46
Bruce Mayer, PE Engineering-11: Engineering Design
HoQ for Product PlanningHoQ for Product Planning Room 8 Coupling matrix
• Roof triangle
• Values to estimate coupling or interaction between technical specifications – For positive correlation:
1 ≡ low, 3 ≡ medium, 9 ≡ high
– For negative correlation: −1 ≡ low, −3 ≡ medium, −9≡high
• Uncoupled specifications can be optimized one by one
• Inversely coupled specifications require compromises (strong but light)
1Cus
tom
erReq
uire
men
ts
2Im
port
ance
Wei
ghts
3Engineering Characteristics
5Ben
chm
ark
Sat
isfa
ctio
nRat
ings
8Coupling
4Correlation
Ratings
6Benchmark Performance
7New Product
Performance Targets
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt47
Bruce Mayer, PE Engineering-11: Engineering Design
Example Example HoQ HoQ
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt48
Bruce Mayer, PE Engineering-11: Engineering Design
PencilPencilSharpenerSharpenerHoQHoQ
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt49
Bruce Mayer, PE Engineering-11: Engineering Design
QFD method uses cascading QFD method uses cascading Houses of QualityHouses of Quality
CustomerRequirements
PartCharacteristics
EngineeringCharacteristics
ProcessCharacteristics
ProductPlanning
Part Design
ProcessPlanning
ProductionPlanning
ProductionCharacteristics
Voice of the customer
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt50
Bruce Mayer, PE Engineering-11: Engineering Design
EDS Example ElementsEDS Example Elements These Items Might appear in an EDS Intended market Product cost(s) Operating
environment Engineering
performance Product operators
users Ergonomics
User interface Dimensions Weight Materials Product life Service life Storage shelf life Reliability Mean time to failure
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt51
Bruce Mayer, PE Engineering-11: Engineering Design
EDS Example ElementsEDS Example Elements
This List is NOT Exhaustive
Disposal / Reuse Assembly Installation Regulatory
environment (federal, state, local)
Patent infringement Safety
Test protocol Product liability Intended market Packaging Shipping and
storage Overall “look” (buyer
perception)
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt52
Bruce Mayer, PE Engineering-11: Engineering Design
2001 SIA Industry RoadMap2001 SIA Industry RoadMapYear Unit 1993 1995 1999 2001 2003 2005 2008 2011 2014 2016
Feature Size microns/nm 0.50 0.35 180 130 100 80 70 50 34 22
Internal Clock (high performance)
Mhz/Ghz 200 300 750 1.68 2.31 5.17 6.74 11.5 19.3 28.7
Logic transistors million/cm2 2 4 6.6 13 24 44 109 269 664
Microprocessormillion
transistors/chip
5.2 12 23.8 47.6 95.2 190 539 1523 4308
DRAM size Mbit/Gbit 16 64 256 512 1 2 6 16 48
SRAM size Mbit/Gbit 1 4 16 64 256
Voltage Vdd 5 3.3 2.5 1.2 1.0 0.9 0.7 0.6 0.5 0.4
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt53
Bruce Mayer, PE Engineering-11: Engineering Design
MRS/MRD DetailsMRS/MRD Details Introduction Describe briefly why the product is being considered, this could also be an objective for the product.
One paragraph. Overview Include a brief description of the product and requirement. One to four paragraphs. Target Market Describe who the customer is for this product, why do they need it, and what is unique about their
requirement. It may be desirable to discuss market size here. Use numbers from analysts for a general market size.
Detail in this section may not be necessary for a new version of an existing product unless the new version will help target a new market segment.
Competition List all competitors, how they answer this need and how this product will be differentiated from the
competition. Provide any implementation detail that you can on how a competitor has implemented a similar feature and the pros and cons of that implementation.
Desired Characteristics This is the primary information of the market requirements document. Make the first paragraph a
general description of the product. Required Features List and describe all features that are required for the product to address the customers’ needs and be
competitive. Desired Features List and describe all features that would be nice to have in the product but are not required in the first
release.
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt54
Bruce Mayer, PE Engineering-11: Engineering Design
MRS/MRD DetailsMRS/MRD Details Estimated Development Costs List the estimated costs of this product in terms of development time, licensing
components, or equipment required to build the product (useful for both hardware and software). This may or may not be required in your company to have a project approved. Will require input from engineering.
Estimated Product Life How long will this product be on the market. When should it be replaced by a new product
or version? Distribution Use this section if this product will not be distributed through the company’s usual
channels. If the product is software, list whether it will be available as a download off the web site.
Configurations Use this if there are multiple configurations desired. Licensing Requirements If you are building a software product, describe the requirements for software licensing.
Describe how customers will obtain the product and how the licensing (if any) will restrict them from making illegal copies.
Manufacturing Use this section to describe any special manufacturing considerations or requirements.
Provide an estimated bill of materials (a list of everything that will be packaged with the product). This section may require input from Manufacturing if it is a hardware product.
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt55
Bruce Mayer, PE Engineering-11: Engineering Design
MRS/MRD DetailsMRS/MRD Details Packaging For both software and hardware, describe how the product will be packaged. Maintenance This section is used (primarily for a hardware product) to describe any special maintenance
requirements. May require input from customer service. Documentation Describe the types of documentation that are required including installation instructions, user manuals,
administration manuals, quick start guides and tutorials. Specify whether the documentation will be on-line or hard copy.
Forecast/Cost Estimate the sales for the product. This is required for cost justification as well as for forecasts for
inventory of product and or manuals. For hardware products you will need to estimate the preliminary costs of the product. For a software
product you will need to estimate any potential royalties. In some companies, management wants the product manager to figure out the development costs of a
product. If this is required, you will need to work closely with the finance department and the VP of Engineering to accurately estimate those costs.
Impact on Other Products Use this section if this product will impact sales of or replace other products. Finance and sales will
need this information for forecasting purposes. Preliminary Schedule This will require input from engineering. It is needed for other departments to understand when the
product will be available.
[email protected] • ENGR-11_Lec-10_Chp3_Fomulate_DesignProb.ppt56
Bruce Mayer, PE Engineering-11: Engineering Design
In 10 min In 10 min Discuss “Quality” Discuss “Quality”