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ME2024 - Test 2
ME2024 test 2
18
Engineering
Undergraduate 2
10/29/2007

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Cards

Term
Concept Testing Formats:
Definition
face to face, telephone, email, postal survey, internet
Term

Concept Testing:

Ways to Communicate the Concept -

Definition
verbal description, video, storyboard, simulation, working prototype, interactive media/model renderings and sketches
Term

Product Architecture:

 Functional elements-- 

Definition
individual operations or transformations that contribute to the overall performance of the product
Term

Product Architecture:

 Physical Elements-

 

Definition
Parts, components and subassembelies that ultimately implement the products functions
Term

FMEA-

What is it? 

Definition

Failure Modes Effects and Analysis




began in Aerospace industry, now mainly in automobiles,

used to anticipate and prevent failures from occuring 

Term
FMEA is most effective:
Definition

when it occurs before the design

 

should focus on prevention not detection 

Term

FMEA

2 types of FMEA: 

Definition

Design FMEA - examines functions of the system

 ex: inappropriate specifications

 

 

 

Process FMEA  - examines the process used to create the components

  ex: improper assembly, or variation in parts 

Term
RPN
Definition

Risk Priority Number - it identifies the greatest areas of concern

Assesses:

Occurance

Severity

detection of failure 

 

RPN = Severity x Occurance x detection

Term
Concept Testing used for:
Definition

-Go/ no go decisions

-choosing market

 -benchmarking

-forecasting demand

-concept selection among alternatives 

Term
Concept Testing Process -
Definition

1. Define purpose of the test

2. Choose a survey population

3. Choose survey format

4. Communicate the concept

5. Measure customer response

6. Interpret results

7. Reflect on results and process 

Term
Suvey format:
Definition

1. Qualification

2. Product Description

3. Purcahse intent

4. Comments 

Term
Forecasting Sales
Definition

Q = NAP

Q=sales

N= number of purchases

A=awareness*availibility

P=probability of purchase 

Term
Probability
Definition

P = Cdef*Fdef + Cprob*Fprob

 

C= from competitors

Fdef and F prob from survey 

Term
Modular Architecture:
Definition

-chunks implement one or a few chunks

-interactions are well defined

 

Advantages:

simplicity

reusability 

Term
Integral Architecture:
Definition

-multiple chunks, and chunks may perform many functions

-poorly defined

 

Advantages:

low cost, high performance 

Term
Three levels of architecture:
Definition

system

subsystem

components

Term
Architecture determines:
Definition

-ease of product variation

-feasibility of customer modification 

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