2. PRODUCT
PRODUCT- any device or system that is designed and
produced for use by a customer
CUSTOMER-Person who ultimately buys the product
Another person in your company who may use the device
you design
Think broadly about who the customer is (who does the
product affect)
Chief objective of product design - Satisfying the customer(s)
2
3. WHY STUDY THE DESIGN PROCESS?
Continuous need for new, cost effective, high
quality products
Today’s products are complex and require a team
of people with different backgrounds to take an idea
from concept to market
~85% of problems with new products not working
as intended, taking too long to bring to market, or
costing too much are the result of a poor design
process 3
4. MEASUREMENT OF THE DESIGN PROCESS
Product Quality – How good is the product
Product Cost – What is the manufacturing cost
Development Time – How quickly was the product
developed
Development Cost – How much was spent to
develop the product
Development Capability – can the team be better
able to develop future products
4
5. 3 MEASURES OF DESIGN
Cost
Quality
Time
Duration may vary from 1 yr to 10yrs or greater
5
6. DESIGN AND DEVELOPMENT TEAM
Marketing
Design
Mechanical
Electrical
Software
Industrial
Manufacturing
Operations
Warehouse
Supply Chain
6
7. DEVELOPMENT AND DESIGN PROCESS
Phase 0: Planning – Begins with the strategy and
assessment of technology developments and market
objectives
Phase 1: Concept Development – Identify target market,
alternative product concepts generated and evaluated
Phase 2: System-level Design – Definition of the
product and break-down into subsystems and
components
7
8. DEVELOPMENT AND DESIGN PROCESS
Phase 3: Detail Design – Complete specification of
the geometry, material, tolerances and
manufacturing details
Phase 4: Testing and refinement – Prototype
evaluation and assembly testing. Utilizes prototype
tooling
Phase 5: Production Ramp-up – Completion of
production tools and process to implement
manufacturing process as well as train workforce
(work out the kinks)
8
9. DEVELOPMENT STEPS
Step #1: Identify Need
Two sources: the market (market-pull), or the development of a new technology
(technology push)
Step#2: Plan for the Design Process
Planning involves simply deciding on how to allocate the company’s resources of
people, money, time, and equipment to complete the design tasks.
Step #3: Develop Engineering Specification
Goal is to completely understand the problem
Three steps:
1)identify customers
2) generate customer requirements
3)develop engineering specifications
Step #4: Develop Concepts
Based on customer requirements and engineering specs.
Multiple concepts may be evaluated by comparing the concepts generated to the
specifications developed. Goal is to select the best concepts for refinement into
products.
Step #5: Develop Product
Starting a project with a single conceptual design in mind, without concern for the
earlier phases, is poor design practice and leads to poor-quality products.
As products are developed, the are evaluated for manufacture, assembly, behavior,
and cost.
9
10. DEVELOPMENT STEPS (CONT)
During each stage of the design process, we must be able to
communicate the information to others (recall concurrent design).
Design Notebook
Communication with management/customers (possibly during design
reviews)
Make it understandable to the recipient.
Carefully consider the order of presentation:
Present the whole concept or assembly and explain its function
Describe the major parts and how they relate to the whole and its function
Tie the parts together into the whole
Be prepared with quality material:
10
11. Have good visual aids and written documentation
Follow an agenda
Be ready for questions beyond the material presented
Documents communicating the final design
Drawings (or computer data) of assemblies and details.
Written documentation to guide manufacture, assembly,
inspection, installation, maintenance, retirement, and quality
control.
11