W' Farrow

1
1 Identify the need
2 Define problem
10 Communication
3 Search
9 Specification
The Design Process
4 Constraints
8 Decision
5 Criteria
7 Analysis
6 Alternative solutions
2
Identify Need

• Clarify Need
• Clarify goals for success

3
Define Problem

• Identify obstacles to success
• Broadly define at first
• Seek causes rather than symptoms
• Use symptoms to identify causes

4
Search

• Seek out sources of information
• Existing solutions
• Places to turn to
• Internet
• Library
• Government documents
• Professional organizations
• Trade journals and catalogs
• Experts

5
Constraints

• Limits to Design Space
• Cost
• Time
• Size
• Etc.

6
Criteria

• Desirable characteristics

• Cost
• Reliability
• Weight
• Ease of
• operation
• maintenance
• Appearance

• Compatibility
• Safety issues
• Noise level
• Effectiveness
• Durability
• Feasibility
• Acceptance

7
Alternative Solutions

• Brainstorm
• Possible and Impossible solutions
• Document all ideas
• Ideas that may seem ridiculous may contain the
  seed for a terrific solution

8
Analysis

• Apply engineering techniques to analyze
• Physical properties
• Cost
• Human interface
• Practicality

9
Decision

• Use criteria to identify choice
• Final choice may combine pieces of individual
  solutions

10
Specification

• Specifications
• Describe solution in best form(s)
• Graphically
• Numerical measurements

11
Communications

• Report on final solution
• Written / Presentation
• Include not only final solution, but how it was
  achieved
• May need to supply different forms based on needs
  of your audience
• Level of detail appropriate for audience

12
1 Identify the need
2 Define problem
10 Communication
3 Search
9 Specification
The Design Process
4 Constraints
8 Decision
5 Criteria
7 Analysis
6 Alternative solutions