lean ux sf november meetup - concurrent set-based design

LEAN UX SF

Agenda

•Lightening talk

•Fishbowl

•Design Charrette

Concurrent Set-Based Design

Concurrent Set-Based Design

•Map the design space

•Integrate by intersection

•Establish feasibility before commitment

StylingMarketing

Body ChassisManufacturing

Traditional Point-Based Approach to Product

Development

Point-Based Concurrent Engineering

Design Solution(Styling)

AnalyzeandCritique

Modify

Marketing

Body

Chassis

Manufacturing

Set of Product Design Possibilities

Set of Manufacturable Product Designs

Map the Design Space

DESIGN ENGINEERING

MANUFACTURING“We’ve come up with several designs that would meet our functional requirements. They roughly look like this.”

“Our manufacturing capabilities are best suited for designs with these characteristics.”

Define feasible regions.

Explore trade-offs by developing multiple

alternatives.

Communicate sets of possibilities.

Integrate by Intersection

DESIGN ENGINEERING

MANUFACTURING“Great. We will work within these limits and keep you posted on developments.”

“OK. We can handle any solution in that set. This is enough information to order tool steel and start process planning.”

Look for intersections of feasible sets.

Impose minimum constraint.

Seek conceptual robustness.

Establish Feasibility Before Commitment

DESIGN ENGINEERING

MANUFACTURING

“We’ve narrowed the possibilities to this set and also fleshed out some more of the detail.”

“Looks good. Your set is still within our capabilities. We have some minor design changes to request, then we’ll order castings.”

Narrow sets gradually while increasing detail.

Stay within sets once committed.

Control by managing uncertainty at process

gates.

“If there’s only one solution and we have not established what it will cost to produce, then the set is too small.”

Set of Product Design Possibilities

Set of Manufacturable Product Designs

Convergence

Focus on convergence, rather than tweaking a good

idea to optimize it.