Project: Design Alternatives 10/24 Name(s) Project RB Johnson - - PowerPoint PPT Presentation

Project: Design Alternatives 10/24

Name(s) Project RB Johnson & Derek Klatt Knight Quest Jason Leung, Ian McNelly & Patrick Walmsley Free the Source: Software License Tracker Paul Telesca & Courtney Webster Audio Player GUI Timothy Best & Erick Klymkow Psychology PYCTS Hannes Granstrom & Cory Shutz Clarkson Course Enrollment Andrew Bodine & Daniel Lavine Wall Off UI

2.

• 2. Devel

eloping ping alt lternat native ive desig igns ns

Iteration 2:

• Refine first iteration, gather data, make improvements
• Presentation: due Monday, 10/22
• Brief overview of project, including usability goals,

user experience goals, primary persona

• Show 3 alternative designs, with strengths and

weaknesses

• Slide at end showing all 3 designs
• Portfolio: due Friday, 10/26
• Include everything from first iteration, plus
• Updated report (not just new part)
• Helpful to incorporate slides from presentation
• Appendices include data, sketches, etc.

1.

• 1. Identifying

tifying needs ds and establ ablishing ishing requirem irements ents 2.

• 2. Devel

eloping ping alt lternat native ive desig igns ns 3.

• 3. Buil

ildi ding ng in interac activ tive e version ions s of the designs igns

• 4. Evaluating designs

Next Phase: Iteration 3

Most techniques used to evaluate concepts involve:

• 1. Selecting criteria
• 2. Assigning weighting factors
• 3. Developing a rating scale
• 4. Constructing a decision making structure
• 5. Determining the best design alternative

Aluminum Can Crusher:

Design a simple device to crush aluminum cans.

Solution:

A design team develop six criteria that are important to a successful design. The team agrees that the most important criteria (or desirable attributes) of the design and assigned weights are: ■ Safety: 30 percent (30 points) ■ Ease of use: 20 percent (20 points) ■ Portability: 20 percent (20 points) ■ Durability and strength: 10 percent (10 points) ■ Use of standard parts: 10 percent (10 points) ■ Cost: 10 percent (10 points)

Aluminum Can Crusher: Design a simple device to crush aluminum cans. Solution, continued: The design team also proposes four alternative solutions to this problem, as shown on the following slide:

• 1. A spring-loaded crusher
• 2. A foot-operated device
• 3. A gravity-powered dead weight crusher
• 4. An arm-powered lever arm crusher