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

Project: Design Alternatives 10/24

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

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