Tools and Artifacts23% of the exam
Desirability, viability, feasibility and concept prototypes
How to judge solution concepts through the desirability, viability and feasibility lenses with a comparison chart, who supplies the evidence for each lens, and how to turn assumptions and what-must-be-true conditions into prototype questions answered at the right fidelity.
Given a customer scenario, determine the criteria for feasibility, desirability, and viability within a user experience.
~8 min read · 22 practice questions ·
What the exam expects
- Sort evidence and questions into desirability, viability or feasibility, and name who supplies each kind of evidence.
- Use comparison-chart questions to expose the merits and trade-offs of each concept.
- Turn assumptions and "what would have to be true" conditions into prototype questions, and prototype the biggest risk first.
- Pick the right research type and prototype purpose (ideation, exploration, validation) for where the project is.
- Describe prototype fidelity by dimension, including mixed fidelity.
Key terms: desirability (what is valuable to the user); viability (what is valuable to the business); feasibility (what is technically possible); prototype (an experiment purpose-built to answer a specific question); fidelity (how closely a prototype conveys the intended experience of the final product).
Key facts
Desirability
- Detail
- What's valuable to the user; check against earlier research insights
Viability
- Detail
- What's valuable to the business; consult business analysts
Feasibility
- Detail
- What's technically possible; share ideas with developers or architects
Scalability
- Detail
- A feasibility question: can the concept scale with the platform as use grows?
Prototype levels
- Detail
- From high-level strategic questions to tactical and experiential ones
Exploration research focus
- Detail
- Desirability and feasibility, to mitigate risk
Three prototype uses
- Detail
- Ideation, exploration, validation
Fidelity dimensions
- Detail
- Form, aesthetics, content, behavior; can be mixed
First prototyping question
- Detail
- What are you trying to learn?
Sources for this section (4)
- Analyze and Narrow Solution Conceptstrailhead.salesforce.com (opens in a new tab)
- Salesforce Platformwww.salesforce.com (opens in a new tab)
- Explore Key Prototyping Considerationstrailhead.salesforce.com (opens in a new tab)
- Understand the Role of Research in Design Strategytrailhead.salesforce.com (opens in a new tab)
- Why does a prototype often beat a written explanation of a concept?
- When should prototypes reach higher fidelity?
- What kinds of things can a prototype answer questions about?
- Why create many early prototypes rather than one?
The questions are free to read. Answers with their sources and self-grading are included with the pack.
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