Principles of Biomedical Technology (Principles of Biomedical Science)
Unit 3: Unit 3.2 to 3.3 Surge & Public HealthPBS 3.2-3.3Biotechnology Research and Experiments

Apply Usability Principles

Use evidence and design criteria to apply usability principles.

Builds on (2 levels back)inferred · high confidence
  • Criteria and constraints: Design work needs success targets and limits before testing.
  • Evidence-based iteration: Changes should trace to data, feedback, or a failed criterion.

Prerequisites are inferred: pending teacher review.

Re-learn the skill with worked practice and clear examples.

Use evidence and design criteria to apply usability principles.

Step 1: Learn the key
Start with the user [blank], define criteria and [blank], test the prototype, then [blank] from evidence.
Design Cycle instructional diagram
Step 2: Use the model
Read the figure, table, control, range, or protocol before choosing an answer.
Step 3: Name the limit
Say what the evidence can support and what it cannot prove yet.
Practice

Use the design cycle figure. Which sequence is evidence-based?

Reviewed
Design Cycle instructional diagram
  1. A.Need -> criteria -> test -> revise
  2. B.Revise -> hide data -> guess -> submit
  3. C.Prototype once and never test
  4. D.Choose color before need
Show the worked solution ▾

Answer: A. Need -> criteria -> test -> revise

  1. Step 1: Read the cycle: The figure shows need, criteria, test, and iterate.
  2. Step 2: Use evidence: Revision comes after testing.

Why it's right: This sequence uses test evidence to revise.

Why the others miss:
  • B: Hiding data is not design.
  • C: Testing is required.
  • D: Need comes before color choices.

Aligned to Biotechnology Research and Experiments · reading level ~grade 9

Where you'd see this
  • In Unit 3.2 to 3.3 Surge & Public Health, this skill turns class evidence into a result another person can check.
Video library
Watch: Apply Usability Principles
Usability 101
NNgroup · 3:46
Guided notes

Fill these in as you work through the lesson.

Big idea: Use evidence and design criteria to apply usability principles.
Key terms: write the meaning
  • Criterion (what success must do):  
  • Constraint (limit on solution):  
  • Prototype (testable early version):  
  • Iteration (revision based on evidence):  
The rule

Start with the user  , define criteria and  , test the prototype, then   from evidence.

Check yourself
  1. What user need is being solved? 
  2. What criterion or constraint is shown? 
  3. What evidence tells you to revise? 
Work one example

Use a prototype test result to practice apply usability principles with a criterion, constraint, and next step.