boulder hf/ux design workshop - meetupfiles.meetup.com/17838642/boulder hf_ux design...

DESIGN WORKSHOPBOULDER MED TECH HF/UX MEETUP

Medical Technology UX/HF Meetup #MedTechHF

Upcoming: Meet 2nd Wednesday of every month, 6p @ Panera Panel Discussion (in collaboration with Rocky Mnt HFES) Presentations by local experts

Hosted by: Shannon Halgren, PhD Sage Research & Design @Sage_Research

BOULDER MED TECH HF/UX MEETUP

TONIGHT’S DESIGN PROJECT

▸ Background

▸ Anxiety affects 40M American adults a year—18% of the population— causing inefficiencies in the workplace and a reduced sense of life satisfaction.

▸ Source: National Institute of Mental Health, 2015: http://www.nimh.nih.gov/health/statistics/prevalence/any-anxiety-disorder-among-adults.shtml

▸ Serotonin is a neurotransmitter primarily found in the gastrointestinal tract, blood platelets, and the central nervous system of animals, including humans.

▸ Reduced levels of serotonin have been linked to symptoms of anxiety within humans.

▸ A break-through optical-based technology has been devised by MellowTech to measure levels of serotonin in the brain using minute volumes of saliva.

▸ Business Opportunity

▸ The ability to quickly and inexpensively measure levels of serotonin in adult patients offers the chance to intervene in a timely manner, reducing anxiety and the consequential effects.

http://www.nimh.nih.gov/health/statistics/prevalence/any-anxiety-disorder-among-adults.shtml



▸ Requirements:

▸ Hand-held medical device for home use by teenagers and adults

▸ Requires no more than 100ul of saliva

▸ Simple and ‘error-resistant’ operation for untrained operators (CLIA-waived medical device)

▸ No-text, should be a graphics-rich UI

▸ Minimal 4 step process

▸ Insert test strip into device

▸ Tongue-touch saliva sample onto test strip

▸ 30 second to displayed result

▸ Eject & dispose of test strip (avoid cross-contamination)

▸ Results should be displayed as a single number, 0-99 'sero-units’, 50 sero-units is the threshold below which the level is considered ‘clinically low’

▸ Device can also display historic data (30 days) for trending purposes



▸ More Requirements:

▸ Sealed-in rechargeable battery with 8 hour capability at 20% duty cycle, ‘wall-wart’ power supply

▸ Unit cost to consumer: $40 (Cost of goods sold, COGS<$10)

▸ Cost per test to consumer: $1 (COGS< $0.10)

▸ Units to be sold in US, Canada, and Japan only for initial launch)


USER-CENTERED DESIGN PROCESS

NISTIR 7741: NIST Guide to the Processes Approach for Improving the Usability of Electronic Health Records


RESEARCH (OR KNOW THY USERS)

▸ Who is going to use this?

▸ Consider: Age, Sex, Education, Medical Conditions, Limitations

▸ Where are they going to use this?

▸ Consider: Environment, Other People

▸ How are they going to use this?

▸ Consider: Frequency of use, workflow, where they store the device it when not in use


RESEARCH TECHNIQUES

▸ Observations / Contextual Inquiries

▸ Interviews

▸ Focus Groups

▸ Customer Feedback / Complaints

▸ Surveys

▸ Marketing Data / Competitive Analysis


RESEARCH

▸ Next 20-30 minutes

▸ But first meet Timmy, Sam, and Eleanor…


DESIGN GOALS / REQUIREMENTS

▸ Safety - ex. the product won’t hurt the patient

▸ Efficiency - ex. the user can meet their goal in under 5 tasks/steps

▸ Learnable - ex. the user can accomplish task A after 10 minutes of training

▸ Error Free - ex. 80% of users can complete task A without making a mistake

▸ Memorable - ex. the user can use it a 2nd time without making a mistake

▸ Satisfaction - ex. the user says the product is enjoyable to use


DESIGN PRINCIPLES

▸ Patient Safety first

▸ Know who you are designing for

▸ Keep it simple

▸ Make it easy to learn

▸ Prioritize the data and tasks

▸ Be consistent

▸ Make it so users want to use the product

TEXT

SET YOUR USABILITY GOALS AND DESIGN!!!

▸ For the next 30 minutes

TEXT

DESIGN EVALUATION/TESTING

▸ Have you met your design goals?

▸ Is it usable for the target users?

▸ Where could the design be improved?

TEXT

USABILITY TESTING

▸ Plan what you want to evaluate

▸ Which tasks are the most critical?

▸ Write down a script to test those tasks

▸ Identify and recruit the target users to test the product with

▸ Do a practice run

▸ Test!

TEXT

USABILITY TEST YOUR DESIGNS

▸ Conduct your test and update your designs for the next 45 minutes

TEXT

PRESENTATIONS

▸ Show us what you got!

▸ 5 - 10 minutes each

boulder hf/ux design workshop - meetupfiles.meetup.com/17838642/boulder hf_ux design...

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