“Switching on my ears” a case study: Designing a hand held device for bionic implant recipients
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“Switching on my ears” a case study: Designing a hand held device for bionic implant recipients

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Designing a physical hand-held device presents a number of unique challenges. Designing that device predominantly for use by folks with impaired physical abilities introduces another layer of ...

Designing a physical hand-held device presents a number of unique challenges. Designing that device predominantly for use by folks with impaired physical abilities introduces another layer of complexity. Ensuring that the experience is appropriate for an audience ranging from five year-old kids to ninety five year-old retirees while they control one of their primary senses is just downright difficult.

Matt & Shane recently worked with Australian innovator and international success story Cochlear in design of a new device to help bionic ear implant recipients monitor and control their hearing. The design represented an evolution to a simpler more usable second-generation device.

Matt & Shane are joined by Cochlear Technical Product Lead (and some time “User Fairy”) Rami Banna as they walk through key aspects of this project.

Particular attention is given to:

Design artefacts including wireframes and screen mock-ups illustrating the evolution from early design concepts through to refined user interface.
The full UX lifecycle including; ethnographic research, iterative interaction design cycles and usability testing with real Cochlear implant recipients.
The approach taken to coordinate a design exercise across multiple teams including; industrial design, ergonomics, electronics, software design, graphic design and small screen user interface design.
The delicate balance required when attempting to improve a user experience without completely confounding the expectations of a large and vocal existing user-base.
The objective of this case study is to provide conference delegates with genuine insight into the design process by exposing the methods but also by showing the actual designs at various points of their development.

Along the way, we will detail the pitfalls encountered and outline the practical solutions that were applied. Processes and lessons learned are applicable across UX projects of all types, not just mobile and hand-held product design projects.

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  • Some features are more important for secondary users: turning on lights, monitoring4th Persona Frieda – show the Frieda persona move to the right to show another dimension (kylie too).

“Switching on my ears” a case study: Designing a hand held device for bionic implant recipients “Switching on my ears” a case study: Designing a hand held device for bionic implant recipients Presentation Transcript

  • Switching on My Ears
    A case study: Designing a hand held device for bionic implant recipients
    Matt Morphett
    matt@amberdew.com.au
    twitter: @mattmorphett
    Shane Morris
    shane@automaticstudio.com.au
    twitter: @shanemo
    Rami Banna
    RBanna@cochlear.com
  • Rami 1 – Cochlear
    The extent of hearing loss
    14 in 1,000 adults (>16 years) are severely to profoundly deaf.
    80 in 1,000 elderly adults (>70 years) are severely to profoundly deaf.
    “We” have treated < 5% of prevalence
  • Cochlear™
    Original creators and developers of multichannel cochlear implant technology
    Commitment to hearing innovation
    Over 230,000 Cochlear and Baha recipients worldwide
    Partner with researchers in 19 countries and more than 1000 clinics around the world
    R&D investment – $AUD 100 million in 2009.
    #1 choice of cochlear implant recipients1
    Baha® successfully used for >30 years
    1. Hearing Aid Market Report 2010 Koncept Analytics
  • - Bernard Coen – FOX News Presenter, 40 Years
  • How does it work?
    Nucleus CP810sound processor
    Nucleus CI512cochlear implant
    NEWNucleus CR110remote assistant
    Custom Sound™ Suite 3.0
    Cochlear™ Nucleus® 5 System
  • Limits to Growth?
    Large install base
    +
    Projected growth
  • Limits to Growth?
    Before Implantation
    After Implantation
    Surgeon
    CI Audiologist
    CI Audiologist
  • Limits to Growth?
    Before Implantation
    After Implantation
    Home
    Surgeon
    CI Audiologist
    CI Audiologist
  • The Switch-On
    http://youtu.be/YWe6iJmHKUE
  • The Business Requirement
    Existing Requirements
    Suit Wide Range of Users / Hearing Configurations
    Cater For Many More Features Than There Are Buttons
    Be Smaller Than a Mobile
    More Useful Than a Credit Card Sized Remote
    New Requirements
    • Demonstrably (testably) Better Than Existing UI
    • Minimise Change Management
    • Maintain Backwards & Sideways Compatibility
    • Establish Extensible Platform – Start With Scalability Suite
    ?
  • Deliberately Unstructured Research
    Recipient Appointments With Audiologists
    Sat in on Clinical Trials With CI Recipients
    • Cochlear Implant Forums & Blogs
    • Followed Twitter Accounts for the Deaf Community
    • Downloaded iPhone Rehabilitation Apps
    • Wore the Cochlear Test Rig Around for a Day
    • Spoke to the Support-Line Manager
    • Looked Outside the Industry
    • Undertook Usability Testing
    • Taught Preschoolers About Cochlear Implants.
  • Who Are Our Users?
    Timid
    Adventurous
    Primary Personas
    Elderly
    Adult
    Young Person
    Secondary Personas
    • Parents
    • Carers
    Tertiary Personas
    • Clinicians
  • What Do Users Need To Do?
    Adjust their hearing
    Select a Program
    Change Volume
    Telecoil
    Check that everything is OK
    • Battery levels
    • Sound coming in
    • Identify / Troubleshoot Issues
    Establish their own hearing configuration
    …. + Dozens of other things
  • Taking Cues
    Bespoke Mobile Device
    Battery
    Websites
    Amazon, Xero, etc.
    Screen
    Comms
    Best Practice
    Wroblewski, Nielsen, Tidwell
    Butt.
    Butt.
    Web Standards
    HTML / CSS
    Dynamic Web
    The Web UX Stack
    W3C etc.
    Fields, RBs, Dropdowns, etc.
    Javascript, Flash, etc.
    Butt.
    Browser
    Back, Next, Scrolling, etc.
    Functions
    Electronics
    Butt.
    Butt.
    Butt.
    OS
    GUI Guidelines
    Reqs.
    Hardware
    Butt.
    Butt.
    Mouse & Keyboard
    Butt.
    Butt.
    Butt.
    Connex
    Connex
  • Early Device Mock-ups
    Dedicated Buttons
    Pros
    Fastest, simplest access to features
    Cons
    Not easily extended with new features
    Some buttons not required by some users
    Novel Vertical Carousel
    Pros
    Faster, flatter navigation
    Easily extended with new features
    Cons
    Reliability / cost concerns
    Carousel Navigation
    Pros
    Easily extended with new features
    Consistent usable navigation
    Cons
    Reaching deep settings inefficient
    Each button does multiple things
    Existing
    Device
  • The Main Navigation Paradigm
    The Carousel
    Benefits
    Recognisable
    Learnable / Logical
    Efficient
    Staged access to features
    Extensible
    All main features available from main screen.
  • Good Design…
    Volume
    Sensitivity
    Detailed Hearing
    Adjustments
    Settings
    Home /Environmnts
    Check Status
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    …Reflects Behavior
    Adjustments
    Adjustments
    Adjustments
    Adjustments
    Occasional
    Tasks
    Home
    Daily Tasks
    Rare Tasks
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
  • Volume
    Sensitivity
    Detailed Hearing
    Adjustments
    Settings
    Home /Environmnts
    Check Status
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    …Informs Behavior
    Adjustments
    Adjustments
    Adjustments
    Adjustments
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Adj.
    Sensitivity
    Adj.
    Adj.
    Adj.
    Adj.
    Good Design…
  • Lessons…
  • IntuitivityVs Efficiency
  • Innovation vs Change Management
    Innovate
    Increment
  • Pattern Matching…
    Causing Problems
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Suggesting Solutions
    Volume
    Sensitivity
    Detailed Hearing
    Adjustments
    Settings
    Home /Environmnts
    Check Status
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Setting
    Adj.
    Adj.
    Adj.
    Adj.
    Adjustment
    Adjustment
    Adjustment
    Adjustment
    Adj.
    Adj.
    Adj.
  • Moving From UI to UX
    Keys to success
    The Right UI
    Audiologist
    Support
    Materials
    Users
    +
  • Training Audiologists as Testers
    How
    Wrote 1st Protocol & Materials
    Conducted 1st Round Testing
    Bought Steve Krug’s Book
    Observed 2nd Round Testing
    Mentored
    Left them to rounds 3, 4 and 5
    Were very responsive to results
    Benefits
    • SMEs Become UX Evangelists
    • Impartial Validation
    • …yet still tight, respectful relationship
  • The Healthcare UX Formula
    Patient Outcome
    =
    Efficacy x Compliance
  • The Healthcare UX Formula
    Compliance
    =
    Efficacy x _________
    A whole bunch of complex human factors
    User Experience
  • Presenting Mock-ups at Target Size
    Don’t do this…
    …do this
  • Prototype, Prototype, Prototype!
    Paper
    Balsamiq
    Flowella (on Nokia & HTC)
    Keynote -> PDF on iPhone
    Sketchflow and Balsamiq on Windows tablet
    New code on existing Cochlear device
  • Conclusion
    It’s different
    …but the same
    Seek, understand, exploit patterns
    Present at device size…on device…ideally prototype
    Manage innovation and change
    Balance intuitivity and efficiency
    Test ideas (not just complete solutions) casually.
  • Thanks
    Matt Morphett
    matt@amberdew.com.au
    twitter: @mattmorphett
    Shane Morris
    shane@automaticstudio.com.au
    twitter: @shanemo
    Rami Banna
    RBanna@cochlear.com