Human Centered Design Universal Electric Toothbrush
Design Portfolio of
Jennifer clent
working with Joshua Lee
please note that some of these drawings belong to Joshua Lee
Contents Design Purpose Timeline Universal Design Inclusive Design Task Analysis Research Disabilities Hand Sizes Existing Models Recommendations Sketches Universal? Final Body Sizes Final Ideas
03 04 05-10 11 12 13 14-16 17 18-23 24 25-27 28 29-32 33 34
Design Purpose The purpose of this project is to re-design and everyday domestic appliance using inclusive design principals. To also present a formal presentation the Occupational Therapists of AUT North Shore, and to finish a design process that shows the creative process of this project. This design portfolio will go alongside of the presentation that was presented.
Timeline 18 July 24 July
Introduction / Task analysis exercise Lecture - North Shore - Meet OT’s and choose domestic appliance
01 August 14 August 22 August 29 August
Draft of task analysis Lecture - North Shore - Meet with OT’s to give final draft of task analysis OT’s Final report due - send to Josh and I Disablity lecture
03 September 11 September 17 September 18 September 19 September
Meet with Josh to discuss presentation Work on drawings and show Josh Review work with Josh / Finish presentation Final presentation and portfolio due - send to Nick Present final presentation to OT’s at North Shore
Universal Design
http://access.ecs.sonton.ac.uk/blog/training/universal-design/
Universal Design what is it?
1. Equitable Use The design is useful and marketable to people with diverse abilities. - Provides the same use for all users: identical whenever possible; equivalent when not. - Avoid segregation or stigmatizing any users. - Provisions for privacy, security and safety should be equally available for all users. - making the design appeal to all users.
http://www.extension.org/pages/24193/1:-principle-one:-equitable-use
2. Flexibility in use The design accomodates a wide range of individual preferences and abilities. - Provide choice in method of use. - Accomodates right or left-handed access and use. - Facilitates the use’s accuracy and precision. - Provides adaptability to the user’s pace.
http://www.extension.org/pages/24192/2:-principle-two:-flexibility-inuse
Universal Design what is it?
3. Simple and Intuitive Use of the design is easy to understand regardless of the user’s experience, knowledge, language skills or current concentration levels. - Eliminate unnecessary complexity. - Be consistant with user expectations and intuition. - Accomodate a wide range of literacy and language skills. - Arrange information consistant with its importance. - Provide effective prompting and feedback during and after the task is completed.
http://www.extension.org/pages/24191/3:-principle-three:-simple-andintuitive
Universal Design what is it?
4. Percetible Information The design communicates necessary information effectively to the user, regardlessof ambient conditions or the users sensory abilities. - Use different modes (pictorial, verbal, tactile) for redundant presentation of essential information. - Provides adequate contrasts between essential information and its surroundings. - Maximise ‘legibility‘ of essential information. - Differentiate elements in ways that can be described. - Provides capability with a variety of techniques or devices used by people with sensory limitations. http://www.extension.org/pages/24190/4:-principle-four:-perceptibleinformation6
Universal Design what is it?
5. Tolerance for Error The design minimises hazards and the adverse consequences of accidental or unintended actions. - Arrange elements to minimise hazards and errors, most accessible; hazardous elements eliminated, isolated or sheilded. - Provide warnings of hazards and errors. - Provide fail safe features. - Discourage unconsious action in tasks that require vigilance. http://www.extension.org/pages/24189/5:-principle-five:-tolerance-forerror
6. Low Physical Effort The design can be used efficiently and comfortably and with minimal fatigue. - Allow users to maintain a neutral body position. - Use resonable operating forces. - Minimise repetitive actions. - Minimise sustained physical effort.
http://www.extension.org/pages/24188/6:-principle-six:-low-physicaleffort
Universal Design what is it?
7. Size and space for approach and use Appropriate size and space is provided for approach, reach, manipulation, and use regardless of user’s body size, posture or mobility. - Provide a clear line of sight to important elements for any seated or stanfing users. - Make reach to all components comfortable for any seated or standing user. - Accomodate variations in hand and grip size. - Provide adequate space for the use of assistive devices or personal assistance.
http://www.extension.org/pages/24187/7:-principle-seven:-size-andspace-for-approach-and-use
Inclusive Design what is it?
Inclusive design is something, such as a product that is designed and possibly designed around all users, but may not in fact be addressed to that user. There could be a part of the product where somebody with a severe case of arthritis cannot use without causing pain or discomfort. With the majority of the world being able, the population that have disabilities are usally ignored or forgotten. A lot of products these days are designed more universal and special grips or add-ons can be added to items to remove the discomfort and recover the ability to use again.
Task Analysis Symplified
Research universal Grips
This universally designed mouse fits the shape of your hand comfortably resulting in a less painful wrist and a more natural resting spot for your hand
http://benchmarkreviews.com/index. php?option=com_content&task=view&id=277 &Itemid=65&limit=1&limitstart=3
This universally designed door handle grip molds over your door handle to prevent any more stress on your wrist. By having a tough grip the door can be easily opened
The universally designed cultery are mainly designed for people with severe cases of arthritis. Without causing extra pain or stress on the wrist, you are still able to enjoy your meal.
http://products.disabled-world.com/
http://www.squidoo.com/disabledkitchenaids
Disabilities
http://www.scribd.com/doc/24512037/Common-Physical-Disabilities
Disabilities
Learning Impairment - Difficulty concentrating - Delayed development - Unattentive Hearing Impairment - Deaf - Reduced hearing - Hearing aid
Asperger Syndrome - A narrow interest or obsession with a particular interest. - Unusual language or speech - very logical or technical thinking - sometimes clumsy or uncoordinated Autism - Experiences sensory intergration dysfunction - May struggle to retain eye contact - Clumsiness and coordination problems
http://www.thestudentroom.co.uk/wiki/A_list_of_common_disabilities_
Visual Impairment - Blindness - Colour-blind - Reduced Vision
Disabilities ADD/ADHD - Delayed development - Difficulty concentrating - Difficulty completing tasks - Talking excessively Dyslexia - Problems with readind, spelling and writing - Struggle concentrating - Low self-esteem and frustration Elderly
http://www.thestudentroom.co.uk/wiki/A_list_of_common_disabilities_
Depression Mental: - Continuous low self esteem - Feelings of guilt - Lack of motivation Physical: - Slowed movement and speech - Change in appetite and weight - Unexplained aches and pains Social: - Reduced hobbies and involvment. - Difficulties at home with family - Difficulties at school/ work with peers
Hand Sizes
http://usability.gtri.gatech.edu/eou_info/hand_anthro.php
Existing models Oral B ProfessionalCare Smartseries 500 - Seperate and wireless - Deep clean mode removes up to 99.7 % of plaque from hard to reach places. - Gentle on teeth and gums - 5 modes : Daily cleaning, Sensitive, Whitening, Massage, Deep clean
Oral B Pulsonic Sonic toothbrush - Slim and lean. Not bulky - Light on your hand and gentle on your gums - Quiet and soft - Helps you brush for 2 minutes
http://www.oralb.com/products/pulsonic-sonic-toothbrush/
http://www.oralb.com/products/professional-care-smart-series-5000/
current toothbrushes
Existing models Oral B ProfessionalCare 3000 - Removes up to 97% of plaque from hard to reach places - Helps to prevent and reverse gingivitis - Pressure sensor stops pulsations when your brushing too hard - 3 modes: Daily clean, Sensitive,
Oral B ProfessionalCare 1000 - Removes up to 97% of plaque from hard to reach places - Helps to prevent and reverse gingivitis - Pressure sensor stops pulsations when your brushing too hard
http://www.oralb.com/products/professional-care-1000-toothbrush/
http://www.oralb.com/products/professional-care-3000-toothbrush/
current toothbrushes
Existing models current toothbrushes
http://www.oralb.com/products/vitality-dual-clean/
Oral B Vitality Pro White - Cleans significantly better than a regular manual toothbrush - Denitist inspired polishing cup helps remove surface stains
http://www.oralb.com/products/vitality-pro-white/
Oral B Vitality Clean - Removes more plaque that a regular manual toothbrush - Includes a head with two distinctive, moving sections
Existing models current brush heads
Oral B Pro White - Gently removes stains to naturally whiten teeth - Cleans thoroughly
http://www.oralb.com/products/precision-clean-brush-head/
http://www.oralb.com/products/prowhite-brush-head/
http://www.oralb.com/products/flossaction-brush-head/
Oral B Floss Action - Miscro pulse bristles - Delivers a clinically superior clean
Oral B Precision Clean - Cleans deeper than a manual toothbrush - Penetrates hard to reach areas
Existing models current brush heads
Oral B Ortho - Cleans the areas around orthodontic work, such as braces
http://www.oralb.com/products/pulsonichead/
http://www.oralb.com/products/orthobrush-head/
http://www.oralb.com/products/dualclean-brush-heads/
Oral B Dual Clean - Provides twice the cleaning action - Delivers thoroughly cleaning, freshening, and gum care - Penetrates hard to reach places
Oral B Pulsonic - Whitens teeth by reducing surface stains upto 94% in 2 weeks - Contours, while remaining gentle on your teeth and gums - Removes significantly more plaque
Existing models current brush heads
Oral B Action Refill - Helps bristles stay cleaner between brushes - Penetrates hard to reach places
http://www.oralb.com/products/crossaction-power-whitening-toothbrush-heads/
http://www.oralb.com/products/crossaction-power-anti-microbial-brushheads/
http://www.oralb.com/products/sonictoothbrush-head/
Oral B Sonic - Cleans teeth
Oral B Cross Action - Naturally whitens teeth by removing surface stains - Effectively cleans teeth
Recommendations From the OT’s
- Speed of oscillation of brush should be able to be adjusted. This is so that people have control when brushing in sensitive areas. - Colour and different shapes to be used to indicate where the on/off button is located to aid people in discriminating foreground from background. - Ideally brush should oscillate in alldirections as oppose to just left and right. This is so that people with decreased range of movement (ROM) in wrist/arm are able to brush teeth effectively using less movement. - Battery weight should be minimal to aid people with decreased strength. - Changing the material used for the handle so that it is easier to clean and can mould to peoples grip. (if this is possible?). - Charging battery could be made easier by not having to charge it in another room. Battery could be charged with new wireless technology.
Sketches Body Shapes
Curved body with easy to reach and touch buttons, Minimal and uncomplicated with a sturdy strap.
Sketches Charging
Touch charger, Easy to pick up/put down, No small fittings or connectors, vibrant
Sketches
On/off Button - Timer
Four different and vibrant colours, Built in timer, Each colour has a meaning: Green: turn on/start timer (Tap to Play) Orange: half way through time (Tap again to pause the timer) Red: Stop at end (Tap for the third time to stop the timer) Vibrates when time is up to tell user Yellow: Charging automatically when on dock colour, space conscious.
Universal?
What is universal about our toothbrush? #1 Equitable use - Curved body - Added strap - ‘Ball-like’ brush
#5 Tolerance for error - Shock resistance (allows for being dropped without breakage)
#2 Flexibity in use - Moulded gel grip for fingers
#6 Low Physical effort - Strap for hand (allows less use of the finger joints)
#3 Simple and Intuitive - One button for all functions - Easily charged (just plug in and put brush ontop) #4 Perceptible Information - Easy to use - Known and looks like an electric toothbrush
#7 Size and shape for use - Regular size for brush in length. - Decreased weight in battery weight and size. - Decreased cylinder sizing. - Charging is space conscious and is regular sizing for easier use.
Final
Toothbrush heads - Spherical shaped brush designed to act as an all mouth brush for low physical effort - Small and easy to fit into mouth - 3 different interchangable heads, Each brush has a different colour and a different texture for its purpose - Whole for water to drain out, to prevent water getting inside of the brush and leaking into the battery - Vibrant colours contrast with brush, but also stand out to prevent confusion.
Final
Toothbrush Body - Curved body for an easier way to brush which relates to equitable use - Fitted to the shape of your hand for flexibility in use - Textured gel grip positioned where the brush is held for simple and intuitive - Contrasting and vibrant colours - Adjustable hand strap for less use of finger joints for equitable use - Light-weight battery which relates to tolerance for error
Final
On/Off Button
- Simple and intuitive -Soft touch screen panel - 4 different buttons to change through - Each colour has a symbol for that meaning - Built in illuminated timer - As timer goes the dial changes to allow the person to know how long they have been brushing - Soft vibration occur when brushing time is complete
Final
Charging Dock
- Low physical effort for use - Induction charging - Curved shape just like the brush body - Easy to pick up brush up from and connect brush back down - Space conscious - Vibrant colour - No small fittings or connects that get confusing
Body Sizes
Final Idea