Archive for the 'Concept Test I Results' Category
Team 9 – Concept Test Results for Prototype I: Remote Piano Pedal Controller


  1. State the question you asked.
    •  How are you currently controlling the piano sustain pedal and what are the problems/benefits with your this system?
  2. Report in general terms the feedback you received from the question. 
    • Client is using an electric piano sustain pedal which gives an on/off signal to a solenoid.
    • The on/off action is not adequate to produce the desired performance nuances. More natural, partial response is desired.
    • The solenoid is noisy and heats up quickly.
    • The solenoid is very quick
  3. Summarize specific comments from respondents
    • Client is excited about having more control of the pedal
    • Speed of response is  a high priority
7. Team Bravo Squad – Concept Test Results for Prototype I: [Sydney Blanton Emergency GPS Locator]

1. How often do you travel alone?

Out of the 7 respondents, 4 said they went out almost every day and weekend alone, 1 said a couple of times throughout the week and on weekends, 1 said she traveled a lot but rarely alone, and 1 respondent said she travels once every few weeks (more in the summer time) because she is older and doesn’t get out as often.

2. Do you travel more at night or during the day?

Of the 7 respondents, 6 said they travel both at night and day but more during the day. 1 of the respondents said she travels during the week after she gets off of work around 5pm and anywhere form 8am to 8pm on the weekends. 1 of the respondents that goes out more during the day said she usually goes out in the afternoon, but doesn’t like to stay out into the evening because she can’t see bumps.

3. On average how far do you go?

The average answer was between 1 to 3 miles depending on the day. Some residents travel farther on the weekends. Of the 7 respondents, 2 residents say they travel about a mile or two. 1 resident said she can go as far as 37th and Rock, but sometimes she uses the city bus to get there and then comes back using her wheelchair. 1 resident says she usually goes as far as Woodlawn and 13th street. Another respondent said he goes as far as 29th and Rock. He says “I like to go to Walmart, Walgreen’s….everywhere.” Another respondent says she goes to 21st and Woodlawn and to town East. 1 respondent says that she would like to make it to 29th and Rock to explore the Chisholm Trail Nature Center, but she is afraid to go that far. She is afraid her wheelchair wont make it. She doesn’t want to get stuck.

4. Has your wheelchair ever stopped working when you are alone?

Of the 7 respondents 3 said no. 4 respondents said yes. Of those that said no, 1 said she is always afraid her wheelchair will stop working and another said that she forgot to charge her wheelchair one night before going out the next day and her wheelchair almost stopped working while she was out but she was able to make it back. She was nervous though. And 2 of the respondents said that their wheelchair use to stop because their battery was old and sometimes the heat/cold would affect the battery monitor. Of the respondents that said yes, one of them said she had a flat tire causing it to stop, another resident said he ran over a curb causing him and his dog to fall out of the wheelchair.

5. How often does your battery run out?

If you plug the new batteries in every night, then the wheelchairs can last all day, but if you have an older battery, it is not as long lasting or safe.

2 of the 7 respondents said that their battery runs out frequently because they have an old battery. The other 5 respondents say that their battery lasts all day because they have newer ones which should last them about a year to a year and a half.

6. How do you gauge how long your charge will last on your wheelchair?

All the respondents say that the reader on their wheelchairs is fairly accurate, but it is hard to tell how much battery you have left when it is really hot or cold. The weather affects the battery monitor.

7. How difficult is it for you to contact someone in case of an emergency?

All 7 respondents said that they have a cell phone and would contact 911. One of the respondents that said they have a cell phone said that the emergency GPS button would be great for those who are hard to understand over the phone.

8. Do you have a cell phone/way of contacting someone in case of an emergency?
All 7 respondents said they have a cell phone.

9. Where would you like the location of the switch/button to be located?
All 7 respondents said that they think the switch/button would work best on the side of the control panel, so no one accidently bumps it and it is close enough and easy enough to press.

10. Would you prefer a switch or a button?
Of the 7 respondents, 4 Respondents said they would prefer a button because it would be easier for those with less hand control. And the other 3 said that a switch would work out fine.

11. How much would you be willing to pay for this device?
We only had time to ask 4 respondents how much they were willing to pay. 1 respondent said she would pay no more than $35-$50 for this device. Another respondent said she would only pay $50 or a monthly payment plan. The other two respondents said they would not go over $200 and would like a monthly payment plan of about $20 a month.

Note: Three other residents that do not have wheelchairs agreed that it is something people need. They say some residents don’t have cell phones and this product would be good for them. They agreed that CPRF residents are on a limited income and would need to set up a monthly payment plan to make it affordable for them.

MARZ – Concept Test Results for Prototype I: Campus App

Raw Data

A compilation of the raw data can be found here on Google Docs:

Even before further summary, we saw a fairly large demand from the people we interviewed.


A graphical summary of the data we collected is presented below. A total of 68 surveys were analyzed.

31 of the 32 responses indicating use of an alternative provided the alternative they used. The breakdown for this data is below.

All 68 people surveyed were asked what features they wanted to see in a comprehensive campus app. Results are shown below.

The overall data used to generate these charts can be found here.


Each of the following were suggested by survey takers.

  • Textbook Recycle / Exchange – This would probably fall under the idea we had for a classifieds section, but is a good thing to consider separately. More than likely textbook reselling will comprise a majority of our listings. We will need to make sure our app accommodates this; we may even want to find ways to make it easy for people to compare selling prices with other online prices (e.g. Amazon, Barnes & Noble).
  • Daily RSC Specials / Coupons – I really like this idea, as it gives users an incentive to use our app and provides them with some benefit. This could potentially extend outside of the RSC as well. A different person suggested integration with the bookstore; I think this would work wonderfully.
  • Blackboard Access – This one seems a bit less feasible to me. Blackboard already has its own app, and I think we risk privacy issues trying to interface with their stuff.
  • Course Catalog – This would be nice, but seems outside the scope of our app. I’d especially hate having to re-parse the course catalog PDF released every year.
  • News and Weather – I think this would be easy to implement, but I’m not sure how much use it would get. Most people have news and weather sources they frequent already. I think they would be unlikely to open our app for something they already get elsewhere.
  • Event Reminders – I’m not sure exactly how this would work; would we text users before an event? This seems like something that would take a lot of resources and may seem spammy to those who initially want to subscribe to these reminders.
  • Parking Assistance – While the appeal is there, this would be a massive undertaking. Lot closures, etc. would also complicate this.
  • Live Sports Data – The person that suggested this mentioned showing current scores and the time remaining in a game. I’m not sure how this would work, but it’d be cool.
  • Navigation Assistance – This is something we’d need to integrate into the map layer of our app. This would have to be done app-side, or the coordinates of the destination would need to be handed off to Google Maps.
  • Social Media Feed – This is something that would pull current posts from campus organizations’ Twitter/Facebook/etc. pages. This seems like something very feasible and easy to implement. I could see this being clutter to some people if it contains information they don’t want/need to see.
  • Forum – This would provide students with a way to communicate with each other. I feel like this role is already fulfilled very well by Facebook et al., and would be outside the scope of our project.


From the yes/no questions alone, we know the following things

  • About half of the people surveyed have no way to connect to the campus around them.
  • Almost everyone surveyed was interested in events happening on campus.
  • Almost nobody wants to pay for a means of connecting to campus organizations/events.

Of those who do connect to their campus online, Facebook is the mode of choice, followed by the campus website.

GPS functionality was not as focal to a campus app as we’d anticipated. Instead, demand was for classifieds, daily news, a campus directory, campus group activities, and sports events. These should be the major factors of any campus app deployment we put together.

Group 3 – Concept Test Results for Prototype I: Rollover Protection Arms


  1. How often do you need assistance from your wheelchair falling over?
    • 1/2 said this does not happen often if ever.
    • 1/3 said this happens sometimes.
    • 1/6 said this happens often.
    • The times they said it happens often were from falling forwards or backwards and not to the side.
    • Comments: One person would prefer an automatic window close/open system.
  2. Where do these accidents occur if ever?
    • 2/3 said curbs.
    • 1/3 said yards.
    • 1/2 said sidewalks.
    • 1/6 said ramps, vehicle lifts, hills, and pot holes.
    • Curbs seem to be the biggest problem but our system won’t stop a wheelchair from falling forward off a curb.
  3. How much would you be willing to spend on this product?
    • 1/3 said they were unsure of a price.
    • 1/6 said $50.
    • 1/6 said $75-$125
    • 1/6 said $150-$200
    • 1/6 said less than $300
    • One person stated they would like to have a payment plan option.
  4. How do you see this helping you?
    • 1/6 said they don’t see it helping them at all.
    • 1/6 said they were unsure how this will help them.
    • 1/6 said it might help them but they aren’t sure.
    • 1/3 said it would probably help them from falling.
    • 1/6 said it wouldn’t help in the back but maybe the front and sides.
    • One person said it should help because the wheelchair does not have stabilizers built-in.
  5. What can be added or changed to improve this product?
    • 1/2 said they had no idea what could be added.
    • 1/3 said to add wheels to the arms so they can still roll when tipped.
    • 1/6 said to add lights and blinkers.
    • One person said they do not trust new technology.
Out of Time – Concept Test Results for Prototype I: Hot/Cold Pad

We had a very simple set of questions, but with a specific purpose.  Now we have a better idea of just who would purchase this product, and for what reasons.

Questions asked:

  • Do you think our idea is a good one?
  • What benefits do you find most useful?
  • What improvements would you suggest?
  • Would you buy this, and for how much?
  • Are there any special needs or requirements this product needs to take into account?

Feedback Summary: 

  • All of the residents we interviewed liked the idea of our project, and responses varied from super excited to simply positive.  Those who saw an immediate need were the most helpful in providing feedback.
  • Most residents indicated that they would use this product while sleeping at night.  This feedback made us consider a non-portable AC powered model that could be kept inside, with excess heat pumping out the window or into a return vent.  Fewer respondants indicated they woulk like this to be chair mounted, but those who did implied that was the primary need.  One woman indicated that this could possibly drasticly reduce her MS symptoms.
  • Suggestions were along the lines of what we expected.  Eveyone wanted interchangeable accessories, which could vary from pads to socks to blankets, etc.  Durability was key, as most users would be sitting/laying on the cooling device.  Ergonomics was paramount to reduce the chances of sores and increase long-term comfort.  Bluetooth controls and power reduction weren’t as critical, but they have us considering our options.
  • Considering most individuals were on a fixed budget, we were suprised that everyone indicated that they would purchase our product.  While we understand that this may not reflect actual spending decisions, the feedback is positive.  We recieved potential price ranges from $70-450, depending on the features and real world results the product would offer.
  • The insight we found while speaking with the residents will prove invaluable.  The cooling and tubing devices have to be snag-free, and be able to transition from the bed to a chair without getting tangled.  They also have to be easy to move/grasp, as not everyone has a full range of motion or strong motor control.

Specific findings:

  • We found that most residents would utilize the cooling features of our device, ignoring the heating functions.  This could have something to do with the HOT summer that is still on everyone’s mind, so we don’t plan on abandoning the heating functionality.
  • One women asked that the device be quiet, as she would primarily use the device to cool her hips as she slept.  While being a simple point, it will be key to consider during every phase of construction.  The wrong pump or fan could turn off the consumer enough to make the product a flop.
  • Once we complete a working, safe prototype, we have at least 2 volunteers at CPRF that would like to test it out:)
[JEL Group] – Concept Test Results for Prototype I: [Relay]

1. How will the device be powered?

The device will be powered from the chair?


2. How will the device attach to the chair?

The chair will be mounted under the chair. (We realize that this description is a little too vague and we will try to get a more specific description in the future.


3. How much would you be willing to pay for the device?

$175 which is half the price of the switch.


4. What are the max dimensions of the device?

The Device needs to be no larger than a 4x4x4 inch cube.


Note:    In terms of the response from the client and the beneficiary of our device there is a general sense of excitement for our product. The information Greg has given us is that Josh and his entire family are excited about our product and the idea of gaining more freedom which will free him and his care givers from having to change switches on his chair as well as relying on others to perform the switch when Josh is not at home (i.e. school).

Team #5 – Concept Test Results for Prototype I: Rescue Lifter

Concept Test I was conducted Sept. 25, 2012 with Neal Hockersmith, Waleed Shaban, and Richard Richey present at the CPRF.  We conducted an informal interview of basically the viability of the prototype to about 10 CPRF residents.  The questions varied from resident to resident depending on the respondent interest and comfort level.  The questions were limited due to the similiar responses.

How will this product be able to assist you?
Generally, all of the residents believed this product would be able to assist them with getting up off the floor after falling down.  Only one made the comment to not being able to use it due to no motor skills below the waist.

What problems can you foresee with this product?
Almost all respondents were concerned about being able to get into the harness at not only a practical level but comfort and safely.  This was dependent on the level of mobility.  A person with a lesser degree of mobility had more concern, but a person with more mobility had less concern with using the harness.
Also, a majority of the respondents were concerned about the product being able to navigate through their apartment.  The floorplan for the CPRF residents is at  and should provide a good reference point.

What would you purchase this product for?
Generally around $500 with a few between $1000 to $2000 and one $5000.  Review any sponsorship programs that would assist cost. United Way and United Cerebral Palsay.

How quick would you expect the product to assist you?
From less than one minute to less than twenty minutes with the majority around five minutes.

Other miscellaneous discussion points.
Rubber wheels, folding telescoping legs, seat have bottom support and padding, use a sling vs. a harness, need at list one hand for the control.  Need to be able to fully strap in.

Main takeaway:
The biggest concern was being able to practically use the product.  As in lifting oneself into the harness and strapping in comfortably.  However, an individual that has a lesser degree of mobility that would not be able to practically use this would most likely have a more onsite assisted living care.  This product is more useful for an individual who is more independent and has a fairly high degree of motor skills.  It may be a good idea to limit the target market to individuals who do not have onsite living care (more independent and some level of motor skill).  In my opinion the practicality of the lifting design should be reviewed at some point (mechanics of lifting X lbs.) but probably after finalizing the electronic guidance system.  It seems the technology for both fields (mechanics of lifter, guidance system) exists, they just need to be brought together.  However, in general the residents were very entertained by the idea and prototype.


Team Alpha – Concept Test Results for Prototype I: TrueView Camera System

This set of questions, along with an illustrated product guide, was provided to each of the respondents at CPRF.

In total, 8 residents were interviewed.  Three individually, one group of two, and one group of three.

Open ended questions:


  • What frustrates you most about not being able to completely see around you?
    • All (8 out of 8) respondents stated that they are concerned about running into other people.
    • 6 out of 8 respondents were concerned about running into objects.
    • 2 out of 8 respondents were concerned about causing damage to walls and ‘nick-nacks’ in their household.
    • One resident stated that he has trouble with seeing anything past his peripheral vision.  He feels that it is often times hard to focus on where he is going.
    • One resident was very concerned with her friend backing up into people.
  • Do you think this product is a good idea? Why?
    • All of the respondents felt that the idea holds value and would be of help to anyone confined to a wheelchair.
    • Two resident mentioned that it will greatly help them to maneuver around her apartment and supermarket.
    • One resident mentioned how it will help him to maneuver while in a hallway or other tight quarters.
    • Two residents mentioned that it will help to eliminate the amount of damage to apartments and the objects within.
  • Would this system inhibit you in your daily activities?
    • 5 out of 8 residents felt that both a forward and rear facing camera would not inhibit them in their daily activities as long as the front camera could pivot out of the way.
    • One resident felt that the camera system could turn into a distraction.  This could cause the wheelchair operator to become sidetracked and lose focus on anything outside of the camera screen.
    • One resident feels that his activities would not be inhibited if the front facing camera were eliminated.
  • Is this the best location for camera(s)?
    • 3 out of 8 respondents felt that the rear facing camera location would prohibit access to the wheelchair batteries.
    • 5 out of 8 respondents felt that the front facing camera and screen need to be able to rotate out of the way.
    • 2 out of 8 respondents felt that the screen and camera need to be moved closer to the occupant.
    • One resident made the following comments: Put screen on a bar that could swing out of the way.  Move back camera to backrest of chair.  If chair was being worked on, this would make it easier to not have to remove the camera system.
  • How big of a screen will make this work the best for you?
    • 4 out of 8 respondents feel that the screen size should be between that of an iPad and iPhone.
    • One resident feels that an iPhone sized screen would be adequate.
    • One resident stated that the size and location of the screen greatly depends on the vision health of the occupant.
  • Have you ever used or seen a similar product in the past?
    • No respondents have ever seen or used a similar product in the past.
    • One resident stated that he has seen similar systems in automobiles.
    • One resident stated that he has seen wheelchairs with a backup beeper that does not change pitch or rate with proximity to objects.
  • Would you like to be able to take pictures with your camera system?
    • 6 out of 8 respondents stated that they would like to be able to take pictures with their camera system.
    • 4 out of the 6 respondents who would like to take pictures stated that taking pictures is not as important as the backup sensing capabilities of the system.
    • One resident stated that her friend in a wheelchair would prefer to take pictures with a normal camera.
    • One resident expressed his frustration regarding how he could not take pictures of swans in a pond using his camera phone.

Other comments:

  • One resident would like to have a split screen for both front and rear cameras.  He would also like to be able to zoom in on an object using the front camera.  He feels that a distance scale with reference marks on the screen would be very beneficial.
  • One resident would prefer that the system is only on when he is reversing.  He expressed concern over how the apartments were redesigned when renovated.
  • One resident mentioned how she knocked over her TV stand which held memorabilia from high school.  This proved to be very frustrated for her as she feels it is difficult to keep nice items in her apartment.
Lucky 13 – Concept Test Results for Prototype I: Battery Assisted Grabber

Are you interested in this product?

  • Everyone said yes they could use the grabber in some way.
  • There weren’t any negative comments to this question.

What do you like most about the grabber?

  • 2 people talked about how they liked having rubber coated clinchers rather than hard plastic.
  • The most liked feature of an ideal grabber was telescoping

What do you like least about the grabber?

  • Grabbers that could hinge or fold up like the gopher got stuck
  • Wanted to be able to control how much force was put into the clinchers

Are there other features that you’d like to see incorporated?

  • 3 people talked about adding a magnet to the end
  • 1 person talked about making the clinchers able to rotate
  • Make the clinchers wider
  • Be able to attach it to a chair
  • Be able to change the clincher attachments for different tasks

Should anything be eliminated?

  • Due to the lack of features of our prototype no one could give a good answer to this question

How often do you think you would use the grabber?

  • 5 people said many times a day
  • 1 person said 2-3 times a week
  • 1 person said everyday

Do you own something like this already? If so are you satisfied with it?

  • There were only two people we talked to that didn’t own a grabber
  • No one that owned a grabber was completely satisfied with how it functioned

Would you consider purchasing the grabber? If so, how much would you pay?

  • 1 person said $50
  • 1 person said $20 if it was durable
  • 1 person said $25 if it could telescope
  • 2 people said $40-$50 if it could telescope
  • 3 people said $150-$200 if it could mount a camera in place to take pictures (since other camera mounts were in the magnitude of a thousand dollars)

What types of things do you need to pick up during a normal day?

  • Answers included: shampoo, clothes, phone, fork, pills, paper, pins, glasses

What is an example of the heaviest item you are comfortable picking up?

  • Answers included a Gallon of milk, Bleach or laundry detergent, laundry basket, 3 liter of pop

How far way would like to able to reach?

  • 3 people said to the top shelf of a cabinet (roughly 7ft off the ground)

Would you like this type of device to be something that attaches or anchors to your chair?

  • Everyone said yes
  • 3 people specifically mentioned only if it was detachable

Or would you rather it be held in your own grip?

  • Anyone who was asked this question always said it would be better if it was detachable from a chair

How much dexterity would you like to have? Ex: is it enough to pick up a shirt or a bottle or do you wan to be able to pick up a pencil, a piece of paper, or other small objects?

  • Everyone that owned a grabber talked about how frustrating it was when they re-dropped small objects over and over using a grabber

How much do you car about the aesthetic appeal of the device?

  • We didn’t ask every person this question, because it didn’t seem to be important.
Shade Technologies – Concept Test Results for Prototype I: Motorized Wheelchair Canopy

Do you think the motorized wheelchair canopy is a good idea? Explain why.

  • 7 out of 7 residents said yes it was a great idea
  • 4 out of 7 said it was a good product because it would give them protection from the sun
  • 3 out of 7 said it was good for cover from the rain
  • One resident said it would give them instant shade instead of having to look for a tree for shade
  • Another resident said it would make them feel safer since it would enable them to see better without the sun hitting their eyes

Is there anything similar to this product for purchase?

  • All seven residents said that they have not seen anything similar to the motorized canopy for purchase
  • 2 residents said they know they have manual umbrellas for the wheelchairs, but not automatic
  • One said that they would not buy the manual umbrella because if they got stuck in the middle of nowhere and it started to rain it would take to long time to open

What problems do you have with manual umbrellas?

  • Majority of the residents said they don’t have a manual umbrella because it is not user friendly, mentioned a few times was that it took too long to open umbrella and that some residents are not able to close it
  • One of the most mentioned problems was that they could not hold umbrella and drive wheelchair at the same time, someone also mention that it was not safe to hold umbrella and drive
  • One particular person said that they cannot handle one or carry one

Do you like the design of the motorized canopy? What changes would you make to the design to make it more useful?

  • 4 out of 7 residents said they like the squared design better, 2 residents said they prefer the canopy, and 1 said they like the canopy that extends further
  • 5 out of 7 agreed that having more coverage would make it more useful
  • 3 residents said that extending the height and width would give them more freedom to move
  • 4 out of 7 residents agreed that they want a different material for the umbrella, 3 said they want a clear fabric on the sides to be able to see and one said they want a lighter fabric so it feels more airy and not as hot

Is there something you would change to make it better?

  • Most of the residents agreed they would like to be able to control the coverage of the umbrella from little coverage to complete coverage
  • A few residents said that they would like to have a light on front for visibility and for others to be able to see them when they are on the road, a resident said that a lot of the residents go out at night and having a light would be very helpful and safer
  • One resident said to make it wind resistant so it will create less drag

Do you prefer a button or switch control?

  • 4 out of 7 residents said they prefer a button, one said that the button was easier for those that don’t have good use of their hands
  • 2 out of 7 residents like the switch better
  • 1 resident said that either was fine
  • One resident mentioned the idea of a remote control instead of the button or switch
  • Another resident suggested a rocker switch

Would you have any safety concerns about using a motorized canopy, such as visibility around the canopy?

  • 5 out of 5 residents said they do have some safety concerns about using the motorized canopy, one resident said that the wind will drag the umbrella and another said that they are afraid of getting bumped in the head with the canopy
  • 2 out of 5 said that they would like more visibility around them

Will this product be useful all year long?

  • 6 out of 7 residents said it will be useful all year long
  • 5 out of 7 said they will use it mostly when it is sunny and rainy, one resident said they will use it mostly for the sun

How often do you buy accessories for your wheelchair? And where do you buy them?

  • 5 out of 5 of the residents that gave an answer to the question said that they buy something for their wheelchair at least once a year, 3 out of 5 said they buy accessories for the wheelchair at least once a year and 2 out of 5 residents said twice a year they buy something
  • Some of the places mentioned for buying wheelchair accessories: Wal-Mart,, Dollar Store, medical supply places, wheelchair stores, Heart Drug, and CPRF Store
  • Most popular answer was Wal-Mart

On a scale of 1-10 (with 10 being the highest), how valuable do you find this product to be?

  • 4 out of 7 residents found the motorized canopy to be of great value, giving it a 10
  • 2 out 7 residents rated the motorized canopy a 9
  • Only one resident said 8
  • All of the residents think the motorized canopy is valuable because they would like to have some shade and protection from the rain and would make their life easier
  • One mentioned that it would benefit a lot of people because they would not be stuck inside because it’s too hot outside and would have more freedom to go outdoors
  • A couple people said it would be very helpful and it would solve one of their many problems