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Product Requirements

Our Process:

• The team decided that each major category of the product requirements will be the major categories that our user needs are organized into. These groups are not the suggested groups, but we felt like these will better inform our design based on our user needs. This will make it easier to both rank and generate the product requirements as we come up with and design our concepts. The product requirement list below is organized from the most important major category at the top and least at the bottom. Within each category the top most product requirement is the most important of that category.

Stakeholders:

• Target Users: People with nerve damage or limited mobility in the hand. Target Purchasers: This can be the target user directly or healthcare professionals for use in a medical/ rehabilitation facility. Sponsor and Advisors: ASU acts as a financial sponsor. EGR314 and Professor Aukes act as advisors to the final product.

Aspects:

1. Safety (***):

   1.1) The product’s structural components must not pinch, cut, or injure the user.

   1.2) The product should be made out of regulatory compliant and sterile materials.

   1.3) All electrical components should be sealed, hidden, or inaccessible to the user.

   1.4) A temperature sensor should sense if the user is holding something hot.

   1.5) The product should generally move slowly and not require high voltages, this will keep total energy low.

2. Ease of Use (***):

   2.1) The product should be able to be used by any type of user regardless of age, hand size, strength, or mobility.

   2.2) The product should adjust to fit any user.

   2.3) Using the product should be easy to understand and use.

   2.4) The multiple indicators on the product should not be loud or annoying, but still noticeable and understandable to the user.

   2.5) The product should be easy to manufacture, assemble, disassemble, and clean.

3. Functionality (**):

   3.1) The product will sense and relay the temperature of a gripped object and the grip strength force in real time.

   3.2) The product will use a motor to resist user grip strength if it exceeds an acceptable limit in real time.

   3.3) The product should be less than $240 and affordable for the average user.

   3.4) The product should be therapeutic for the user and slowly increase hand functionality over time.

4. Electronics (**):

   4.1) All electronics should meet the requirements for EGR314.

   4.2) The product should have enough power for at least 2-4 hours of use.

   4.3) The power supply should be completely internal or supplied by a USB-c connection.

   4.4) The product should respond to sensor data in an accurate, fast, and controlled manner.

5. Durability (*):

   5.1) The product should be water, heat, and impact resistant.

   5.2) The product should be made out of durable materials for a long product lifespan.

   5.3) The product should utilize easily replaceable parts.

   5.4) Any balloon or enclosed air pocket should be puncture resistant.

6. Comfort (*):

   6.1) The product should be comfortable and should not chafe during extended use.

   6.2) The product should be able to fit most size hands.

7. Misc. (*):

   7.1) Amount of remaining power should be visible to the user.

   7.2) The product life cycle should be considered when designing the product.

   7.3) A screen should communicate data and information to the user.

   7.4) The product should be stylish for the user.