Constraints

Constraints

1. functional

   • Must be water-resistant. Metric: Saliva in mL. Limitation: Must withstand 1.19 mL of saliva [21]

2. physical

   • The restriction of Joey’s hand and fingers must be minimum. Metric: number of movements. Limits: Able to achieve ±10º of the existing wrist and finger movements (see Fig. 5.2.1) [16]
   • Protective, must prevent injuries severe enough that they leave scars. Metric: number of scars. Limits: None

3. financial

   • must be affordable. Metric: cost(CAD). Limitation: the cost must be under $100

4. environmental

   • none

5. social

   • none

6. safety

   • Must be non-intrusive. metric: Contact/impact to parts of the body other than mouth and hands
   • Must adhere to ethical guidelines. metric: Must adhere to ethical guidelines. limit: Must follow all PMPRB Guidelines [20], specifically no shocking [24]