1. We will focus a lot on the safety of the device.   We want it to be safe for the user to enter, use, and exit the unit.

2. We must achieve the goal help the MWCUs to get their aerobic workout.

3. Cost of the device should be kept to the minimum.

4. Manufacturability of the device.  Should be simple without the use of any electronic devices or like we have seen in figure 1 computers.