Ergonomics II

1. Ergonomics is the scientific discipline concerned with the understanding of interactions among humans and their working environment which will determine the human's productivity when it comes to work.

2. The five aspects are comfort, safety, ease of use, productivity and aesthetics.
3. The personal emergency response system, or PERS, is a product that can be worn on a pendant or a wristband. When the elderly person is in need of help, all he has to do is push the button and it sends a signal to a receiver that's connected to the home telephone line allowing the elderly to talk to a family member to ask for help.
This product ensures that the elderly's relatives know when he or she is in danger and will be able to get there in time to help them, ensuring their safety. The button is easy to use as you just need to push it to talk to your family members. The device can be worn on a pendant and will not get in the way of people too much, making sure the person is comfortable.