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                                 This is the symbol for people who are involved in ergonomics.

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                         Ergonomics, the Human Factor

                          There would not be much of a problem if you were designing and making something for yourself because you would make it fit with the way you would want to use it.


However if you were designing a product for a particular market, the item designed for your own personal use may not be so suitable. Depending on the item designed, it could be uncomfortable for others to use it because there may be differences of



 size and shape ranges of people


 range of limb movement, strength, vision, hearing


 cognitive, reaction time, memory


This is where ERGONOMICS comes in.    

Ergonomics is about using data about peoples abilities and limitations to design workspaces and tools that help people do their jobs and use their tools and other products comfortably and safely.

When ergonomics is applied correctly  discomfort and fatigue are reduced significantly. . People are more comfortable, they can do things more quickly and easily, and they make fewer mistakes. Watch a Video 26 minutes ( http://www.lni.wa.gov/wisha/videos/Ergonomics300.ram ) You can have this link playing in the backround while browzing.
Ergonomics is often called 'Human Factors' because it is not only concerned about the the physical data but is also concerned about psychological and other aspects too. In short it is concerned about the whole person.
Ergonomic design is a way of considering design options to ensure that people's capabilities and limitations are taken into account. This helps to ensure that the product is fit for use by the target users.
Anthropometric data is also required (size and shape ranges of people). With data such as this available, products can be designed so that they fit the person they are designed for.

Sources of information: http://www.ergonomics.org.uk/index.htm