This site provides human factor tools and techniques to researchers and HF practitioners with a comprehensive description of tools to facilitate human factors research and analysis activities.The information is to be applied in accordance with human factors research and engineering best practices as the situation deems appropriate. The FAA does not prescribe or endorse the use of this technical information for any particular application or situation. You can use the search bar above to look up a particular tool or to browse by category click on the link below.