ABSTRACT
The complexity of some newer product interaction in complex context systems demands a higher level of user performance and involves risk that may possibly negatively impact the user's safety and health. For this reason, the evaluation or design of new products used in complex systems requires extensive knowledge of human interaction, including the operation and vulnerabilities of the whole system. Therefore, with this consideration, the use of video analysis increases the capability to collect more detailed information on human activity during the interaction of the user with a product-environment system. With these data come increased understanding of user strategies and awareness of possible safety and health issues and system dysfunctions.
