ABSTRACT
Overall· the consumer products of today have reached a high degree of complexity that often the users are not accustomed or habituated to using at a first time. This seems true when we realize that the instruction manuals often do not provide a readable and easy to understand, sometimes with a technical language, sometimes with a very extensive content and lowercase letters. It is interesting to say that although the high degree of sophistication and technology stemming with the years has maintained a strong pull from the standpoint of strategic advertising and marketing, this may produce serious frustration to users, causing problems either physical and/or cognitive. Thus, this paper presents a confluence of data pertinent to a field study conducted in Recife-PE, Brazil on consumer products, aligned to the influence of usability on the use of these products. The study runs through the
stages commonly used in product development and how the testing directed to the area of usability can make a product have a higher acceptability by the general public, making it safer to use. These are shown through illustrations and testimonials, case studies of accidents involving consumer products that could have been avoided if in the project some aspects of usability have been aggregated. At the end of the ariicle it's possible find the main findings of the study within the binomial: security and usability.
