Evaluation of the interaction between individuals of different age groups and the instruction manual of mobile devices

Abstract

The owner instruction need to contain information for protect the companies as well as the users to the risk of accidents. Also as to provide information that address the needs of users into the usage contexts, ensuring the safe and efficient use of the product. This study evaluated the interaction between the owner instruction of mobiles devices and individuals of different ages. The procedure adopted as a method was developed by Interfaces Laboratory staff for "Usability evaluation of interfaces in consumer electronics products". It consists of two steps: heuristic evaluation and accuracy evaluation with which actions are performed. Was evaluated owner instructions of seven products. For the product evaluation, the sample consisted of six individuals, three of the male and three female genres, in the following age ranges: less than 25 years, between 25 and 50 years and above 50 years. Missing information and disability to the figures were the causes of the subjects failed to understand or to the high level of misunderstanding certain operating procedures. Many of the technical terms were unknown to the individuals, which caused trouble distinguishing features indicated in step procedure, preventing the user to explore the various options that the product offers. The information, sometimes presented as inaccurate if characterized as incomprehensible, they are difficult to understand. An owner Instruction must contain sufficient information to enable the user to use the product efficiently and safely.