Jakob Nielsen

She also does not possess stand, therefore not if she can to make you vary purchases at the same time and the products already have distinct salesmen .5. RESEARCH RESULTS The frequency of users who have access the Internet well is varied, but the majority, arriving 50% of the users use every day. This diversifies the opinions of interviewed in relation to the sites e-comerce if left very well, therefore it was what it facilitated more the navigability of the users, independent of the experience. although to present the cited problems, if it left as an excellent site e-comerce. Already caused great impact, exactly not following the usability standard and not passing trustworthiness.

In this site some salesmen exist, used products, the search are more tiring, however he passes more confidence only for more experienced. 6. FINAL CONSIDERAES The users had answered to a questionnaire having related its preferences in a relation on characteristics on usability in the tested sites, if basing on the heuristical ones of Jakob Nielsen. One concluded that although excellent terms sites of e-comerce, many still present usability problems. The three cited in the project all had had advantages, but all had presented problems with usability, mainly the Free Market, that ran away from the standard in accordance with what we inform on the heuristical ones of Jakob Nielsen we can conclude with the following ones summaries: The system must inform the user continuously on what it is making. The terminology must be based on the language of the user and not be guided to the system.? The user controls the system, it can, at any time, abort a task, or to undo an operation and to return to the previous state? One exactly command or action must always have the same effect? To prevent error situations.? The system must show the dialogue elements and allow that the user makes its choices, without the necessity to remember a specific command? Shortcut using experienced to execute the operations more quickly.? Must be presented accurately the information that necessary user at the moment, nor more nor less.? They do not have to blame or to intimidate the user?