Impact of usability problems on identifying key objects on the web

Eye tracking, mainly in the context of usability testing (a testing designed to analyze the usability of a web from the perspective of a user) is increasingly more studied and developed technique nowadays. Some reaseach papers even prove that usage of an eye tracker is superior to survey based testing when it comes to the accurancy of conducted measurements.
In this thesis we focus on analyzing the impact of selected usability problems (problems related to the web that are generally disliked by users) on the ability of a user to identifying a key object related to certain task on the web. A key object in this context refers to an element of a web page which is essential to be noticed or even used by the user to finish a given task. To fufill the goal of this thesis an experiment on multiple participants will be conducted. Analysis of the experiment will be done using data provided by an eye tracker. Desired outcome of the analysis is concluding which usability problem affect user the most. Results could provide useful guidlines to follow during designing a new web or administrating an old one.