ABSTRACT
In their professional activities, users have to perform multiple tasks, and some of them are performed only once. In most cases, computer-based tasks do not possess rigorous standardized methods of performance as is observed in mass production processes. In human-computer interface (HCI) tasks, a user often does not know in advance the sequence of actions he or she must take, and even experienced users should discover the details of the task performance through an exploratory activity. Hence, continuous self-learning through explorative activity is an important component of users’ professional activity. Even when there are standardized requirements for task performance, users still have some degree of freedom in task performance. HCI always involves self-learning, exploration, and individualized strategies of tasks performance (Sengupta and Bedny 2008). The more complex the task is for the user, the more important self-learning and explorative strategies are during task performance.
