Specialized knowledge alone is not enough to guarantee success; communication skills are also vital. According to a survey, the most important skills for career success are oral communication, listening ability, enthusiasm, and written communication skills, while technical competence and work experience are less important. The most successful graduates have a desire to persuade others, an interest in talking and working with people, and an outgoing personality. Effective communication involves a sender, message, encoding, channel, receiver, decoding, feedback, and can be impacted by physical, physiological and psychological noise as well as the physical, social, cultural and chronological context. When communication goes wrong, it is important to diagnose which parts of the communication process contributed to the trouble in order to improve.