Semiotics is the study of signs and semiotic techniques are the essence of communication between designers and users at the time of interaction; desainer somehow have to be present in the interface to tell the user how to use the signs that make up a system or program. This approach, which builds on? But it goes much further than? User-centered approach is dominant, allowing designers to communicate their vision as a whole and because it helps users understand the design? Not just an icon to click. According to a report de Souza, both designers and users of the other person in the communication process as a whole is going through an interface of words, graphics, and behavior. With clutch semiotic theory and engineering, de Souza approach to HCI design covering the principles, materials, processes, and the possibilities for producing discourse meaningful interactive computer system and achieve a broader perspective of the cognitive approach, ethnography, or ergonomics. De Souza begins with a theoretical overview and detailed explanations of the account of semiotic engineering of HCI.