Human computer interaction (HCI) that occur in the User Interface different role in the system performance. Based on the Technology Acceptance Model (TAM), which is the model that describesWhen it was offered a trial with this system. And the effects of this test will conform to the duty of perceived usefulness (PU) and perceived ease of use (PEOU) importance and design. User Interface of every system.By considering the effect related to external impact, through the system.