Various levels of human stress & their impact on human computer interaction

Stress is defined as organism's total response to environmental conditions or stimuli. It actually defines the condition that has an impact on the individual's mental and physical health. Crossing a stress level (threshold) is responsible for the changes. In this paper we discuss how stress plays an important role in human computer interaction (HCI) and how a human interacts with any problem domain. We will discuss human approach on stand-alone systems and certain devices on which user's final outcome will be fixed and well defined. This study is based upon study on two different age group students (16 to 23 and 21 to 28 age group). We find there is unique similarity in behavior of all people towards computer system. As per study we classify human stress in six categories. The stress is changes from one form to other form as per the task. Human stress affects problem solution, solution time and system usability. Human generate various path towards the solution as well as creates various path towards solution to problem statement and this process is discussed in detail in this paper.