A Mathematical Reliability Growth Model using for Acute HPA Axis Responses, Heart Rate and Mood Changes to Psychosocial Stress in Human at Different Times of Day

There is evidence showing that HPA axis responses to pharmacological provocation depend on time of day with larger cortisol responses in the afternoon and evening compared to the morning hours. However, it is still unknown whether HPA axis responses to psychological stress are affected by time of day and whether they can be assessed with equal reliability in the morning and afternoon, respectively.Software Reliability Model is categorized into two, one is static model and the other one is dynamic model. Dynamic models observe the temporary behavior of debugging process during testing phase. In Static Models, modeling and analysis of program logic is done on the same code. A Model which describes about error detection in software Reliability is called Software Reliability Growth Model. This paper reviews various existing software reliability models and there failure intensity function and the mean value function. On the basis of this review a model is proposed for the software reliability having different mean value function and failure intensity function. Finally we conclude our Mathematical results in the (4.1.figure) are well fitted with the Reliability Growth model and the maximum value of ACTH, Salivary cortisol, Total plasma cortisol, at the time has been obtained. This will be helpful for the medical professional.