base line testing

Base linesBase lines are commonly used as metrics to compare the results with future test results to know the applications performance. Base lines can be prepared for individual or entire layers of the application, i.e. for single component, a group of components or entire application. Base lines can be prepared independently for application, database servers, application servers etc.Before capturing the baselines for the application, one should know in and out of the application. Then only baselines can be captured properly. After every change done to the application, it will undergo a series of performance testing again and compared the results with baselines to see if there are any considerable changes. Base line results can be normally response times, throughput, no of transactions per sec, no of web pages delivered per sec etc…You can not always take the base lines as a standard comparison every time. It is because when the application changes over time, you need to take new base lines again as a standard. It happens mainly when there is lot of change in the application at the time when you first captured base lines and the application in today’s time.