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Stress testing (sometimes called torture testing) is a form of deliberately intense or thorough testing used to determine the stability of a given system, critical infrastructure or entity. Stress testing involves testing the application under varying load.
A cardiac stress test (also referred to as a cardiac diagnostic test, cardiopulmonary exercise test, or abbreviated CPX test) is a cardiological test that measures the heart 's ability to respond to external stress in a controlled clinical environment. The stress response is induced by exercise or by intravenous pharmacological stimulation.
A stress test, in financial terminology, is an analysis or simulation designed to determine the ability of a given financial instrument or financial institution to deal with an economic crisis.
Stress testing is a software testing activity that determines the robustness of software by testing beyond the limits of normal operation. Stress testing is particularly important for "mission critical" software, but is used for all types of software.
The Trier social stress test ( TSST) is a laboratory procedure used to reliably induce stress in human research participants. It is a combination of procedures that were previously known to induce stress, but previous procedures did not do so reliably. It was created in 1993 at the University of Trier by Clemens Kirschbaum and colleagues. 
The highly accelerated stress test (HAST) method was first proposed by Jeffrey E. Gunn, Sushil K. Malik, and Purabi M. Mazumdar of IBM.  The acceleration factor for elevated humidity is empirically derived to be. where RHs is the stressed humidity, RHo is the operating-environment humidity, and n is an empirically derived constant (usually 1 ...
The above relations () are three bijections (one to one relations) in three sharing edges but otherwise separate subdomains, which altogether make the entire two parameter domain (half-plane) of biaxial tests stress states.The explicit reverse relations (), easily obtainable from the above formulae, are very convenient for numerical computations, because they enable determination of the value ...