Accelerated life testing is a testing methodology designed to expedite the collection of product failure data by subjecting items to stress levels exceeding normal operational conditions. This approach investigates the relationship between elevated stress and product life or performance degradation over time. Its key characteristics include the application of intensified environmental or operational factors to induce failures more rapidly than under typical use, and the subsequent use of statistical models to extrapolate the observed failure data and predict product reliability or lifespan under standard operating conditions. The significance lies in enabling the rapid assessment of highly reliable components or systems, reducing the time and cost associated with traditional life testing, and providing crucial data for reliability prediction, design validation, and warranty estimation.