Accelerated test data analysis and test plans for multiple stresses and constant or time varying stress profiles
Accelerated Life Testing, formerly known as ALTA software, is an advanced module application available in ReliaSoft Weibull++ for accelerated test planning and quantitative accelerated life testing data analysis. It supports a complete array of utilities for designing accelerated life tests, evaluating the fit of the model, calculating reliability metrics, generating plots and performing related statistical analyses. Additionally, it provides the life-stress relationships required to analyze accelerated life test data with up to 8 simultaneous stress types, where stress is constant or varies with time.
Accelerated test data analysis and test plans for multiple stresses and constant or time varying stress profiles
Accelerated Life Testing, formerly known as ALTA software, is an advanced module application available in ReliaSoft Weibull++ for accelerated test planning and quantitative accelerated life testing data analysis. It supports a complete array of utilities for designing accelerated life tests, evaluating the fit of the model, calculating reliability metrics, generating plots and performing related statistical analyses. Additionally, it provides the life-stress relationships required to analyze accelerated life test data with up to 8 simultaneous stress types, where stress is constant or varies with time.
Discover how Weibull++'s Accelerated Life Testing module can help you achieve desired results faster
Analyze accelerated life test data with up to 8 simultaneous stress types, where stress is constant or varies with time.
Design accelerated tests to achieve desired results
Complete the most complex accelerated life testing analyses in a clear and user-friendly interface to obtain necessary metrics.
Evaluate your product performance using reliability metrics and analyses. Improve your initial designs based on accelerated life testing data in a variety of available formats and stress models.
Predict long-term reliability metrics with minimal test time using life data from stress testing.
Import and process signals or time series data from nCode GlyphWorks .s3t files and subsequently utilize the post-process profiles for reliability calculations.
Quickly provide the results, plots and reports you need to support decisions with flexible tools and automation.
Two versions to support how you analyze data obtained from quantitative accelerated life tests
This version is intended to be an entry-level tool for the reliability professional interested in basic quantitative accelerated life testing data analysis applications.
This version provides advanced capabilities made possible by extensive research and development in complex quantitative accelerated life testing data analysis techniques.
Standard | PRO | |
Life Distributions | Both versions support Weibull, lognormal and exponential. | |
Life-Stress Relationships |
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All of the ALTA Standard models plus:
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Parameter Estimation | Both versions provide Maximum Likelihood Estimation (MLE). | |
Stresses | Provides models that can analyze data with 1 or 2 stresses that do not vary with time. |
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Confidence Intervals | Both versions provide confidence intervals on calculated results and plots. | |
Analyze data with indicator variables (stress is on/off, lot, etc.) | No | Yes |
Monte Carlo Data Generation | Available for supported models only. | Available for all models, including those with multiple and/or time-dependent stresses. |
Accelerated Test Plan Utility | Both versions provide access to the accelerated test planning utility. |
Weibull++'s Accelerated Life Testing module is the best package I've seen for accelerated life testing.

Weibull++'s Accelerated Life Testing module is the best package I've seen for accelerated life testing.
