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Test Design Assistant

ALTA Test Plan Utility Example

ALTA Test Plan Utility

The ALTA Test Plan utility is a planning tool that helps you design a one-stress or two-stress accelerated life test that will reduce the estimation uncertainty of product life under normal operating conditions. It generates a test plan with recommendations for what stress levels should be used in the test and how many units should be tested at each stress level.

Follow the steps outlined below to generate a recommended test plan.

If you want the test plan to display both the percentage and the quantity of test units allocated to each stress level, choose Show Allocations as Qty and then enter the total number of units that will be available in the Number of Units Available field.

Tip: If your product's underlying life distribution is exponential, select Weibull from the Life Distribution drop-down list and enter 1 in the Beta field. This is equivalent to using an exponential distribution.

 

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