The Time to Event Format and the Dates Format enable you to enter either a single column or two columns as Time to Event or Timestamp, respectively. The Concurrent Systems and the Parallel Systems enable you to enter one column corresponding to each level of the System ID variable. There are examples of multiple-prototype data tables in the Reliability folder of the Sample Data folder: Concurrent Systems.jmp for Concurrent Systems and four tables with the prefix Parallel Systems for Parallel Systems.
In particular, exact failures times can be represented in one of two ways: As times given by a single time column, or as intervals with identical endpoints, given by two time columns.
If testing terminates based on a specified number of failures, we say that the test is failure terminated. If testing is terminated based on a specified time interval, we say that the test is time terminated. The likelihood functions used in the Reliability Growth platform reflect whether the test phases are failure or time terminated.
Reliability growth testing often involves several phases of testing. For example, the system being developed or the testing program might experience substantial changes at specific time points. The data table conveys the start time for each phase and whether each phase is failure or time terminated, as described below.
If the failure time for the last failure in Phase A is exact and if that time differs from tB, then Phase A is considered to be time terminated. The termination time is equal to tB.
If the failure time for the last failure in Phase A is exact and is equal to tB, then Phase A is considered to be failure terminated.

Help created on 9/19/2017