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what is the Bracketing & Matrixing.
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Answer Posted / a s n kumar (makson industri
.Both Matrixing & Bracketing’s are reduced stability testing designs
Bracketing
The design of a stability schedule, such that only samples of extremes of certain design factors (ex:strength,package size) are tested at all time points as in full design.The designs assumes that the stability of any intermediate level is represented by the stability of extremes tested.
Matrixing
The design of a stability schedule, such that a selected subset of possible samples for all factor combinations is tested at a specified time point.At a subsequent time point another subset of samples for all factor combination is tested.The design assumes that the stability of each subset samples tested represents the stability of all samples at a given time point.
There for a given time point other than initial & final ones not every batch on stability needs to be tested.
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