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Model
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Description
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Logistics
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Takes into account all process grade factors, including Induced (Pi I) and Cannot Duplicate/No Defect Found (Pi N), so that the external conditions affecting the actual reliability in the field are considered.
The equation for the Logistics model is:
Pi P * Pi IM * Pi E + Pi D * Pi G + Pi M * Pi IM * Pi E * Pi G + Pi S * Pi G +Pi I + Pi N + Pi W
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Inherent
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Takes into account all process grades factors but Induced (Pi I) and Cannot Duplicate/No Defect Found (Pi N) so that the external conditions affecting the actual reliability in the field are not considered.
The equation for the Inherent model is:
Pi P * Pi IM * Pi E + Pi D * Pi G + Pi M * Pi IM * Pi E * Pi G + Pi S * Pi G + Pi W
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