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The main objective of defining the cells in the LAM is to provide an explicit focus for taking action. Actions on these cells may include any of the following:
Eliminate it as not relevant.
Eliminate it as inconsequential.
Identify it as important but it will be monitored during operation.
Use knowledge from prior engineering performance.
Use fundamental knowledge to estimate its dependence.
Conduct go/no go experiments to determine whether it is important.
Conduct accelerated test of varying statistically based extents depending on the problem.
Identify similarities among cells where the same experiments or fundamental constructions can be applied in more than one cell.
However, each cell requires some explicit action. The catalog of these actions becomes part of the design history. If nothing more, acting on each cell stimulates thinking that might not otherwise have occurred.
Lifetime Prediction, Roger W. Staehle, Adjunct Professor, Department of Chemical Engineering and Materials Science, University of Minnesota, Staehle Consulting Co.