A method evaluation decision chart (MEDx chart) for judging method performance.

OBJECTIVE

To introduce a new graphical tool that improves the process of making decisions about method performance.

DATA SOURCES

Scientific literature, mathematical models, and the author's experience.

STUDY SELECTION

Not applicable.

DATA EXTRACTION

Not applicable.

DATA SYNTHESIS

Relationship to charts of operating specifications (OPSpecs charts) provides guidance for classification of performance as poor, marginal, good, or excellent.

CONCLUSION

Objective decisions on the performance of methods can be made quickly and easily with the aid of a Method Evaluation Decision Chart.