The expression of uncertainty in measurement poses a challenge since it
involves physical, mathematical, and philosophical issues. This problem
is intensified by the limitations of the probabilistic approach used by
the current standard (the GUM Instrumentation Standard). This text
presents an alternative approach. It makes full use of the mathematical
theory of evidence to express the uncertainty in measurements. Coverage
provides an overview of the current standard, then pinpoints and
constructively resolves its limitations. The text presents various tools
for evaluating uncertainty, beginning with the probabilistic approach
and concluding with the expression of uncertainty using random-fuzzy
variables. Numerous examples throughout help explain the book's unique
approach. The book is designed for immediate use and application in
research and laboratory work.