The Measurement Software Toolkit is a collection of documents and software that may be downloaded by registered users.
Calculation
of measurement uncertainty is the main theme. There are documents in
the Toolkit about different methods of uncertainty calculation,
including Monte Carlo methods and the proprietary GUM Tree method. There
are also software libraries that implement
the GUM Tree method. These include add-ins for Microsoft Excel and a library written in R .
A
topic of particular interest is the calculation of uncertainty for
complex-valued quantities. This is important in a number of areas,
including AC electrical and RF and microwave measurements.
A new area of interest is spreadsheet checking and validation. An Excel
add-in that provides worksheet function assertions is now included in
the toolkit. It has been designed for spreadsheet and worksheet
function testing .