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The QMSys GUM Software is suitable for the analysis of the uncertainty of physical measurements, chemical analyses and calibrations. The software uses three different methods to calculate the measurement uncertainty. GUF Method for linear models, this method is applied to linear and quasi-linear models and corresponds to the GUM Uncertainty Framework. The software calculates the partial derivatives (the first term of a Taylor series) to determine the sensitivity coefficients of the equivalent linear model and then calculates the combined standard uncertainty in accordance with the Gaussian error propagation law. GUF Method for nonlinear models, this method is provided for nonlinear models with the symmetric distribution of the result quantities. In this method, a series of numerical methods are used, e.g. nonlinear sensitivity analysis, second and third-order sensitivity indices, quasi-Monte Carlo with Sobol sequences.

EasyPlanEx is a robust and user-friendly tool designed for assessing, optimizing, and documenting capital projects, with bilingual functionality in English and Spanish. Unlike conventional spreadsheet software, EasyPlanEx addresses five critical issues: 1. It automatically evaluates multiple scenarios rather than limiting analysis to a single project configuration. 2. It conducts risk analysis using Monte Carlo simulations, incorporating probabilities for uncertain variables instead of relying on fixed values. 3. Its modeling employs clear statements like Sales=Volume*Price, avoiding cryptic formulas prone to errors. 4. Its documentation feature and transparent modeling enhance teamwork and facilitate reviews by upper management. 5. When integrated with MultiPlanEx-DB, users can manage and query a database of projects efficiently. To support users, EasyPlanEx offers in-context help for any section, label, or option, alongside an introductory self-learning course and videos.