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UncertaintyAnalyzer Measurement Uncertainty Analysis Software from Integrated Sciences Group  UncertaintyAnalyzer Program Features


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UncertaintyAnalyzer ($995 USD) is a user-interactive measurement uncertainty analysis application that implements and extends the techniques and methods of the ISO Guide to the Expression of Uncertainty in Measurement (the ISO GUM).  Consequently, UncertaintyAnalyzer greatly facilitates compliance with ISO 17025 and ANSI/NCSL Z540.3.  UncertaintyAnalyzer 3.0 runs in Windows XP, 7, 8 and 10 operating systems.


Whether you’re a scientist, design engineer, production engineer, test engineer, metrologist, or anyone else concerned with measurement accuracy, you need to know only information that falls within your technical specialty.  UncertaintyAnalyzer furnishes the statistical expertise, while you furnish the technical knowledge.

Our customers consider it to be the Swiss Army Knife of uncertainty analysis software products.  Through its many advanced analysis and reporting features, UncertaintyAnalyzer 3.0 incorporates the expertise of engineering, physics, statistics, decision theory and measurement science disciplines to provide the most comprehensive measurement uncertainty analysis tool available. Key program features are outlined below.  Detailed information and screen shots for each feature can be accessed via associated hypertext links.  
Print quality product brochure and program features files are available in Adobe Acrobat pdf format via the hyperlinks below. 
To view these documents, you will need Acrobat reader 6.0 or higher.  Click Acrobat Reader to download a free copy.  To download the product files directly to your computer, right-click  the appropriate link and select Save Target As.  


 Product Brochure


Details and Screen Shot Links

Analysis of Direct Measurements

  • Every aspect of the measurement uncertainty analysis process can be accessed via the Main Screen

  • Main Screen menu and tool bars, measurement uncertainty analysis procedure checklist, and measurement process error list provide quick access to drill-down analysis screens and worksheets.

  • Information about the subject parameter being analyzed, the measurement process uncertainties, and the overall combined measurement uncertainty are all summarized on the Main Screen.  


Analysis of Multivariate Measurements

  • The User Defined Error Worksheet is the primary screen for analyzing uncertainties for multivariate measurements.

  • The model equation for computing the parameter value of interest can contain up to 1,000 root variables or quantities.

  • Model equations can also contain an unlimited number of nested variables, each defined by a separate equation.

  • Root variables and associated uncertainties are analyzed via the Error Source Uncertainty Worksheets.

  • Sensitivity coefficients for root variables are automatically computed via numerical partial differentiation of the model equation.

  • The user has the option of entering sensitivity coefficient equations in lieu of automatic partial differentiation.

  • All equations are entered in the extremely versatile and non-proprietary VB Script format.


Analysis of Measurement Systems

  • The System Model Screen is used to analyze uncertainties for linear measurement systems.

  • The System GUI Screen provides a full-featured graphical user interface (GUI) for building interactive measurement system diagrams.

  • Measurement Systems can contain up to 10 component modules arranged in series. 

  • Each module can be analyzed as a multivariate measurement comprised of up to 30 root variables.

  • Measurement uncertainties for each module are computed, summarized and propagated through the measurement system.

  • System module information can be saved in an external file (*.mdl) for use in other analyses.

  • Built-in database and module library access and module library update screens provide a useful tool for managing module files. 


Abundant On-Screen Information

  • The Analysis Guide Screen provides a tree-view presentation of measurement uncertainty analysis concepts and methods, program features, operating procedures, analysis examples and other topics.

  • Interactive analysis procedure checklists provide a short, structured walk-through of the basic steps in estimating measurement uncertainty for typical measurement scenarios. 

  • Major screens and worksheets contain detailed procedures with hypertext links to program functions.

  • All screens and worksheets contain context sensitive Info buttons.

  • All screens and worksheets have access to a full-featured on-screen Help with index, content, and search capabilities for over 700 topics.


Advanced Features

  • Uncertainty Growth Projection for the subject parameter under evaluation can be estimated via the Reliability Model Worksheet.

  • The SMPC Analysis Screen can be used to obtain the best estimates of both the subject parameter and measuring parameter values using Bayesian methods.

  • The Sample Statistics Screen can be used to compute Statistics for Selected Cells (i.e., sample subset), test for and Remove Outlier Data, and to conduct Normality Testing.  

  • The built-in Type B Degrees of Freedom Calculator provides a useful tool for estimating the degrees of freedom for heuristic (i.e., non-statistical) measurement uncertainty estimates.

  • The SpecMaster Worksheet provides a powerful tool for determining tolerances for parameters with complex specifications.

  • The built-in Measurement Units Database contains over eighty measurement areas and several hundred units in compliance with NIST Special Publication 811. Nearly two dozen new measurement areas and a hundred units have been added to facilitate working with specifications for wide range of measurement and test equipment.

  • The built-in Instrument Database can be used for storing and retrieving instrument and parameter specifications.

  • External Windows applications can be run from within UncertaintyAnalyzer via the Run External Application Screen.

  • UncertaintyAnalyzer also fully integrates with other ISG applications for enhanced measurement analysis capability, including the ability to import Uncertainty Sidekick Pro files.


Data Importing

  • Measurement units, measuring equipment and samples of measurement data can be imported into UncertaintyAnalyzer from external database or other file formats.  

  • The Data Import Profile Screen is used to develop an import profile, cross-reference external field data to UncertaintyAnalyzer fields and to run imports.

  • The Data Import Profile Screen allows the user to view the data prior to importing into UncertaintyAnalyzer.

  • The Windows Copy & Paste functions are also supported on all program screens and worksheets.


Drill-down Worksheets for Analyzing Measurement Process Errors


Analysis of Type A, Type B and Type A,B Estimates

  • The measurement uncertainty estimate type is automatically determined based on user data entry.

  • Degrees of freedom are computed for all measurement uncertainty estimate types.

  • Type B error limits can be computed as a linear or root-sum-square (RSS) combination of a fixed value, % of nominal or reading, % of full scale, and % of range or other components.

  • Measurement uncertainty estimates and associated statistics for User Defined Errors can be imported from other UncertaintyAnalyzer files via the Error Source Uncertainty Worksheets.

  • The Copy Error Source function also allows users to copy information from one Error Source Uncertainty Worksheet to another to reduce duplication of data entry in cases where two or more error sources are similar


Measurement Configuration Options

  • Users can choose from a list of measurement configurations via the Measurement Configurations Screen.  

  • Selecting a measurement configuration instructs UncertaintyAnalyzer to de-activate screens and worksheets that are not required for the measurement uncertainty analysis.

  • Selecting a measurement configuration also instructs UncertaintyAnalyzer to activate special analysis screens, where appropriate.


Correlation of Error Sources

  • All error sources are assumed to be uncorrelated unless otherwise specified by the user.

  • The Correlation Analysis Screen assists the user in establishing correlations between error sources.

  • Correlation coefficients can be entered directly or computed from data pairs.

  • Correlation coefficients are automatically included in the computation of the total, combined measurement uncertainty.


Notes Pages for All Analysis Levels

  • There are built-in notes pages for each uncertainty analysis worksheet or screen to store images and text.

  • Notes pages are automatically saved with each analysis and can also be saved externally as rich text format files.


Analysis Description Screen 

  • The Analysis Description Screen provides a separate screen for entering text and graphics information that describe the overall analysis, measurement process, etc.

  • This screen also provides easy access to other notes pages. 

  • The screen contents are automatically saved with each analysis. 

  • Analysis descriptions can also be saved as external rich text format files.


Charts and Plots

  • Parameter bias distribution plots are automatically displayed on the Parameter Bias Uncertainty Worksheets.  

  • Process error distribution plots can also be displayed via the Main Screen.

  • A histogram plot of sampled data can be displayed on the Measurement Data Entry Worksheets

  • The Pareto Chart Screen displays a bar chart depicting the relative contributions of Type A, Type B, and Type A,B process uncertainties to the total, combined uncertainty.


Comprehensive Analysis Reports

  • A variety of reporting levels are available including summary reports and "drill-down" reports for complete communication of analysis results.

  • The Report Options Screen can be used to tailor the contents of each analysis report.

  • Notes, charts and plots can be selected for inclusion on report pages.

  • The Print Preview Screen provides navigation through reports pages prior to printing.

  • Analysis reports can be saved in MS Word, Rich Text or HTML file formats via the Print Preview Screen.

  • Analysis reports can also be copied and pasted as images in Word, Excel, PowerPoint or other external application. 




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Integrated Sciences Group
14608 Casitas Canyon Road Bakersfield, CA 93306
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Page Updated February 06, 2018