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Quality Control Charting Software Targets C# and Visual Basic .Net

For Immediate Release - January 2006

Boston, Mass. - January 16, 2006 - Quinn-Curtis, Inc. introduces SPC Control Chart Tools  for .Net, an object oriented, .Net based toolkit aimed at developers who want to add static and dynamic quality control charts to their C# and Visual Basic for .Net applications. Typical users are SPC engineers and other quality control professionals creating .Net based applications that will be used to monitor critical quality factors in manufacturing, process, and service industries. The feature rich toolkit includes templates for the most common SPC control chart types: variable control charts (X-Bar R, X-Bar Sigma, Individual Range and Median Range charts), attribute control charts (p-, np-, c-,  and u-charts), frequency histograms, probability charts and Pareto diagrams. The software will automatically calculate SPC control limits using historical data for the supported variable control chart and attribute control chart types. The software will automatically calculate process capability ratios (Cp, Cpl, Cpu, Cpk and Cpm) and process performance indices (Pp, Ppl, Ppu and Ppk). Users are able to interact with charts: adding annotations, defining custom tool-tips and editing notes. There is no comparable product for .Net available at any price.

The SPC Control Chart Tools for .Net software has as a foundation the Quinn-Curtis QCChart2D charting software, and can be purchased as either an add-on to that software, or in combination with it. As and add-on to the QCChart2D software the cost for a single developer license is $200. Purchased in combination with the QCChart2D software the cost per developer is $300. The user is entitled to free updates of the software for a period of two years. A 30-day trial version of the software is available from the Quinn-Curtis web site.

The SPC Control Chart Tools for .Net is a family of chart templates and support classes that integrate the QCChart2D charting software with tables, data structures and specialized rendering routines used for the static and dynamic display of SPC charts. The SPC chart templates are pre-programmed classes that create, manage and display the graphs and tables corresponding to major SPC control chart types. Each template can be further customized by the programmer, using method and properties, allowing tremendous flexibility in the look of the SPC charts.

Selected features include:

bulletVisual Studio .Net - Compatible with C# and VB in all versions of Visual Studio .Net.
bulletBased on the .Net Drawing and Drawing2D API - Compatible with .Net components and applications.
bulletVariable Control Chart Templates - X-Bar R - (Mean and Range), X-Bar Sigma, (Mean and Sigma), Median and Range, X-R (Individual Range Chart).
bulletAttribute Control Chart Templates - p-Chart (Fraction or Percent of Defective Parts, Fraction or Percent Non-Conforming), np-Chart (Number of Defective Parts, Number of Non-Conforming), c-Chart (Number of Defects, Number of Non-Conformities ) and u-Chart (Number of Defects per Unit, Number of Non-Conformities Per Unit ).
bulletOther SPC Chart Templates - Frequency Histograms, Normal Probability Plots with probability scales and axes, and Pareto Diagrams.
bulletIntegrated Table Support - Sampled and calculated data values can be as part of the SPC Control chart. Every sample subgroup has a pop-up notes text edit box where an operator can add observations.
bulletIntegrated Frequency Histograms – The variable control charts and attribute control charts can display a frequency histogram of the process variable side by side with the main SPC chart.
bulletCustomize Chart Objects - All of the plot objects created in the SPC chart templates are accessible to the programmer, allowing tremendous flexibility in the look of the SPC charts.
bulletSPC Control Limit Calculations - SPC Control limits can be set explicitly, as the result of your own calculations, or the limits can be automatically calculated at 1-, 2- and 3- sigma levels using our own internal routines.
bulletData Tooltips - Integrated data tooltips display chart data values in a popup window.
bulletAuto-Scaling - The y-axes of the SPC charts can be auto-scaled to display all data and control limits, or the minimum and maximum value of the y-axis can be explicitly set.
bulletVariable SPC Control Limits – Control limits can either be fixed, or they can vary with time.
bulletMultiple SPC Control Limits – Control limits can be placed at 1-sigma, 2-sigma and 3 sigma levels for high and low SPC control limits.
bulletControl Limit Alarm Events - Alarm events can be triggered whenever a process variable exceeds an SPC control limit.
bulletProcess Capability Ratios and Process Performance Indices – Automatic calculation and display of process capability ratios (Cp, Cpl, Cpu, Cpk and Cpm) and process performance indices (Pp, Ppl, Ppu and Ppk) (Added Aug. 1, 2006)
bulletPrinting and Image Rendering – The SPC Charts, including the integrated tables, can be output to any Windows supported printer and .Net supported image files, including BMP, JPG; GIF; TIFF and PNG. Images can be created on a headless server and delivered up in real-time to a web site.
bulletIntegrated Scrolling -  A scroll bar option permits the user to window in on 8-20 sample subgroups at a time, from a much larger collection of measurement data, representing hundreds or even thousands of subgroups, and move through the data, similar to paging through a spreadsheet. The scroll bar control can be used with static or dynamic SPC Charts.
bulletData logging - SPC data values can be logged to disk in the CSV (comma separated value) format, for import into spreadsheets and other programs.
bulletDynamic Updates of SPC Charts - SPC Charts can be updated and control limits re-calculated in real-time.
bulletVB and C# Documentation and Demo/Example Programs - The software includes a comprehensive 300 page user manual with many programming examples, XML help for every class. Every programming example and example program is presented in C# and Visual Basic.

 

The software is written entirely in C# and works with all platforms and browsers compatible with Microsoft .Net Framework. Applications created using the software run on all Windows versions from Windows 98 to the current version of Windows XP.  The recommended development environment is Microsoft Visual Studio for .Net configured for the C# and/or the Visual Basic programming languages.

Product details are found at: http://www.quinn-curtis.com/QCSPCChartProdPage.htm

Quinn-Curtis, Inc. has been providing programmers and end-users with innovative charting and real-time graphics technologies for 21 years.  For more information, contact Quinn-Curtis, Inc., 18 Hearthstone Dr., Medfield MA 02052 USA. Phone: 508-359-6639. Fax: 508-960-2729. E- mail: support@quinn-curtis.com. Internet: http://www.quinn-curtis.com.