Welcome to Quality Digest’s 2008 SPC Software Directory featuring 93 companies that responded to our requests for information. These companies produce or distribute software applications assisting with ANOVA, capability analysis, control charting, data mining, DOE, FMEA, gauge R&R, regression analysis, reliability analysis, and similar functions. If provided, descriptions of their products can be found at www.qualitydigest.com/content/buyers-guides . As with all Quality Digest guides, the 2008 SPC Software Directory is in no way meant to endorse or exclude any specific organization. Rather, it should be used as the starting point in the data-gathering process. Readers are encouraged to contact these companies directly for more information.