WinSPC offers intuitive Quality data entry and can capture independently from your CMMs, ERP and other sources. Optimizing manufacturing processes begins with capturing and charting data, and generating real-time alarms based on trends and rule violations in that data. WinSPC’s Data Collection window is typically setup so that, on its left, users are guided through … Continued

Congratulations on becoming the newest quality manager Getting promoted at work may be the realization of a dream. You struggle, fighting tooth and nail until you get the recognition you deserve. However, many aspiring managers think less about the difficulties in succeeding in this job. Once you are in a management position, the spotlight is … Continued

When something goes wrong, we naturally react. If a product fails or a process performs inadequately, we attempt to discover what’s wrong so we can fix it. That sounds reasonable enough. But by reacting to the problem, we’re allowing that process or product failure to control our behavior. Isn’t it more effective to understand and … Continued

With a few clicks of the mouse, you can set up WinSPC to generate reports at scheduled intervals that meet key Quality needs. WinSPC is designed to generate reports quickly and easily. Using the Administrator window, all you need to do, is right-click an item that contains data, mouseover Preview, and select a report template. … Continued

An approach to deploying control charts with short production runs is to utilize charts of common characteristics across different products. This chart pertains to the characteristic of interest (e.g., diameter) rather than for the diameter of a specific design. A single chart can monitor the characteristic even though the nominal values (and specifications) are different. … Continued

WinSPC timed data collection can reduce labor time associated with collecting data. WinSPC has the ability to prompt a device to send a reading, or prompt the operator that a reading is required, at certain intervals or at specific times during Data Collection. This can free up the operator from having to prompt a device at … Continued

Before applying statistical methods that assume normality, it is necessary to perform a normality test on the data. Figure 1: Histogram depicting a normal (bell-shaped) distribution in WinSPC For example, all of the following statistical tests, statistics, or methods assume that data is normally distributed: • Hypothesis tests such as t tests, Chi-Square tests, F … Continued

More companies are leveraging high speed vision systems to inspect multiple quality characteristics on their products. This testing directly on the line is a major advancement in inspection and measurement methods.  Automation allows data to be collected quickly and efficiently and 100% inspection becomes feasible.  A common question that arises is, “Does my 100% automatic … Continued

This article will review statistical hypothesis testing in general and then introduce equivalence testing and its application. What is equivalence testing and when should we use it? Most quality professionals are familiar with basic hypothesis tests such as the 2-sample t test. However, depending on the goals of the study, another type of test, called … Continued