Quality is not only about ensuring your product is well-made and safe, it’s also about continually improving the consistency and efficiency of your process. Presage Analytics adapts to the latest food safety regulations and simplifies the process of monitoring compliance with intelligent tools and features.
Presage includes built-in Statistical Process Control (SPC) using the industry-standard Western Electric (WECO) rules. Get instant feedback when your process is trending out of control, even when you are well within conformance standards. You can adjust your process at the first sign of trouble, avoiding costly downtime, rework, or recalls. Statistical Process Control is also important as a retrospective tool. Using the Control Chart in Presage, you can evaluate how changes to your process affected outcomes, and hone in on precise process adjustments to ensure consistency and quality.
What is SPC and WECO?
Statistical Process Control (SPC) is a method of monitoring and controlling a process using statistical methods. The Western Electric (WECO) rules is a set of guidelines for identifying and interpreting patterns in data that may indicate a problem with a process. The rules are used to identify shifts, trends, and other patterns in the data that may indicate that a process is not operating within acceptable limits.
WECO Rules
The Western Electric ruleset consists of six main rules, each designed to detect a specific type of process variation.
Rule 1: Any point outside the 3-sigma control limits is considered an outlier and signals a possible problem with the process.
Rule 2: Nine or more points in a row on one side of the centerline signal a possible shift in the process.
Rule 3: Six or more points in a row alternating up and down signal a possible cyclical pattern in the process.
Rule 4: Four or more points in a row on either side of the centerline signal a possible trend in the process.
Rule 5: Two out of three or more consecutive points in a row on one side of the centerline signal a possible shift in the process.
Rule 6: Four or more points in a row that are not in a straight line signal a possible non-random pattern in the process.
Schedule A Demo
By monitoring a process using these rules, it is possible to detect changes in the process that might indicate a problem and take corrective action before the problem becomes severe. With built-in SPC, Presage Analytics provides the tools you need to always be on top of your plant’s processes. Schedule a demo today to learn more about Presage.
