QC SPC Chart Intro Version August 2018

The QC SPC Chart software is an interactive Statistical Process Control chart application tailored for quality control professionals and students seeking to analyze industry-standard statistical quality control charts on their mobile devices. Users can effectively monitor critical quality metrics within manufacturing, process, and service sectors and visualize the outcomes across a wide array of supported chart types, including variable control charts such as XBar-R, XBar-Sigma, Individual-Range, and Median-Range, in addition to attribute control charts like p-, np-, c-, u-, and DPMO charts.

The application efficiently calculates SPC control limits based on historical data for both variable and attribute control chart types. It provides the option to set alarms for standard +3 sigma control limits or adhere to the WECO (Western Electric) rules. Moreover, it computes process capability ratios (Cp, Cpk) and process performance indices (Pp, Ppk), while enabling users to incorporate specification limits into the charts.

Displayed as synchronized one or two chart views controlled by a scroll bar or optional zoom feature for custom time frame display, the SPC charts maintain auto-scaling of the y-axes for enhanced visibility. An integrated table positioned above the chart offers detailed information about the observed process, individual sample values, sample statistics, process indices, alarm status, and any accompanying notes for each sample interval plotted.

Users can personalize their SPC charts and control limits via built-in setup forms supporting both auto-calculated and manually set control limits. Sample data can be inputted or edited within the program or imported from CSV files. The entire chart setup and data can be conveniently saved on the host device for future access, with an option to autoload the most recent configuration on app start-up.

Recommended for devices with a minimum resolution of 1200x800 pixels in either landscape or portrait mode due to the substantial amount of information displayed concurrently on-screen. The student version restricts the display of sample intervals to a maximum of 100 data points at a time.