SQCpack - Quality Improvement Simplified

GAGEpack gage calibration software

Intuitive SPC Software for Simplifying Quality Improvement

What is SQCpack? SQCpack is a robust Statistical Process Control (SPC) application that will help you easily analyze your data, understand and improve your processes, and communicate important quality information.

SQCpack includes the statistical process control tools necessary to help you optimize quality, all in one easy-to-use software solution.

SQCpack is an easily scalable software solution. Whether it’s for use on a single line or in a global multi-site operation, organizations worldwide have selected SQCpack because of its easy deployment, implementation, and operation.

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Some of the Manufacturing Industries We Serve

  • Transportation Equipment

    Transportation Equipment

  • Plastics & Rubber

    Plastics & Rubber

  • Machinery


  • Primary & Fabricated Metals

    Primary & Fabricated Metals

  • Chemical


  • Computers & Electronics

    Computers & Electronics

  • Food & Beverage

    Food & Beverage

  • Paper & Packaging

    Paper & Packaging

  • Mining


  • Petroleum


Benefits of SQCpack include:

  SPC Charting

An easy-to-use chart wizard that guides users through the process of generating SPC charts.


A real-time process summary dashboard for prioritizing improvements and making data-driven decisions.

  Six-Way Analysis

A combination of six key SPC charts that provides an at-a-glance overview of your manufacturing process.


Real-time SPC alerts so that you can prevent quality control issues with immediate process feedback.

  SPC Data Collection

Data entered directly or from a variety of sources including Excel, CMMs, and handheld measurement devices.

 Capability Analysis

Automatic capability analysis calculations (Cpk, Ppk, Dpm, & more) so that you can produce "better-than-spec" results and ensure processes are on target.


Report templates and create-your-own reports to easily share SPC charts, process capability summaries, critical findings, and Certificates of Analysis.


User security, rights, roles, and divisions to ensure only authorized personnel can work with various levels of the program.

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Some of the features you get with SQCpack:

Increase Customer Satisfaction

Increase Customer Satisfaction

The Certificate of Analysis and Six-Way Analysis™ features in SQCpack can help increase your customer satisfaction and loyalty by clearly proving the quality of your production processes with minimal effort.

In addition, PQ's experienced and reputable team can assist you in interpreting and communicating results, instilling customer confidence and trust.

Communicate Quality Status

Communicate Quality Status

We know that keeping management, customers, and your team informed on quality metrics and results is important to you. SQCpack's StatBoard®, quality reports, and SPC chart sharing tools facilitate communication.

SQCpack is statistical software that will improve information flow, encourage collaboration, and facilitate more informed decision making with others across the plant or around the globe.

Improve Audit Success

Improve Audit Success

SQCpack can help you achieve audit success by keeping quality data organized and easily accessible to address common audit challenges and auditor requests. And with SQCpack's security features, you can enjoy peace of mind knowing your data is protected and you maintain control.

Focus on What's Important

Focus on What's Important

SQCpack helps free your team from unnecessary firefighting with its StatBoard®, alerting, and data entry prompting that call attention to potential issues before they become problems. Perform offline SPC analysis or monitor processes with real-time SPC charting, so you get the feedback you need, when and how you need it.

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"Whenever asked about software for process behavior charts, I have recommended SQCpack from PQ Systems. While the number of SPC software packages has increased dramatically over the years, I find that SQCpack is still on my short list."

Donald J. Wheeler, Ph.D.
Statistical Process Controls

What our customers are saying:

Our clients include Fortune 100 companies and many of their suppliers. They choose PQ Systems because we increase their efficiency while helping protect the integrity of their brands.

  • Honda
  • Caterpillar
  • 3M
  • Dannon
  • Honeywell
  • Pepsi

"PQ Systems is just incredibly professional and easy to work with. We looked at other competing software but none offered the total package as SQCpack does. When combined with their support, price and customer service, there was only one choice for us."

Tim Pratt
Siemens Energy, Inc.

"Soon we will begin our 20th year with PQ Systems and SQCpack. The technology has increased exponentially since we started our journey, but the SQCpack still remains the best choice for process control."

Scott Heatherly
Possehl Connector Services

"Procter & Gamble has used SQCpack very successfully around the world for critical analysis of global business results. SQCpack serves as the basis for major process changes that have improved product quality and lowered costs."

Jim Thompson
Procter & Gamble

What are the tools for SPC analysis?

SPC can be applied to any process where output can be measured. SPC tools are applied to data from a process for statistical analysis to help make informed decisions. Six primary SPC tools can be used for data analysis:

  1. Run Chart
    A run chart is a tool used to interpret data from a system or process by graphing it over time.

  2. Control Chart
    This SPC chart also depicts time ordered data. It takes the run chart a step further with the addition of a line depicting the overall average of the data and control limits that reflect the expected variation in the data. Types of control charts include X-bar Range, X-bar Moving Range, np control chart, p control chart, c control chart, and u control chart.

  3. Histogram
    A histogram is a bar chart of raw data where the bars represent the frequency with which each number occurs. Statistical calculations can be made to show information about the data such as central location, width of spread, and shape.
  1. Capability Analysis
    Capability analysis is a set of SPC calculations used to assess whether a system is statistically able to meet a set of specifications or requirements.

  2. Pareto Chart
    A Pareto chart is a bar chart that displays related measures in decreasing order of occurrence. The purpose is to separate the significant few from the trivial many when conducting SPC analysis. Pareto charts can display costs or counts, depending on what you want to learn.

  3. Scatter Diagram
    A scatter diagram is a type of SPC chart that evaluates the relationship between two factors. One factor is plotted on the horizontal axis and the other on the vertical axis. The pattern formed by the values on the chart indicates whether a relationship exists and the strength of the relationship.

Frequently Asked Questions

What is statistical process control (SPC)?Statistical process control (SPC) is the practice of using statistical techniques such as control charts and capability analysis to monitor and control a process.

Variation can occur at any time in manufacturing processes, making it difficult to predict issues. This variation can result in excessive waste, lost labor hours, rework, and scrap, all which contribute to increased production costs.

Processes are under statistical control when all special causes of variation have been eliminated and only natural or common variation causes remain. Statistical control can be illustrated on a control chart by observing data collection that falls within control limits, and by observing the absence of non-random patterns or trends.

The importance of statistical control is that it shows what the process is capable of producing over time. Statistical process control allows you to make predictions about how the process will run in the future based on how it ran in the past. This helps you see if the process is capable of producing output that meets specifications.

What is statistical process control (SPC) software?Statistical process control software provides an ongoing statistical analysis of data collection using control charts, histograms, and process capability analysis. Whether on-premise or cloud-based, SPC software analyzes and interprets data so that areas of process improvement are identified.

SPC software can help identify the origin of a problem and demonstrate whether or not an improvement is effective. Using a cloud-based or on-premise deployment of SPC software can help identify process variation causes, determine process stability and capability, predict process outcomes, and plan for the future.

SPC software provides the capability to monitor and analyze data in order to reduce variation in a production process or other system. It uses statistical methods, which provide insight and accuracy into manufacturing processes or any process that can be measured over time.

Statistical Process Control deals with the science of analyzing data output of a specific process within a desired range and is commonly used for mass production. Statistical process control software is critical to managing a process. SPC software facilitates real-time data analysis, allowing manufacturers to keep operations running, meet customer requirements, minimize waste, maximize profits, and ensure quality.

SPC software generates control charts to assess whether or not your process is stable and performs capability analysis to determine at what level your process is capable of producing output within specification limits.

PQ Systems provides intuitive training for optimal SPC software use to help organizations implement SPC software solutions for real-time statistical process control.

Real-time SPC is the use of SPC charts and analysis during the time of production for immediate process feedback. Today’s supply chain and manufacturing processes depend on a combination of machinery and automation technology to produce products more efficiently. Real-time SPC programs allow operations to continuously improve quality control within manufacturing processes.

Real-time SPC software can significantly enhance manufacturing quality initiatives. When manufacturing capacity increases, quality management software is needed to provide visibility into the supply chain and help shrink the overall cost-of-quality.

Real-time SPC software processes data in real time as it is collected, providing operators with management tools to prevent and catch defects before they leave the manufacturing floor. Real-time SPC software allows manufacturers to understand which processes are statistically out of control.

Choosing SQCpack from PQ Systems as your real-time SPC software provides a variety of benefits including:

  • Cost reduction
  • Reduced variability
  • Process capability
  • Integration with data collection systems
  • Waste reduction
  • Decisions driven by data
  • On-premise or cloud-based deployment

PQ Systems has more than three decades of experience in the quality improvement industry, so we know the problems and challenges organizations face. Our solutions make quality improvement more efficient, more effective, and less complicated for our customers.

Our team of experienced quality experts work with clients to implement solutions that meet their unique needs. We provide flexible software, quality improvement consultation and training, and unrivaled customer service.

Benefits of Using SQCpack

Benefits of Using SQCpack

  • Allows you to employ SPC methods to analyze massive amounts of data quickly, easily, and cost effectively.

  • Performs automatic process capability analysis to drive better-than-spec results.

  • Provides automatic alerts for out-of-spec or out-of-control conditions to ensure that you stay on top of potential issues.

  • Helps you cut through the noise with visual charts that prioritize processes needing your attention.

  • Maintains secure and accurate historical SPC records for complete traceability.

  • Produces certificates of analysis to meet compliance requirements.