Each stage leads to the next, displaying the sequence of events. the data (excluding the totals) including the row and column headings, and select Insert > Charts|Column. When you think about it, most of what we do in life is also based. The Control Chart in 7 Basic QC Tools is a type of run chart used for studying the process variation over time. Although Quality Digest often has in-depth articles about the nuances of control charts, I've found that many beginners are at a loss to figure out how to organize their data, especially in service industries such as health care, hotels, and food. Lesson Progress. Control charts are useful for monitoring any process that has a level of variation - for example, filling containers with a certain number of items. P chart & c-chart 1. Meaning of control chart. NET 4 you will discover that you have a ready made charting control, i. The control chart purpose is to take data about your business's performance and make it visual. Frequently used in project management, a Gantt chart provides a graphical illustration of a schedule that helps to plan, coordinate, and track specific tasks in a project. Built-in formulas, pivot tables and conditional formatting options save time and simplify common spreadsheet tasks. • It is a statistical procedure using control charts to se. Control charts are really two time-based charts plotted on the same form. AICHOUNI (1, *), A. OTHER EXAMPLES OF CONTROL CHART USE. Statistical process control charts and SAS Ying Jiang Health Quality Council Saskatoon, SK. How to Interpret Shewhart Control Charts TCQF October 9, 2012 David E. The most common application is as a tool to monitor process stability and control. The data for this CUSUM chart is shown in Figure 2. It also contains the source code for many examples in the book, as well as libraries to implement the techniques described in the text. No doubt that at some point in the. Other types of control charts have been developed, such as the EWMA chart, the CUSUM chart and the real-time contrasts chart, which detect smaller changes more efficiently by making use of information from observations collected prior to the most recent data point. This control is compatible with any browser which supports SVG including Internet Explorer 9 and above. Previous Topic. Note: Students’ control charts will vary even if they make the same choices for mean, standard deviation, and sample size. NET Framework 3. To answer these questions, we need to create control charts and use control limits. Step 5: Make decisions based on the correct interpretations control chart information. An X Bar-chart and an R-chart for the process are shown in Figure 4. Chart Navigation Topic Overview Purpose This topic demonstrates, with code examples, the navigation use properties in the XamDataChart™ control and their. A p-chart (sometimes called a p-control chart) is used in statistical quality control to graph proportions of defective items. Quality Control Chart: A graphic that depicts whether sampled products or processes are meeting their intended specifications and, if not, the degree by which they vary from those specifications. Control charts are an efficient way of analyzing performance data to evaluate a process. Special cause variation, as distinct from common cause variation, refers to changes in process performance due to sporadic or rare events indicating that a process is not "in control. Even high-level graduate students get this wrong,. , Purdue University, May 2013. 2) Shewhart control chart, targeted and using the time-sequence rules for detecting special causes. 3 Control of Nonconformity ° 8. Calculate the centerline, upper and lower control limits for the range chart? 3σ Control Chart. downward compatible ; overloads an input element. The quality characteristic of interest is the Weight column. An amount of stock. However, control charts are only as good as the data that are used to create them. ) in each chair of a sample of 100 chairs Plot. Create a flow chart with pictures. X-Bar & S Control Charts. Shifts in the Process Mean and process knowledge. This is called the small sample case for c and u control charts. Download Gantt Chart examples for free!. DataTables is a plug-in for the jQuery Javascript library. For example, an R-bar chart would be appropriate if you were changing the feeds to the process. But, when we observe a relationship between two or more variables, we can use this chart to determine whether the process is in control. Control charts are used to routinely monitor quality. A pre control chart helps a business set its limit within two categories; good or bad. NET is a highly customizable WebForms library which can be leveraged across a nearly endless number of business scenarios, be it real-time charting or analysis of multi-dimensional data. The Pie Chart type in RadHtmlChart has a rich functionality for any ASP. EXAMPLE 1: MONITOR OF DAILY SYSTOLIC BLOOD PRESSURE (MMHG) READINGS FOR A HYPERTENSIVE PATIENT7. ) in each chair of a sample of 100 chairs Plot. In statistical quality control, the c-chart is a type of control chart used to monitor "count"-type data, typically total number of nonconformities per unit. The implication of this difference in control-chart calculations is that, if there is a large natural-process variance component between subgroups, this variability could result in out-of-control signals for an and R control chart, while an XmR chart of the same situation could indicate an in-control process. The following example uses the Coating. Although no out-of-control point had been detected in the univariate charts, subgroup number 12 turns out to be out of control in the multivariate chart: To investigate why an out-of-control point (subgroup 12) occurred in the multivariate chart, I used simple graphs (scatterplots) to analyze time trends. Benjamin Buttram Abstract. Interpret the Moving Range chart (MR chart) first to examine the process variation. They address problems that the chart highlights until it becomes stable, then use it as an ongoing monitoring measurement. Lecture 10: Introduction to Statistical Process Control EE290H F05 Spanos 1 Introduction to Statistical Process Control The assignable cause The Control Chart Statistical basis of the control chart Control limits, false and true alarms and the operating characteristic function. png Example candelplot, filled region, line plot, datetime axes. Making the charts. There are several measurements of turnaround time within a single day; therefore, you can make an XBar Control Chart. You'll want to replace this section with a command to load your data from csv. For example, start with raw. Pre-control charts work well with stable and slow process drifts or changes. HOW TO PRESENT YOUR FLOWCHART The example shown below is a basic example of a flowchart. The control chart is used to discover the variation, so that the process can be adjusted to reduce it. Requirements. 7 Control Chart Examples & Samples. A control chart (also referred to as Shew hart chart) is a tool which plots data regarding a specific process. Upper and lower statistical control limits that define the constraints of common cause variations. Thus, the process variation is in control, and the quality engineer can examine the process center on the Individuals chart (I chart). How to make a D3. Control charts are most commonly used to monitor whether a process is stable and is under control. As other improvements are made, the control limits gradually reduce. Each series in the Pie Chart displays a portion of the data in a two-dimensional circle. If y values only, x values are assigned like 1, 2, 3, Note, for this plot you don't need any plugins. Imagine Karen is your project manager and she. The Chart controls enable you to create ASP. A process is a chain of steps that turns inputs into outputs. Lecture 10: Introduction to Statistical Process Control EE290H F05 Spanos 1 Introduction to Statistical Process Control The assignable cause The Control Chart Statistical basis of the control chart Control limits, false and true alarms and the operating characteristic function. Revision of Control Limits and Center LinesRevision of Control Limits and Center Lines • Effective use of control charts requires periodic review and revision of control limits and center lines. Chart Controlled With List Box. Creating Drill Down Reports - see how to build drill down reports using the Chart control. In the control chart, these tracked measurements are visually compared to decision limits calculated from probabilities of the actual. • Sometimes users replace the center line on the chart with a target value. The R-bar chart indicates that the process variability is in statistical control, This is so because range value lie between the UCL and the LCL. In a mature Process, there may be a body of Process knowledge which suggests which types of changes in the Process Mean are likely to occur. JS Charts examples: bar charts, pie charts and line graphs. In the case of this control plan, a subgroup of five samples is pulled hourly and checked with a go/no-go functional gage. Even high-level graduate students get this wrong,. Attribute charts monitor the process location and variation over time in a single chart. For example, we might measure the number of out-of-spec handles in a batch of 50 items at 8:00 a. In the control chart, these tracked measurements are visually compared to decision limits calculated from probabilities of the actual. The various factors affecting the Return on Investment (ROI) are illustrated through this chart. Large, abrupt shifts are not detected as fast as in a Shewhart chart. Building Your Own Quality Control Charts As great as qcc is, it doesn't have my favorite type of statistical quality control - The Western Electric Rules (WER). Name: "A" for example:. Description: This example uses a list box and worksheet formulas to change a chart's source range using a list box. You collect data each month on the number of injuries (c). This control can display four types of BarCharts: Column, StackedColumn, Bar and StackedBar. A series can be either an array of y values or an array of [x,y] data pairs. Shewhart) or process-behavior charts, are a statistical process control tool used to determine if a manufacturing or business process is in a state of control. View this Gantt Chart example, "Business Plan", in MindView’s Mind Map library. NET pages with simple, intuitive, and visually compelling charts for complex statistical or financial analysis. Hi Kumar, This is most useful document, really we got to know how to create SPC charts in SAP with your document. How to make a D3. To create a gauge chart, execute the following steps. It also supports many great features such as 2D and 3D rendering, feature to combine multiple chart types, support of client side JavaScript and AJAX and so on. Many of the tools in this process are easiest to understand when you're applying them in a fixed, predictable, repetitive environment. Variables control charts, like all control charts, help you identify causes of variation to investigate, so that you can adjust your process without over-controlling it. is the leading provider of real-time or delayed intraday stock and commodities charts and quotes. AngularJS (requires at least 1. The first, referred to as a univariate control chart, is a graphical display (chart) of one quality characteristic. See what ZingChart's 35+ built-in chart types & modules can do for your data visualization projects. I have been developing a control chart. Use this control chart template to monitor quality and manufacturing processes. The primary Statistical Process Control (SPC) tool for Six Sigma initiatives is the control chart — a graphical tracking of a process input or an output over time. The Mean (X-Bar) of each subgroup is charted on the top graph and the Range (R) of the. Although the examples focus on the case of a two-tool environment, the rationale for decision making can be extended to two-shift operations. For control charts with unequal subgroup sizes, the center line, control limits and zones may vary. Secretary Deputy Secretary Chief of Staff. The WinForms diagram control gives you plenty of options to style your flowchart. Please let me know if you use this in your project, if not, do feedback what missing or lacking features caused you to decide against using this control. Lead time is similar to cycle time, but is the time taken from when an issue is logged (not when work begins) until work is completed on that issue. Process control charts are fairly simple-looking connected-point charts. Variables control charts, like all control charts, help you identify causes of variation to investigate, so that you can adjust your process without over-controlling it. Notice the inconsistent plot points and that one point is outside of the control limits. See below for more information and references related to creating control charts. For examples, refer to the ISA standard. More easily understood by managers. • As a trouble shooting tool • As an acceptance tool • Selecting the variable for charting: only important variables should be. XBAR-R CHART. Chart Controlled With List Box. Centerline Control Limits X bar and R Charts X bar and s Charts Tables of Constants for Control charts Factors for Control Limits X bar and R Charts X bar and s charts Chart for Ranges (R) Chart for Standard Deviation (s) Table 8A - Variable Data Factors for Control Limits CL X = X CL R = R CL X X = CL s = s UCL X A R X 2 = + LCL X A R X 2. While the control plan example on this page is manufacturing related, the same concept can be adapted to any number of physical or transactional work processes. Out-of-control occurrences are called special-cause conditions and can trigger a causal problem investigation. P Control Charts. The control chart is a graph used to study how a process changes over time. Example 2: Brushing, Assigning Causes and Actions. Examples of Out. TRY NOW FOR FREE. The X-bar and R chart is merely one example of the different control charts available for process monitoring and improvement. Microsoft Chart control provides different ways to set color of the series and data points: Palettes Selecting one of the predefined palettes is the easiest way to change chart series colors. For this example, the chart for Control 1 should be scaled to accomodate a range from 200 - 4*4, which is 184, to 200 + 4*4, which is 216. Note that at least 25 sample subgroups should used to get an accurate measure of the process variation. NOTES: To construct the "X" and "MR" charts (these are companions) we compute the Moving Ranges as: R 2 = range of 1st and 2nd observations, R 3 = range of 2nd and 3rd observations, R 4 = range of 3rd and 4th. X-bar and s charts are generally recommended over the X-bar and R charts when the subgroup sample size is moderately large (n > 10), or when the sample size is variable from subgroup to subgroup (Montgomery, 2013). CUSUM Example: Calculating CUSUM Now, we'll calculate the CUSUM value for each daily control. A UML documentation for an elevator system Lu Luo 1 of 29 A UML documentation for an elevator system 1. Control charts are an efficient way of analyzing performance data to evaluate a process. Together they monitor the process average as well as process variation. Any of the following chart types may be. Click the Download button on this page to start the download. The confusion may stem from the fact that different sets of rules for identifying non-random variation in run charts are available, and that these sets differ significantly in their diagnostic properties. This section will briefly explain the SFC and demonstrate how it can be used to specify control requirements by an example. Improve the performance of product. It provides visual information about the work breakdown structure of the project. Flowchart Tools. TRY NOW FOR FREE. Control charts are most commonly used to monitor whether a process is stable and is under control. Control charts have one central line or mean line (average), and then we have the Upper Control Limit (UCL) and Lower Control Limit (LCL). Example Control Chart excluding issues where the resolution is not 'Fixed' (note the higher average cycle time) Tip 3: Exclude current work The Control Chart shows data for issues that have been in a selected column, but are no longer in a selected column. 3 Control of Nonconformity ° 8. Size of unit must be constant Example: Count # defects (scratches, chips etc. Built on top of d3. A subgroup sample of four is chosen. Attribute charts monitor the process location and variation over time in a single chart. C# Charts, Visual Studio. Previously, we had been using an in-house charting control, but this control has become rather klunky and bloated over the years, and so we wanted to look for an alternative. In this lesson you will learn how to create statistical process control chart. • If the subgroup size varies, it is necessary to recalculate the control limits for every subgroup size. Biochemical Oxygen Demand (BOD) and Carbonaceous BOD (CBOD), an Ecology publication, has a good explanation and example of the use of control charting in Appendix E, Water and Wastewater. Each procedure is easy to use and is validated for accuracy. Special cause variation, as distinct from common cause variation, refers to changes in process performance due to sporadic or rare events indicating that a process is not “in control. 227-19, as applicable. Quality Control Chart: A graphic that depicts whether sampled products or processes are meeting their intended specifications and, if not, the degree by which they vary from those specifications. The chart indicates that the process is in control. Although Quality Digest often has in-depth articles about the nuances of control charts, I’ve found that many beginners are at a loss to figure out how to organize their data, especially in service industries such as health care, hotels, and food. After reading this article you will learn about the control charts for variables and attributes. Hey guys I've got the following code which populates an ASP. In this example, we used a column chart to show the number of homes sold between January and June and then used a line chart to make it easier for readers to quickly identify the average sales price by month. An X-bar chart and an Individual measurements chart will have different limits. This topic explains, with code examples, how to enable and customize the crosshair in the XamDataChart™ control. It is an alternative to the Shewhart control chart. With x-axes that are time based, the chart shows a history of the process. Centerline Control Limits X bar and R Charts X bar and s Charts Tables of Constants for Control charts Factors for Control Limits X bar and R Charts X bar and s charts Chart for Ranges (R) Chart for Standard Deviation (s) Table 8A - Variable Data Factors for Control Limits CL X = X CL R = R CL X X = CL s = s UCL X A R X 2 = + LCL X A R X 2. Quality control is the process of detecting mistakes in operational outputs such as products and services. For more information on what a Gantt chart is, who uses a Gantt chart, the features of a Gantt chart, and the benefits of leveraging a Gantt chart in your project, visit Guide to Gantt Charts. • Sometimes users replace the center line on the chart with a target value. This can be rounded to 180 to 220 to fit the 10x10 or 20x20 grids of the graph paper. Download a FREE 30 day trial. Thanks for this lesson, I found it easy to follow and really helped me get to know Tableau a better. is the leading provider of real-time or delayed intraday stock and commodities charts and quotes. Flow charts are wonderful for mapping processes for machines, as they lay out a sequence of binary decisions, meaning yes or no. Default is to create axes in a new figure. But, when we observe a relationship between two or more variables, we can use this chart to determine whether the process is in control. Examples of Out. Each data point plotted on the control chart. NET Framework 3. You may wish to think of this in terms of stem-and-leaf plots constructed from data collected over separate time intervals (e. A well-designed science experiment has well-defined controls and variables. An easy method to monitor and control a process average. An example of a c control chart is shown below. NET control for user-defined cross-tab reports. It details: new version number; person making the change; purpose of the change or the change itself; date of the change; Example version control table. This topic explains, with code examples, how to enable and customize the crosshair in the XamDataChart™ control. Although no out-of-control point had been detected in the univariate charts, subgroup number 12 turns out to be out of control in the multivariate chart: To investigate why an out-of-control point (subgroup 12) occurred in the multivariate chart, I used simple graphs (scatterplots) to analyze time trends. 1 day, 7 hours ago. The key inputs for an XmR chart are a process, a detail you want to control, and a measurable on that detail you can track sequentially. If you are in a hurry, simply download the Excel file. Many businesses rely on this principle to improve their products and services. net mvc? I need this for my project. To optimise the production. The control chart is a graph used to study how a process changes over time. These labels are optional and will appear on the horizontal X-Axis of the Individuals Control Chart. Use the chart Wizard to create the control charts (select "line chart" within the Wizard). You may want to turn to the Data Collection module at this point to review the process of collecting and categorizing data that you can chart. The moving range is also plotted in another control chart with the average of moving range as central line. This sample demonstrates how to specify radial gauge analog clock appearance. NET Framework 4. Achieve Organizational Objective of! effectiveness & efficiency of operations;! reliability of financial reporting;! compliance with applicable laws and regulations Elements of a management. CUSUM charts are built on the principle of Maximum Likelihood Estimation (MLE). Free help from wikiHow. To find an assignable cause, one has to resort to the individual univariate control charts or some other univariate procedure that should accompany this multivariate chart. Control charts fall into two categories: Variable and Attribute Control Charts. A demonstration of TreeGrid application showing interactive Gantt chart - timetable of tasks and their completion, resources, dependencies and scheduling in project management and also interactive Network diagram of the same taks with desriptions and dependencies. For example the quality of a ball bearing. XBAR-R CHART. Shewhart) or process-behavior charts, are a statistical process control tool used to determine if a manufacturing or business process is in a state of control. Commercial Chart controls such as Dundas were way out of budget, and so I came across Microsoft's free Chart control, MSChart for. Control charts display details of the history of outcomes at a particular hospital and in many cases, learning actions could be instigated based on the plot itself without using thresholds; for example, the abrupt appearance of a downward slope as in Fig. I am taking an example of a process to test repetitive weekly builds. Welcome to the Growth Chart training Web site, which offers a set of self-directed, interactive training courses for health care professionals using the pediatric growth charts in clinical and public health settings to assess growth of infants, children, and teens. Each series in the Pie Chart displays a portion of the data in a two-dimensional circle. This control is compatible with any browser which supports SVG including Internet Explorer 9 and above. Then a method of implementing SFC designs will be outlined and demonstrated. So I know how to make a normal individual control chart for each name separately which would be this. It is a highly flexible tool, built upon the foundations of progressive enhancement, that adds all of these advanced features to any HTML table. Consulting | Excel Examples. A flowchart (flow-chart or flow chart) is a schematic representation of an algorithm or a process. 0 Framework is a big and comprehensive control, so to explain the whole control would be too much for a short blog-post :) Also, there are already many good introductions and tutorials about the chart control, so I will give you a short list on what you can look at next:. 2 Corrective Action ° 8. 2 Statistical stability A process is statistically stable over time (with respect to characteristic X) if the distribution of Xdoes not change over time { see Fig. An X-bar, S chart is actually 2 plots between the process mean and the process range (as described by standard deviation) over time and is an example of statistical process control. Here is an example of a control chart:. In PowerApps, we can add the Chart control. Figure 1 is an example of a control chart using the driving to work example. I have been developing a control chart. For example, suppose you are using a c control chart to track the number of recordable injuries in a plant on a monthly basis. - The upper and lower control limits (UCL and LCL), which are set depending on the type of SPC chart. It consists of three areas: a chart area, a table area, and a global toolbar. Even high-level graduate students get this wrong,. NET Chart to the data source that suits your project best, be it a declarative ASP. The control chart tool is part of the quality control management and it is a graphic display of the data against established control limits to reflect both the maximum and minimum values. The following example uses the Coating. Examples of a control chart include: X-Bar & R Control Charts. JavaScript / HTML5 charts and maps data-viz libraries for web sites and applications. Control chart and run chart can be identified as statistical tools used in tracking the performance of the company within a particular period. A control chart is a tool that is used to determine the predictability, behavior and stability of the process over time. The picture below provides an example of long form data. There are a few ways to monitor your fertility for birth control — they’re called Fertility Awareness Methods (FAMs for short). I’m brand new to Tableau but not to control charts, having built a number of them in Excel. C-charts show how the process, measured by the number of nonconformities per item or group of items, changes over time. It shows tasks in a Security and Access Control project. Product quality control chart. The confusion may stem from the fact that different sets of rules for identifying non-random variation in run charts are available, and that these sets differ significantly in their diagnostic properties. X-bar and s charts are generally recommended over the X-bar and R charts when the subgroup sample size is moderately large (n > 10), or when the sample size is variable from subgroup to subgroup (Montgomery, 2013). First we are going to find the mean and standard deviation. Description: This example uses a list box and worksheet formulas to change a chart's source range using a list box. This introductory tutorial covers how to make a bar chart using the D3 JavaScript library. The overall objective of inventory (stock) control is to maintain inventory levels to that the total costs of holding stocks is minimise. I have been developing a control chart. Variables control charts for subgroup data Each point on the graph represents a subgroup; that is, a group of units produced under the same set of conditions. NET - WinForms, ASP. The first, referred to as a univariate control chart, is a graphical display (chart) of one quality characteristic. Outline • Introduction • SAS procedure • Examples. Control Charts are time charts designed to display signals or warnings of special cause variation. 3 Control of Documents ° 4. 227-19, as applicable. The measurement of the characteristic is plotted on the vertical axis, with the sample number (also called subgroup, subsample, or just sample number) on the horizontal axis. The I-MR chart (Individuals and Moving Range) is the variable data control chart to be used when each item is processed uniquely and therefore a subgroup sample size of one is appropriate. by | posted in: Analytics, Business Templates, Excel, Excel Dashboard, Excel Dashboards, Management, Management Reporting | 0. The control tests that were used all passed in this case. However, even good publications can go bad. Control charts, sometimes called Process Control Charts or Statistical Control Charts, are simply graphs that plot data related to a process in a time-ordered sequence. Such a control chart has a constant center line at 0, and upper and lower control limits of +3 and -3. An overview of quality control with examples. QC Charts Example 1: Specifying Control Charts for Variables, Process Capability. Note that blank control charts include not analytical results but. They address problems that the chart highlights until it becomes stable, then use it as an ongoing monitoring measurement. controlled BP described above, the control chart has several other uses, including to: Monitor process measures. The chart is just a monitoring tool. Data are plotted in time order. Control charts help us in visualizing this variation. This is the p parameter for p and np charts, the mean defects per unit for u and c charts, and the normal mu parameter for other charts. It is also occasionally used to monitor the total number of events occurring in a given unit of time. NET and C#, this high performance charting control also contains a feature rich data access and aggregation system with calculation support. View this Gantt Chart example, "Business Plan", in MindView’s Mind Map library. The subgroup sample size used here is 3, but it can range from 2 to about 10-12 and is typically around 5. Control charts display data as a series of connected points. Default is to create axes in a new figure. This control is compatible with any browser which supports SVG including Internet Explorer 9 and above. How to Create a Control Chart. js or view the source on GitHub. In most cases, you would start with Create the Baseline Control Chart , where you let JMP calculate the control limits for you. The centreline of a run chart consists of either the mean or median. The most basic jqPlot chart takes a series of data and plots a line. Using Chart Control in Visual Studio 2010 (Web and Windows Explained) This article explains the use of chart control from the basic on how to install the required software for making the development environment and finally with. 1 day, 7 hours ago. Download Gantt Chart examples for free!. The most common application is as a tool to monitor process stability and control. the process. Input the daily imperfection data into the spreadsheet, and the chart will graphically depicts the average value and the upper and lower control limits. Both charts exhibit co. Runs tests can be used to check control charts for unnatural patterns that are most likely caused by assignable causes. If you want to create a quick chart there's a free and easy-to-use component in Visual Studio 2010. Lucidchart is the most intuitive flowchart software used by teams and individuals everywhere. Example 1 – Create a bar chart for the data in Figure 1. • Traditional variable control charts are constructed using a constant subgroup sample size. js-based SPC Control Charts in javascript. Reduce the COPQ/COQ. Decreasing trend 5. Use this chart to analyze the inventory system for continuous improvement. The x-bar chart indicates that the production process is out of control. But, when we observe a relationship between two or more variables, we can use this chart to determine whether the process is in control. After reading this article you will learn about the control charts for variables and attributes. Thus, the process variation is in control, and the quality engineer can examine the process center on the Individuals chart (I chart). (C) Normal. Introduction to Control Charts Variables and Attributes. As we know Charts and Graphs make data easier to understand and interpret. Tip: You can use a list box to change the values in a chart by using the list box control ranges and the Indirect function. The control chart is used to discover the variation, so that the process can be adjusted to reduce it. Examples of a control chart include: X-Bar & R Control Charts. If you want to create multi series bar chart you could follow the steps given below. ' Read it or download it for free. Major Professor: James Jenkins. I want to write a script that will create a control chart using the qcc package for each Name and then callout the rows that are beyond the limits for the control chart of each name. For detailed insight on what to look for when choosing the a Gantt chart software, visit Quick and Easy Gantt Chart Software, Tools, and Apps. In statistical quality control, the c-chart is a type of control chart used to monitor "count"-type data, typically total number of nonconformities per unit. The primary Statistical Process Control (SPC) tool for Six Sigma initiatives is the control chart — a graphical tracking of a process input or an output over time.