Presentation Graphics

All the "camembert" things (or more well known in English as "pie chart", bar chart ....)

Extract from http://erc.msh.org/quality/foutools/foubrgrf.cfm

Name	Example	What is it?	Why use it?	When to use it?
Pie Chart		A pie chart is a tool that helps you visualise the relative importance of several categories of a variable.	To provide a rapid, graphical overview of data you have collected, such as information about different types of users, types of treatments, types of methods, etc.	When you have collected some data (for example, a counting of events or a distribution of values) and you want to graphically depict the data
Bar Graph		A bar graph is used to graphically present data that you have gathered. The type of data represented in a bar graph is the number of occurrences measured in different categories of data. A bar graph is often used to graphically represent the information you have gathered in a table. For example, in the bar graph below, you can see a comparison of the number of users of different services -- outpatient, inpatient, and other -- by type of service.	It helps you visualise relationships among different categories of factors affecting services to the users.	It is used when the information corresponds to a nominal scale (a counting of occurrences), and when you want to compare two or more groups (no more than six).
Histogram		A histogram is a diagram that graphically depicts the variability in a process or procedure within your agency. When you want to see how a procedure is working in your organisation, you can gather data about that procedure (such as the amount of time the procedure takes) and create a histogram. The histogram allows you to see the variation in the amount of time it takes to do that process.	Discovering and displaying this variation will greatly increase the team's knowledge about a process.	When you want to see the pattern of variation of a particular process, such as when you are describing a problem, or during data collection and analysis.
Line Graph		A line graph is a type of graph that represents data or sets of data that have been collected over a period of time. The data are plotted on a graph corresponding to standard intervals of time, and a line is drawn connecting the data points. If updated regularly, line graphs help managers to follow a trend over a period of time and take actions to manage the trend.	A line graph allows managers or team members to see trends in data (increase, decrease, or no change) over a period of time. This can be useful to help you visualise changes in the process over time or to let you compare the performance before and after the implementation of a solution.	To visualise a process during a specific period of time to help you describe a problem, or when you want to evaluate a solution to a problem.