CEP can be applied to all types of companies and to any process. There are a series of basic tools that allow to improve the quality of services and help for the analysis and solution of possible operational problems in the company. Its main tools are:
Histogram or bar chart (represents the distribution of variables)
Data collection template or control sheet (helps to collect the necessary data to measure and evaluate each process).
Pareto Diagram (allows assigning an order of priority).
Cause and Effect Diagram (allows seeing the reasons, motives or main and secondary factors of the problems, identify possible solutions and make decisions).
A bivariate diagram.
Flow chart (help to estimate the cost of the quality of the process).
Control chart (allows controlling the process).
Check sheet or control chart (helps to organize the data collected about a possible quality problem).