Used to quantitatively evaluate a set of X's (inputs) versus a set of Y's (outputs) to determine likely relationships between process inputs and process outputs. This investigation frequently minimizes the need for more expensive statistical evaluation of inputs that are unlikely to have an impact on the output. A C&E Matrix is also called a X-Y Matrix.
|When to Use||Purpose|
|Pre-project||Assist in project selection by focusing on areas of a process that have greater potential for improvement; showing links between process inputs and outputs.|
|Start of project||Assist in project scoping by focusing on the areas of the process that have greatest potential for improvement.|
|Mid-project||May be used to help identify potential inputs (X's).|
|Mid-project||Screen inputs to identify likely vital X's (primary use).|
No data requirements exist because you only use this tool to collect and organize data.