No action is effective unless it is implemented, and no action gets implemented unless someone is responsible to make it happen. The Corrective Action Matrix is used by problem-solving teams to keep track of who is doing what - by when.
The matrix can be either simple or very complicated. Many times a spread sheet version will suffice, while more complex projects may require a detailed gant chart. The following example shows a spreadsheet matrix along with an explanation of the headings. You may want to modify the matrix to fit the specific needs of your team (e.g. add resources or costs).
MoreSteam Toolbox - Corrective Action Matrix - http://www.moresteam.com/toolbox/corrective-action-matrix.cfm