RACI stands for: 

Responsible 

Accountable 

Consulted 

Informed 

This type of chart provides a matrix of essential tasks assigned to roles. An individual might be accountable for the accuracy of input but not necessarily the one who enters the data. Generally speaking, everyone is informed in some manner. For a given task, there should only be one role that is accountable (as shown in all black background). When unclear roles exist however, key tasks may not be done and/or lack accuracy. Software training should include the RACI chart along with review of business rules and definitions.