Abstract: Methods for error proofing, which also improve material, or information, flow through a process, are described. In one embodiment, the method includes the steps of identifying a process responsible for at least one error, process mapping the identified process, identifying at least one step in the identified process at which scrap and/or nonconformance occurred, and razing the identified process. The step of razing, in the one embodiment, is performed by determining whether a plurality of errors throughout the identified process occurs, and if a plurality of errors are identified throughout the identified process, determining whether a different process can be substituted for the identified process, and if the different process can be substituted for the identified process, then substituting the different process for the identified process.