Working in teams, but also for individuals, it is helpful if not required to define the key processes, especially those that will be repeated, in a structured way. Such a definition is then called a and it serves multiple purposes. First of all it can be used as a checklist such that the people in charge of a task can walk through the workflow and followed the previously specified sequence. In addition, a workflow definition improves quality of output as it almost guarantees the final result of such a process to meet the standards previously defined. And last but not least, such a workflow specification is excellent input for somebody who is in charge of developing the of very regular tasks.