The importance of documenting Business Processes has been covered in many Management articles and texts and is something organizations have commonly undertaken for more than 30 years. In fact, many productivity and quality movements had their foundation before or during World War II.
To illustrate the importance of documenting your business processes virtually all Process Improvement approaches, such as Six Sigma and Lean, start with documenting the business processes being studied. It is only more recently and over the last 10 to 15 years, that we have seen the new discipline of Business Process Management.
In this paper, David Jones and Roderick Brown provide some quick reference guides for Business Process Management using BPMN v2.0.